Linux Network Administrators Guide
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Index

Symbols

! (in email address), Obsolete Mail Formats
% (in email address), Mixing Different Mail Formats
& (in email address), Mixing Different Mail Formats
/etc/aliases file, Managing Mail Aliases
/usr/sbin/sendmail, How Is Mail Delivered?
16450 UART, Serial Hardware
16550 UART, Serial Hardware
2.0 kernels
IP accounting, Configuring the Kernel for IP Accounting
IP firewalls, Original IP Firewall (2.0 Kernels)
2.2 kernels
IP accounting, Configuring the Kernel for IP Accounting
IP firewall chains, IP Firewall Chains (2.2 Kernels)
IP masquerade, Configuring the Kernel for IP Masquerade
NFS server support, The NetworkFile System, Kernel-Based NFSv2 Server Support
2.4 kernels
IP accounting, Configuring the Kernel for IP Accounting
IP masquerade, Configuring the Kernel for IP Masquerade
netfilter and IP tables, Netfilter and IP Tables (2.4 Kernels)
8250 UART, Serial Hardware

A

A (DNS record), The DNS Database Files
absolute mail address, RFC-822
accept(), The Socket Library
access
granting, Using dip, Running in Server Mode, The exports File
NNTP, Restricting NNTP Access, NNTP Authorization
PPP, General Security Considerations
restricting, System Security, The CHAP Secrets File, The tcpd Access Control Facility, The exports File
to remote files, Mounting an NFS Volume
UUCP, Controlling Access to UUCP Features
access network hardware
See interfaces
access_db feature (sendmail), The access database
active file (INN), The active and newsgroups files
active hubs, Ethernets
active.times file (/var/lib/news), The active File
Address Resolution Protocol
See ARP
addresses
bang path, Obsolete Mail Formats, Mail Routing in the UUCP World
broadcast, IP Addresses, Ethernet Interfaces, All About ifconfig
choosing (IP), Assigning IP Addresses
DNS resource record, The DNS Database Files
email, Email Addresses
Ethernet, Ethernets
Hesiod, The DNS Database
hybrid, Mixing Different Mail Formats
IP, The Internet Protocol, IP Addresses
loopback, IP Addresses
mapping to hostnames, Reverse Lookups
negotiation with PPP, Running pppd, Choosing IP Addresses, The CHAP Secrets File
UUCP hostname, Site Naming
alias files for Exim, Alias Files
aliases
C News and, The sys File
email, Managing Mail Aliases, Alias Files
hostname, The DNS Database, The DNS Database Files
aliasing, IP (Internet Protocol), Kernel Networking Options in Linux 2.0.0 and Higher
Allman, Eric, Electronic Mail
amateur radio protocols, Other Types of Hardware, Kernel Networking Options in Linux 2.0.0 and Higher
ampersand (in email address), Mixing Different Mail Formats
anonymous UUCP, Anonymous UUCP
ArcNet protocol driver, Other Network Types
ARP (Address Resolution Protocol), Address Resolution
display table, Checking the ARP Tables
enabling/disabling, All About ifconfig
proxy, The PLIP Interface, Checking the ARP Tables, Routing Through a PPP Link
ARPANET, Introduction to TCP/IP Networks
article command (NNTP), Reading an Article from a Group
articles (news), What Is Usenet, Anyway?
batching, Article Batching
expiring, Expiring News Articles
listing, Listing New Articles
posting, Posting an Article
retrieving headers/message body, Retrieving an Article Header Only
async map, Link Control Options
Asynchronous Control Character Map, Link Control Options
ATM (Asynchronous Transfer Mode), Other Types of Hardware, The Socket Library
authentication
issues, System Security
on remote hosts, Configuring Remote Loginand Execution
with PPP, Authentication with PPP
authoritative name server, Types of Name Servers, The DNS Database, The DNS Database Files
authorization
with NNTP, NNTP Authorization
with PPP, The Point-to-Point Protocol
auto-IRQ, Ethernet Autoprobing
autoprobing
Ethernet, Ethernet Autoprobing
failure, Ethernet Autoprobing
AX.25 device, A Tour of Linux Network Devices
AX.25 protocol, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher
AX25 HOWTO, Other Types of Hardware, Kernel Networking Options in Linux 2.0.0 and Higher
Aznar, Guylhem, Electronic Mail

B

Barber, Stan, NNTP and thenntpd Daemon
Basic Networking Utilities
See Taylor UUCP, HDB
batching
email, How Is Mail Delivered?
news, How Does Usenet Handle News?, Article Batching
BBS (Bulletin Board System), Communications Software for Modem Links
Becker, Donald, Ethernet Installation
Berkeley Internet Name Domain
See BIND
Berkeley Socket Library, The Socket Library
binaries, installing, Installing the Binaries
BIND (Berkeley Internet Name Domain), Name Service and Resolver Configuration, Running named
bind(), The Socket Library
bindery manipulation tools, Browsing and Manipulating Bindery Data
Biro, Ross, Linux Networking
blacklist_recipients feature (sendmail), Barring users from receiving mail
BNC connector, Ethernets
BNU (Basic Networking Utilities)
See Taylor UUCP, HDB
body command (NNTP), Retrieving an Article Body Only
BOOTP, Address Resolution
bootup sequence, Configuring TCP/IP Networking
bounced mail, How Is Mail Delivered?
Brewery, Virtual, Example Network:The Virtual Brewery
bridges, Ethernets
broadcast address, All About ifconfig
bsmtp program, How Is Mail Delivered?
bulletin board, Communications Software for Modem Links
Burkett, B. Scott, Sources of Information

C

C News, Usenet History, C News
active file, Delivering News, Installation, The active File
archiving, Expiring News
article batching, Article Batching
batch parameters, Article Batching
batching, Delivering News, The sys File
compressing batches, Article Batching
control messages in, Control Messages
creating initial configuration, Installation
delivering news in, Delivering News
exchanging news, The sys File
excluding sites, The sys File
expiration of news in, Expiring News
history file, Delivering News, Expiring News
hostname aliases, The sys File
ihave/sendme, The sys File, Article Batching
in NFS, C News in an NFS Environment
installing, Installation
limiting a feed, The sys File, Miscellaneous Files
list of current groups, The active File, Miscellaneous Files
log files, Miscellaneous Files
moderated groups, Miscellaneous Files
newsmaster, Installation
NNTP support, The sys File, nntpd Interaction with C News
receiving news, Delivering News, The sys File
relaynews command, Delivering News
rnews command, The sys File
sending news, The sys File, Article Batching
spool directory, C News
sys file, The sys File
sys file, Installation
togo file, The sys File
update low water mark, The active File, Expiring News, trn Configuration
updating active files, The checkgroups Message
usenet, Installation
UUCP, Delivering News, Article Batching
cache (BIND option), The named.boot File
caching-only name server, Caching-only named Configuration, Running pppd
Caldera (Linux distribution), Obtaining Linux
NetWare support, Caldera Support
call sequence checks, The Inner Workings of uucico
cancel control message, The cancel Message
canonical hostname, The DNS Database, The DNS Database Files
centralized mail handling, Mail Routing on the Internet, Mixing UUCP and RFC-822
chains
IP firewall, IP Firewall Chains (2.2 Kernels)
user-defined, User-defined chains
CHAP (Challenge Handshake Authentication Protocol), The Point-to-Point Protocol, Authentication with PPP, The CHAP Secrets File
character set in elm, National Character Sets
chargen (internal service), The inetd Super Server
chat program, PPP on Linux, Using chat to Automate Dialing
PPP, Using chat to Automate Dialing
SLIP, A Sample Script
chat script, Using chat to Automate Dialing
UUCP, The login chat
checkgroups control message, The checkgroups Message, sendsys, version, and senduuname
checking
ARP tables, Checking the ARP Tables
Ethernet interface, Checking the ARP Tables
hostnames, Verifying the Name Server Setup
IP routing table, Ethernet Interfaces
mail queue, Mail Delivery Modes
name server, Verifying the Name Server Setup
network
configuration, The Loopback Interface, Ethernet Interfaces
connections, Displaying Connections
interface, The Loopback Interface, Displaying Interface Statistics
NIS, Running an NIS Server, Setting Up an NIS Client with GNU libc
NNTP, nntpd Interaction with C News
PPP, Debugging Your PPP Setup
reachabilty, The Loopback Interface, Ethernet Interfaces
routing table, Displaying the Routing Table
TCP server activity, Displaying Connections
UUCP, Taylor Configuration Files
choosing
IP addresses, Assigning IP Addresses
NIS domain, Getting Acquainted with NIS
NIS maps, Choosing the Right Maps
UUCP hostname, Site Naming
CNAME (DNS record), The DNS Database Files
code, obtaining for
Linux network, Obtaining Linux, Where to Get the Code
sendmail, Installing sendmail
collisions (Ethernet), Ethernets
Collyer, Geoff, Usenet History
com domain, How DNS Works
COM port, The Serial Device Special Files
comp.mail.uucp, ManagingTaylor UUCP
comp.os.linux.admin, Linux Usenet Newsgroups
comp.os.linux.announce, Linux Usenet Newsgroups
comp.os.linux.development, Linux Usenet Newsgroups
comp.os.linux.help, Linux Usenet Newsgroups
comp.os.linux.misc, Linux Usenet Newsgroups
comp.os.linux.networking, Linux Usenet Newsgroups
Compressed Serial Line IP
See CSLIP
configuration files
INN (Internet News), INN Configuration Files
sendmail, Overview of Configuration Files
Taylor UUCP, Taylor Configuration Files
UUCP, UUCP Configuration Files
configuring
C News, Installation
on a LAN, C News in an NFS Environment
caching-only name server, Caching-only named Configuration
default domain, Configuring Name Server Lookups Using resolv.conf
dip program, Using dip
DNS over SLIP/PPP, Caching-only named Configuration
elm (electronic mail), Configuring elm
Ethernet, Kernel Options in Linux 2.0 and Higher, Ethernet Installation, Ethernet Autoprobing, Ethernet Interfaces
Exim
See Exim
hostname, Setting the Hostname
resolution, Writing hosts and networks Files, Name Service and Resolver Configuration
IP accounting, Configuring IP Accounting
IP gateways, Configuring a Gateway
IP masquerade, Configuring IP Masquerade
IPX, Kernel Networking Options in Linux 2.0.0 and Higher
kernel, Kernel Options in Linux 2.0 and Higher
for IP accounting, Configuring the Kernel for IP Accounting
with IP firewall, Setting Up Linux for Firewalling
for IP masquerade, Configuring the Kernel for IP Masquerade
loopback interface device, The Loopback Interface
name server, Running named
lookups, Configuring Name Server Lookups Using resolv.conf
networks
hardware, Configuringthe NetworkingHardware
interfaces, Interface Configuration for IP
services, The inetd Super Server
newsfeeds, Configuring Newsfeeds
newsgroups, Configuring Newsgroups
newsreader, Newsreader Configuration
NFS, Kernel Options in Linux 2.0 and Higher
NIS, The Network Information System, Running an NIS Server, Setting Up an NIS Client with GNU libc
NNTP, NNTP and thenntpd Daemon
PLIP, Kernel Options in Linux 2.0 and Higher, The PLIP Driver, The PLIP Interface
PPP, Kernel Options in Linux 2.0 and Higher, The SLIP and PPP Interfaces, The Point-to-Point Protocol, Running pppd
remote login and execution, Configuring Remote Loginand Execution
sendmail, Sendmail
for SMTP, Two Example sendmail.mc Files
serial port, Using the Configuration Utilities
SLIP, Kernel Options in Linux 2.0 and Higher, The SLIP and PPP Interfaces, Serial Line IP
server, Running in Server Mode
ssh command, Installing and Configuring ssh
Taylor UUCP, ManagingTaylor UUCP
Usenet news, Installation
connect(), The Socket Library
control.ctl file (INN), The control.ctl file
copyright information, Linux Network Administrator's Guide, Second Edition Copyright Information
Corel (Linux distribution), Obtaining Linux
Cox, Alan, Linux Networking, Original IP Firewall (2.0 Kernels), IPX and Linux
creating
DNS zones, Reverse Lookups
NIS maps, Running an NIS Server
subdomains, How DNS Works
subnets, Creating Subnets, Reverse Lookups
cron, Maintaining Your System
expiring mail from, Expiring News
running
Exim via, Mail Delivery Modes
newsdaily in, Maintenance Tools and Tasks
nnmaster via, nn Configuration
CSLIP (Compressed Serial Line IP) protocol, IP Over Serial Lines, SLIP Operation, Running in Server Mode, The Point-to-Point Protocol
ctlinnd command (INN), Managing INN: The ctlinnd Command

D

D-Link pocket adaptor, Ethernet Installation
daemons, The inetd Super Server
wrapping via tcpd, The tcpd Access Control Facility
datagram types, ICMP protocol, ICMP datagram types
datagrams, TCP/IP Networks, The Internet Protocol
fragmentation of, Accounting by Service Port
IP chains vs. netfilter, Netfilter and IP Tables (2.4 Kernels)
IP filtering, What Is IP Filtering?
masquerading, IP Masquerade and Network Address Translation
stages of processing, Three Ways We Can Do Filtering
Davies, David C., Ethernet Installation
daytime (internal service), The inetd Super Server
dbmload program, Running an NIS Server
DDI (Device Driver Interface), Different Streaks of Development
Debian (Linux distribution), Obtaining Linux
debugging
DNS databases, Other Useful Tools
PPP setup, Debugging Your PPP Setup
UUCP setup, uucico Command-line Options
default email route, Mail Routing in the UUCP World
default IP route
See IP (Internet Protocol), default route
delegating
DNS subdomains, How DNS Works, Reverse Lookups
IP subnets, Subnetworks
delivering
email, How Is Mail Delivered?
news, How Does Usenet Handle News?, Delivering News
demand dialing, Demand Dialing
denial of service attacks, Methods of Attack
Dent, Arthur, Running in Server Mode
/dev/cua*, Accessing Serial Devices
/dev/modem, The Serial Device Special Files
/dev/ttyS*, Accessing Serial Devices
Device Driver Interface (DDI), Different Streaks of Development
device drivers, Configuringthe NetworkingHardware
device files, Configuringthe NetworkingHardware
devices
Linux network, A Tour of Linux Network Devices
major/minor numbers, Configuringthe NetworkingHardware
serial, Configuring the Serial Hardware
supporting IPX, Network Devices Supporting IPX
Dial-Up List (DUL), Protecting Against Mail Spam
dialin device, Accessing Serial Devices
dialing
demand, Demand Dialing
persistent, Persistent Dialing
dialout device, Accessing Serial Devices
dialup IP, Serial Line IP
dip program, Using dip
diphosts file, Running in Server Mode
diplogin command, Running in Server Mode
diskless clients, Address Resolution
DISPLAY (environment variable), Introduction to TCP/IP Networks
displaying
active connections, Displaying Connections
ARP table, Checking the ARP Tables
interface
configuration, All About ifconfig
statistics, Displaying Interface Statistics
IP routing table, Ethernet Interfaces, Displaying the Routing Table
irtt, Displaying the Routing Table
NIS map nicknames, Getting Acquainted with NIS
UUCP configuration, Taylor Configuration Files
DNS (Domain Name System), Resolving Host Names
checking, Verifying the Name Server Setup
configuring server, Running named
converting /etc/hosts, Other Useful Tools
databases, The DNS Database, The DNS Database Files
debugging databases, Other Useful Tools
lookup, Name Lookups with DNS
query, Name Lookups with DNS
resolver and, The nsswitch.conf File
resource record, The DNS Database, The DNS Database Files
reverse mapping, Reverse Lookups
root name servers, Writing the Master Files, Verifying the Name Server Setup
RR
See DNS, resource record
time to live, Name Lookups with DNS, The DNS Database Files
tools, Other Useful Tools
zones, How DNS Works, The DNS Database Files
dnswalk program, Other Useful Tools
documentation (Linux)
commercial, Documentation Available Commercially
via FTP, Documentation Available via FTP
via WWW, Documentation Available via WWW
DOMAIN macro definition, DOMAIN
domain name servers, Types of Name Servers
Domain Name System
See DNS
domainname command, Setting the Hostname, Getting Acquainted with NIS
domains, How DNS Works
mail routing, Mixing UUCP and RFC-822
names, How DNS Works
default, Configuring Name Server Lookups Using resolv.conf
NIS versus DNS, Setting the Hostname
NIS, Getting Acquainted with NIS, Setting Up an NIS Client with GNU libc
top-level, How DNS Works
dotted decimal notation, The Internet Protocol
dotted quad notation, The Internet Protocol, IP Addresses
drivers
ArcNet, Other Network Types
D-Link, Ethernet Installation
Ethernet, Ethernet Installation
FDDI, Other Network Types
PLIP, The PLIP Driver
PPP, The PPP and SLIP Drivers, PPP on Linux
SLIP, The PPP and SLIP Drivers
Token Ring, Other Network Types
Dryak, Ales, IPX and Linux, NetWare Server Emulation
dummy interface configuration, The Dummy Interface
dynamic routing, The Routing Table

E

eavesdropping programs, Methods of Attack
Echo Request/Echo Response messages, Link Control Options
echo service, The Services and Protocols Files
edu domain, How DNS Works
Ekwall, Bj�rn, Ethernet Installation
electronic mail
See email
elm (electronic mail), Configuring elm
national character sets, National Character Sets
email, Electronic Mail
address formats, Email Addresses
aliases, Managing Mail Aliases, Alias Files
bang path notation, Obsolete Mail Formats, Mail Routing in the UUCP World
barring users from receiving, Barring users from receiving mail
batching, How Is Mail Delivered?
bounced, How Is Mail Delivered?
centralizing, Mail Routing on the Internet, Mixing UUCP and RFC-822
composing, How Is Mail Delivered?
default route, Mail Routing in the UUCP World
delivering, How Is Mail Delivered?
directing to a file, Delivering Messages to Local Addresses
domain-based routing, Mail Routing on the Internet, Mixing UUCP and RFC-822
elm, Configuring elm
Exim, Electronic Mail
See also Exim
feeding to a command, Delivering Messages to Local Addresses
forwarding, Forwarding, Alias Files
gateway, Mail Routing on the Internet
managing spam, Managing Unwanted or Unsolicited Mail (Spam), Protecting Against Mail Spam
map files, Mixing UUCP and RFC-822
maps, Mail Routing in the UUCP World
message body, What Is a Mail Message?
message format, What Is a Mail Message?
message headers, What Is a Mail Message?
multimedia, Electronic Mail
over UUCP, How Is Mail Delivered?
paths file, Mail Routing in the UUCP World, Mixing UUCP and RFC-822
queue, Forcing a Remote Host to Process its Mail Queue, Getting EximUp and Running, Mail Delivery Modes
routing, How Does Mail Routing Work?
between Internet and UUCP, Mail Routing on the Internet
domain-based, Mixing UUCP and RFC-822
on Internet, Mail Routing on the Internet
smart host, Mail Routing in the UUCP World
UUCP networks, Mail Routing in the UUCP World
sendmail, Electronic Mail
unsolicited, Managing Unwanted or Unsolicited Mail (Spam), Protecting Against Mail Spam
virtual hosting, Configuring Virtual Email Hosting
envelope, What Is a Mail Message?
environment variables
DISPLAY, Introduction to TCP/IP Networks
NNTPSERVER, tin Configuration
resolver, Resolver environment variables
Eriksson, Peter, The Network Information System
errors, checking for, Maintaining Your System
establishing the connection, Using chat to Automate Dialing
/etc/aliases file, Getting Acquainted with NIS, Alias Files
/etc/dip.pid file, A Sample Script
/etc/diphosts file, Running in Server Mode
/etc/exports file, The exports File
/etc/fstab file, Mounting the /proc Filesystem, Mounting an NFS Volume
/etc/group file, Getting Acquainted with NIS, Using the passwd and group Maps
/etc/host file, Resolver Robustness
/etc/host.conf file, Resolver Robustness
/etc/hosts file, Writing hosts and networks Files, The Network Information System, Getting Acquainted with NIS
/etc/hosts.allow file, The tcpd Access Control Facility
/etc/hosts.deny file, The tcpd Access Control Facility
/etc/inetd.conf file, Providing UUCP Accounts, Running Exim
/etc/named.boot file, Running named
/etc/networks file, Writing hosts and networks Files, Getting Acquainted with NIS
/etc/news/incoming.conf file (INN), The incoming.conf file
/etc/nntpserver file, tin Configuration
/etc/nsswitch.conf file, Choosing the Right Maps
/etc/passwd file, PPP Server, The inetd Super Server, Getting Acquainted with NIS, Using the passwd and group Maps
real user names, Installation
/etc/ppp/chap-secrets file, PAP Versus CHAP, The CHAP Secrets File
/etc/ppp/options file, Using Options Files, General Security Considerations, PAP Versus CHAP
/etc/ppp/pap-secrets file, PAP Versus CHAP, The PAP Secrets File
/etc/protocols file, The Services and Protocols Files, Getting Acquainted with NIS
/etc/rpc file, Getting Acquainted with NIS
/etc/services file, The Services and Protocols Files, Getting Acquainted with NIS, Running Exim
/etc/shadow file, PPP Server, Using NIS with Shadow Support
/etc/ssh/ssh_config file, The ssh client
/etc/ssh/ssh_host_key file, The ssh daemon
/etc/ssh/ssh_host_key.pub file, The ssh daemon
/etc/yp.conf file, Setting Up an NIS Client with GNU libc
/etc/ypserv.securenets file, NIS Server Security
eth0 (Ethernet interface), Ethernet Interfaces
eth1 device, A Tour of Linux Network Devices
Ethernet
addresses, Ethernets, Address Resolution
versus IP address, The Internet Protocol
autoprobing, Ethernet Autoprobing
Becker drivers, Ethernet Installation
cards, Configuringthe NetworkingHardware
collisions, Ethernets
configurating interface, Ethernet Interfaces
drawbacks, Ethernets
installation, Ethernet Installation
promiscuous mode, All About ifconfig
thick/thin, Ethernets
through parallel port, Ethernet Installation
twisted pair, Ethernets
exchanging
email, How Is Mail Delivered?
news, What Is Usenet, Anyway?
exclamation point (in email address), Obsolete Mail Formats
Exim, Electronic Mail
alias files, Alias Files
check mail queue, Mail Delivery Modes
compiling, Compiling Exim
configuration files, Getting EximUp and Running
options, Miscellaneous config Options
daemon mode, Getting EximUp and Running
delivering messages to local addresses, Delivering Messages to Local Addresses
directing mail to a file, Delivering Messages to Local Addresses
directors, Message Routing and Delivery
feeding mail to a command, Delivering Messages to Local Addresses
filter files, Forwarding
forwarding mail, Forwarding
log files, If Your Mail Doesn't Get Through, Mail Delivery Modes
mail delivery modes, Mail Delivery Modes
mailing lists, Mailing Lists
queuing mail, Mail Delivery Modes
routers, Message Routing and Delivery
routing messages in, Routing Messages
running, Running Exim
symbolic links to, Getting EximUp and Running
transports, Message Routing and Delivery
troubleshooting, If Your Mail Doesn't Get Through
user mailboxes, Local users
utilities, Getting EximUp and Running
UUCP setup, UUCP Setup
expect program, Using chat to Automate Dialing
expire.ctl file (INN), The expire.ctl file
exports file, The exports File
External Data Representation (XDR), Remote Procedure Call

F

FDDI (Fiber Distributed Data Interface), Other Types of Hardware, Other Network Types
FEATURE macro definition, FEATURE
FHS (File Hierarchy Standard), File System Standards
Fiber Distributed Data Interface (FDDI), Other Types of Hardware, Other Network Types
FidoNet, Communications Software for Modem Links
file sharing, The NetworkFile System, IPX and the NCP Filesystem
File System Standard, File System Standards
filter files, Forwarding
filtering
See also masquerade
IP, What Is IP Filtering?
stages of, Three Ways We Can Do Filtering
finger daemon, The inetd Super Server
wrapping via tcpd, The tcpd Access Control Facility
fingerprints, Using ssh
firewalls, Dealing with Private IP Networks, What Is a Firewall?
IP chains, IP Firewall Chains (2.2 Kernels)
restoring/saving, The ipchains support scripts
methods of attack, Methods of Attack
netfilter, Netfilter and IP Tables (2.4 Kernels)
netmask specification, A na�ve example
original IP, Original IP Firewall (2.0 Kernels)
sample configuration, A Sample Firewall Configuration
security, TCP/IP Firewall
TCP/IP, TCP/IP Firewall
testing a configuration, Testing a Firewall Configuration
TOS bit manipulation, TOS Bit Manipulation
user-defined chains, User-defined chains
warning, TCP/IP Firewall
flooding algorithm, How Does Usenet Handle News?
.forward file, Delivering Messages to Local Addresses
forwardfile director, Mailing Lists
forwarding
IP, The Internet Protocol, Kernel Networking Options in Linux 2.0.0 and Higher
mail, Forwarding, Alias Files
FRAD (Frame Relay Access Device), Other Types of Hardware
fragmentation, datagram, Accounting by Service Port
Frampton, Steve, Sources of Information
FSSTND (File System Standard), File System Standards
FTP (File Transfer Protocol), location of Linux code, Where to Get the Code
full user names, Installation

G

gated command, The Routing Table, The PLIP Interface, Routing Through a PPP Link
gateways, The Internet Protocol, Gateways
configuring, Configuring a Gateway
email, Mail Routing on the Internet
routing networks through, Routing Through a Gateway
get command, The get command
gethostbyaddr(), Resolving Host Names, The Resolver Library, Choosing the Right Maps
gethostbyname(), Resolving Host Names, The Resolver Library, Choosing the Right Maps
uucico and, The Inner Workings of uucico
getpwnam(), The Client Side of NIS
getpwuid(), The Client Side of NIS
getservbyname(), Choosing the Right Maps
glue records, The DNS Database
GNU Free Documentation License (FDL), Linux Network Administrator's Guide, Second Edition Copyright Information
GNU libc (NIS support), The Network Information System, Using NIS with Shadow Support
Goldt, Sven, Sources of Information
gov domain, How DNS Works
GPG (GNU Privacy Guard), The control.ctl file
Groucho Marx University (GMU), Introduction to TCP/IP Networks, Subnetworks
group command (NNTP), Selecting a Group on Which to Operate

H

ham radio, Other Types of Hardware, Address Resolution
handshake, hardware, Serial Hardware, The stty Command, Running pppd
Hankins, Greg, Configuring the Serial Hardware
hardware
configuration of networking, Configuringthe NetworkingHardware
configuring serial, Configuring the Serial Hardware
handshake, Serial Hardware, The stty Command, Running pppd
Harper, John D., Sources of Information
Hazel, Philip, About This Book, Electronic Mail
HDB
See Taylor UUCP, HDB
HDLC (High-Level Data Link Control) protocol, The Point-to-Point Protocol
head command (NNTP), Retrieving an Article Header Only
help, online, Online Linux Support
Hesiod addresses, The DNS Database
HoneyDanBer
See Taylor UUCP, HDB
host keys, The ssh daemon
host.conf file, The host.conf File, The Network Information System
hostat command, hoststat
hostcvt program, Other Useful Tools
hostname
aliases, The DNS Database Files
ambiguous, Mail Routing in the UUCP World
canonical, The DNS Database, The DNS Database Files
domain name and, How DNS Works
fully qualified, How DNS Works
lookup, Name Lookups with DNS, Verifying the Name Server Setup
mapping to addresses, Resolving Host Names
obtaining from address, Reverse Lookups
resolution, Resolving Host Names, Writing hosts and networks Files, Name Service and Resolver Configuration, The Network Information System
setting, Setting the Hostname
UUCP, Site Naming
hosts, History
standalone, The Dummy Interface, IP Alias
virtual, IP Alias
hosts file, Writing hosts and networks Files
converting to BIND master files, Other Useful Tools
hosts.byaddr file, Getting Acquainted with NIS
hosts.byname file, Getting Acquainted with NIS
HOWTOs, Sources of Information
AX25, Other Types of Hardware, Kernel Networking Options in Linux 2.0.0 and Higher
electronic mail, Electronic Mail
IPCHAINS, IP Firewall Chains (2.2 Kernels)
IPTABLES, More About Network Address Translation
IPX, NetWare Server Emulation
Networking, Kernel Networking Options in Linux 2.0.0 and Higher
PACKET-FILTERING, Netfilter and IP Tables (2.4 Kernels)
PPP, PPP on Linux
Serial, Configuring the Serial Hardware
UUCP, ManagingTaylor UUCP
hybrid addresses, Mixing Different Mail Formats

I

IBM Token Ring networks, Other Types of Hardware
ICMP (Internet Control Message Protocol)
datagram accounting, Accounting of ICMP Datagrams
datagram types, ICMP datagram types
Port Unreachable message, The Internet Control Message Protocol
Redirect message, The Internet Control Message Protocol
IETF (Internet Engineering Task Force), More on Ports
ifconfig command, Interface Configuration for IP, Ethernet Interfaces, All About ifconfig, SLIP Operation, Passive Collection of Accounting Data
ihave command (NNTP), NNTP and thenntpd Daemon, Pushing a News Article onto a Server, nntpd Interaction with C News
ihave/sendme protocol (news), How Does Usenet Handle News?
in-addr.arpa domain, Reverse Lookups
incoming.conf file (INN), The incoming.conf file
inetd super server, The inetd Super Server, Remote Procedure Call
running Exim under, Running Exim
inetd.conf file, The inetd Super Server
inews command, Delivering News
information on Linux, Sources of Information
initializing networking, Configuring TCP/IP Networking
INN (Internet News), Usenet History
configuration files, INN Configuration Files
configuring
newsfeeds, Configuring Newsfeeds
newsgroups, Configuring Newsgroups
control messages, handling, Handling Control Messages
expiring news articles, Expiring News Articles
global parameters, Global Parameters
ihave protocol, Some INN Internals
installing, Installing INN
managing, Managing INN: The ctlinnd Command
newsreaders, Newsreaders and INN
controlling access, Controlling Newsreader Access
NNTP and, NNTP and thenntpd Daemon, Some INN Internals
rnews, Some INN Internals
running, Running INN
inn source package, Running INN
inn.conf file (INN), The inn.conf file
innd command (INN), Some INN Internals
innxmit command (INN), Some INN Internals, The nntpsend.ctl file
installing
INN (Internet News), Installing INN
network binaries, Installing the Binaries
sendmail, Installing sendmail
interfaces, Networking Interfaces, Configuringthe NetworkingHardware, A Tour of Linux Network Devices
alias, IP Alias
AX.25, A Tour of Linux Network Devices
configuration of, Interface Configuration for IP
configuring IPX, Configuring IPX Interfaces
dummy, The Dummy Interface
Ethernet, A Tour of Linux Network Devices, Ethernet Interfaces
loopback, A Tour of Linux Network Devices, The Loopback Interface
netmask, Subnetworks, Creating Subnets, Ethernet Interfaces, All About ifconfig
PLIP, A Tour of Linux Network Devices, The PLIP Interface
PPP, A Tour of Linux Network Devices, The SLIP and PPP Interfaces, Running pppd
SLIP, A Tour of Linux Network Devices, The SLIP and PPP Interfaces
statistics, displaying, Displaying Interface Statistics
Token Ring, A Tour of Linux Network Devices
internationalization for elm, National Character Sets
Internet, Introduction to TCP/IP Networks
connecting to, Serial Line IP, The Point-to-Point Protocol, Running pppd
daemon, The inetd Super Server
email routing, Mail Routing on the Internet
versus internetworking, The Internet Protocol
Internet Control Message Protocol
See ICMP
Internet Datagram Protocol (IDP), Xerox, Novell, and History
Internet News
See INN (Internet News)
Internet Protocol
See IP
Internet Protocol Control Protocol
See IPCP
internetworking, The Internet Protocol, Gateways
IP (Internet Protocol), The Internet Protocol
addresses, The Internet Protocol, IP Addresses
assigning, Assigning IP Addresses
hostname and, Resolving Host Names, Reverse Lookups
negotiation in PPP, Running pppd, Choosing IP Addresses, The CHAP Secrets File
private, Assigning IP Addresses
versus hostname, The Internet Protocol
alias configuration, IP Alias
aliasing, Kernel Networking Options in Linux 2.0.0 and Higher
broadcast address, Ethernet Interfaces, All About ifconfig
default route, IP Addresses, Routing Through a Gateway
dialup, Serial Line IP, The Point-to-Point Protocol
dynamic routing, The Routing Table
filtering, What Is IP Filtering?
Firewall Chains, IP Firewall Chains (2.2 Kernels)
forwarding, The Internet Protocol, Kernel Networking Options in Linux 2.0.0 and Higher
gateways, The Internet Protocol, Routing Through a Gateway
interface, Configuringthe NetworkingHardware
configuration, Interface Configuration for IP
IPv4, The Internet Protocol
IPv6, Different Streaks of Development
masquerade, IP Masquerade and Network Address Translation
metric, All About ifconfig
values, Metric Values
MTU, Kernel Networking Options in Linux 2.0.0 and Higher
multicast addresses, All About ifconfig
netmask, Subnetworks, Creating Subnets, Ethernet Interfaces, All About ifconfig
Network Control Protocol (PPP), The Point-to-Point Protocol
networks, IP Networks, Reverse Lookups
parallel line
See PLIP (Parallel Line IP) protocol
private addresses, IP Addresses
routing, The Internet Protocol, IP Routing, Kernel Networking Options in Linux 2.0.0 and Higher, Routing Through a Gateway
effect of netmask, The Routing Table
protocols, The Routing Table
Redirect message (ICMP), The Internet Control Message Protocol
table, The Routing Table, Ethernet Interfaces, Displaying the Routing Table
serial line
See SLIP (Serial Line IP) protocol
,
Serial Line IP
,
The Point-to-Point Protocol
source routing, Kernel Networking Options in Linux 2.0.0 and Higher
subnets, Subnetworks, Kernel Networking Options in Linux 2.0.0 and Higher, Routing Through a Gateway, Reverse Lookups
TOS (Type Of Service) bits, TOS Bit Manipulation
IP accounting, Kernel Networking Options in Linux 2.0.0 and Higher
by address, Accounting by Address
configuring, Configuring IP Accounting
flushing the rules, Flushing the Ruleset
of ICMP datagrams, Accounting of ICMP Datagrams
kernel configuration, Configuring the Kernel for IP Accounting
passive collection, Passive Collection of Accounting Data
by protocol, Accounting by Protocol
resetting the counters, Resetting the Counters
by service port, Accounting by Service Port
using results of, Using IP Accounting Results
ipchains command, The ipchains Utility, Using ipchains
configuring IP accounting, Configuring IP Accounting
configuring IP masquerade, Configuring IP Masquerade
firewall options, ipchains Command Syntax
listing accounting data with, Listing Accounting Data with ipchains
listing rules with, Listing Our Rules with ipchains
setting the TOS bits, Setting the TOS Bits Using ipfwadm or ipchains
support scripts, The ipchains support scripts
IPCHAINS-HOWTO, IP Firewall Chains (2.2 Kernels)
ipchains-restore command, The ipchains support scripts
ipchains-save command, The ipchains support scripts
IPCP (Internet Protocol Control Protocol), The Point-to-Point Protocol, IP Configuration Options
ipfwadm command, The ipfwadm Utility, Original IP Firewall (2.0 Kernels)
configuring IP accounting, Configuring IP Accounting
configuring IP masquerade, Configuring IP Masquerade
firewall options, Summary of ipfwadm Arguments
listing accounting data with, Listing Accounting Data with ipfwadm
listing rules with, Listing our rules
setting the TOS bits, Setting the TOS Bits Using ipfwadm or ipchains
ipfwadm-wrapper command, The ipchains Utility, Using ipchains, The ipchains support scripts
iptables command, The iptables Utility
configuring IP accounting, Configuring IP Accounting
configuring IP masquerade, Configuring IP Masquerade
extensions, Extensions
firewall options, Using iptables
listing accounting data with, Listing Accounting Data with iptables
setting the TOS bits, Setting the TOS Bits Using iptables
IPTABLES-HOWTO, More About Network Address Translation
IPv4 (Internet Protocol), The Internet Protocol
IPv6 (Internet Protocol), Different Streaks of Development
IPX (Internet Packet eXchange), The Socket Library, IPX and the NCP Filesystem
interface configuration tools, IPX Interface Configuration Tools
internal networks, Internal IPX Networks and Routing
kernel configuration, Configuring the Kernel for IPXand NCPFS
PPP network protocol, Kernel Options in Linux 2.0 and Higher
routing, Kernel Networking Options in Linux 2.0.0 and Higher, Configuring an IPX Router
tools
nsend, Send Messages to NetWare Users
pqlist, Managing Print Queues
slist, Server List
IPX-HOWTO, NetWare Server Emulation
ipxd command, Configuring an IPX Router
ipx_configure command, The ipx_configure Command
ipx_interface command, The ipx_interface Command
ipx_route command, Static IPX Routing Using the ipx_route Command
IRC Network, OpenProjects, Online Linux Support
IRQ (Interrupt Request), Configuringthe NetworkingHardware, Ethernet Autoprobing
setting, All About ifconfig
irtt parameter, Displaying the Routing Table
ISO-8859-1, National Character Sets

J

jobs (UUCP), UUCP Transfers and Remote Execution
junk newsgroup, Delivering News

K

Kempen, Fred van, Linux Networking
kermit (terminal program), Communications Software for Modem Links
kernel version numbering, Kernel Configuration
kernels
configuration, Kernel Configuration
configured with IP firewall, Setting Up Linux for Firewalling
configuring for IPX and NCPFS, Configuring the Kernel for IPXand NCPFS
configuring for masquerade, Configuring the Kernel for IP Masquerade
NFSv2/NFSv3 server support, Kernel-Based NFSv2 Server Support
key fingerprints, Using ssh
keys
host, The ssh daemon
private, The ssh daemon, The ssh client
public, The ssh daemon, The ssh client
Kirch, Olaf, The NetworkFile System, Kernel-Based NFSv2 Server Support
Kukuk, Thorsten, The Network Information System

L

LANs
See Local Area Networks
Lapsley, Phil, NNTP and thenntpd Daemon
Latin-1 character set, National Character Sets
LCP (Link Control Protocol), The Point-to-Point Protocol
echo messages, Link Control Options
options, Link Control Options
LDP (Linux Documentation Project), Sources of Information
leaf sites, Mail Routing in the UUCP World
leafnode (NNTP cache program), Reading an Article from a Group
Learning Debian GNU/Linux, Documentation Available Commercially
Learning Red Hat Linux, Documentation Available Commercially
Lendecke, Volker, IPX and Linux
libc6 (NIS support), The Network Information System, Using NIS with Shadow Support
Libes, Don, Using chat to Automate Dialing
lilo command, Ethernet Autoprobing
line discipline, Introduction to Serial Devices, SLIP Operation, PPP on Linux
Link Control Protocol
See LCP
Linux
documentation, Documentation Available via FTP
HOWTOs, Sources of Information
networks, Linux Networking
obtaining code for, Obtaining Linux, Where to Get the Code
sources of information on, Sources of Information
Linux distributions, Obtaining Linux
standard base, Standard Linux Base
Linux Documentation Project, Sources of Information
Linux in a Nutshell, Documentation Available Commercially
Linux Journal, Linux Journal and Linux Magazine
Linux kernel
version numbering of, Kernel Configuration
Linux Magazine, Linux Journal and Linux Magazine
Linux Standard Base (LSB), Standard Linux Base
Linux User Groups (LUG), Linux User Groups
linux-kernel mailing list, Linux Mailing Lists
linux-net mailing list, Linux Mailing Lists
linux-ppp mailing list, Linux Mailing Lists
list active command (NNTP), Listing Active Groups
list command (NNTP), Listing Available Groups
listen(), The Socket Library
listgroup command (NNTP), Listing Articles in a Group
lo (loopback interface), The Loopback Interface
local addresses, Delivering Messages to Local Addresses
Local Area Networks (LANs), TCP/IP Networks
connecting, Routing Through a PPP Link
hardware for, Ethernets
news, C News in an NFS Environment
passwords, Using the passwd and group Maps
remote login, Configuring Remote Loginand Execution
local macro definitions, Local macro definitions
localgroups file (/etc/news), Miscellaneous Files
localhost (dummy hostname), The Loopback Interface
local_domains configuration variable, Routing Messages
LOCAL_NET_CONFIG macro definition, Configure mail routing for local hosts, Ruleset Semantics
LOCAL_RULE_0 sendmail ruleset, Ruleset Semantics
LOCAL_RULE_1 sendmail ruleset, Ruleset Semantics
LOCAL_RULE_2 sendmail ruleset, Ruleset Semantics
LOCAL_RULE_3 sendmail ruleset, Ruleset Semantics
lock files and PPP, Using Options Files
Log file (UUCP), Log Files and Debugging
log files, debugging, Log Files and Debugging
login command and NIS maps, Using the passwd and group Maps
looking up addresses, Reverse Lookups
loopback
address, IP Addresses
interface device, A Tour of Linux Network Devices
configuring, The Loopback Interface
lpd (line printer daemon), Using nprint with the Line Printer Daemon
LSB (Linux Standard Base), Standard Linux Base
Lu, H.J., Kernel-Based NFSv2 Server Support
LUG (Linux User Groups), Linux User Groups

M

m4 macro processor, The sendmail.cf and sendmail.mc Files
configuring sendmail options, Configuring sendmail Options
macro definitions, sendmail.mc file, Typically Used sendmail.mc Parameters
mail
See email
Mail Abuse Protection System (MAPS), Protecting Against Mail Spam
Mail Exchanger (DNS record), Mail Routing on the Internet
mail spool, managing, Managing the Mail Spool
mail transport agent (MTA), How Is Mail Delivered?
mail user agent (MUA), How Is Mail Delivered?
mailbox files, Local users
MAILER macro definition, Defining mail transport protocols
mailing lists, Linux Mailing Lists
in Exim, Mailing Lists
mailpaths file (/etc/news), Miscellaneous Files
mailstats command, mailstats
maintenance, system, Maintaining Your System
makedbm program, Running an NIS Server
manual configuration
Ethernet, Ethernet Autoprobing
PLIP, The PLIP Driver
maps, Usenet, Mail Routing in the UUCP World, Mixing UUCP and RFC-822
Marx, Groucho, Introduction to TCP/IP Networks
masquerade
configuration, Configuring IP Masquerade
how it works, IP Masquerade and Network Address Translation
kernel configuration, Configuring the Kernel for IP Masquerade
listing rules, Configuring IP Masquerade
name server lookups, Handling Name Server Lookups
setting timing parameters for, Setting Timing Parameters for IP Masquerade
side effects of, Side Effects and Fringe Benefits
master servers, Getting Acquainted with NIS, Running an NIS Server
Maximum Receive Unit (MRU), Link Control Options
Maximum Transfer Unit (MTU), Networking Interfaces, Link Control Options
Maximum Transmission Unit (MTU), All About ifconfig
IP, Kernel Networking Options in Linux 2.0.0 and Higher
Meer, Sven van der, Sources of Information
messages, email, What Is a Mail Message?
metric values (for routing table entries), Metric Values
mgetty program, Providing UUCP Accounts
Middelink, Pauline, Original IP Firewall (2.0 Kernels)
mil domain, How DNS Works
MIME (Multipurpose Internet Mail Extensions), What Is a Mail Message?
format, National Character Sets
minicom (terminal program), Communications Software for Modem Links
modems
demand dialing, Demand Dialing
links
communication software for, Communications Software for Modem Links
configuring via dip, The modem commands
persistent dialing, Persistent Dialing
Morris, G. Allan, Kernel-Based NFSv2 Server Support
mount command, The NetworkFile System
mountd daemon, The exports File
mounting
an NFS volume, Mounting an NFS Volume
the proc filesystem, Mounting the /proc Filesystem
MRU (Maximum Receive Unit), Link Control Options
mthreads program, trn Configuration
multimedia mail, Electronic Mail
MX (DNS record), The DNS Database Files, Mail Routing on the Internet
Myklebust, Trond, Kernel-Based NFSv2 Server Support

N

name lookups
via DNS, Name Lookups with DNS
name servers, Name Lookups with DNS
authoritative, Types of Name Servers, The DNS Database, Reverse Lookups
cache, The named.boot File
caching-only, Types of Name Servers, Caching-only named Configuration, Running pppd
checking, Verifying the Name Server Setup
configuring, Running named
for IP masquerade, Handling Name Server Lookups
lookups, Configuring Name Server Lookups Using resolv.conf
primary, Types of Name Servers, The named.boot File
root, Writing the Master Files, Verifying the Name Server Setup
secondary, Types of Name Servers, The named.boot File
slave, The named.boot File
synchronizing, Types of Name Servers
name service configuration, Name Service and Resolver Configuration
named.boot file, The named.boot File
named.conf file, The BIND 8 host.conf File
named program, Name Service and Resolver Configuration, Running named
named-bootconf.pl command, The BIND 8 host.conf File
namespace (DNS), How DNS Works
NAT (Network Address Translation), IP Masquerade and Network Address Translation, More About Network Address Translation
national character sets in elm, National Character Sets
NCP (Network Control Protocol), The Point-to-Point Protocol
NCPFS (NetWare Core Protocol Filesystem), IPX and the NCP Filesystem
kernel configuration, Configuring the Kernel for IPXand NCPFS
mounting volume on, Mounting a Remote NetWare Volume
~/.nwclient file, A More Complex ncpmount Example
server emulation, NetWare Server Emulation
ncpmount command
command-line arguments, The ncpmount Command in Detail
complex example, A More Complex ncpmount Example
simple example, A Simple ncpmount Example
NCSA telnet, The PLIP Driver
net domain, How DNS Works
Net-1 network version, Linux Networking
Net-2d network version, Linux Networking
Net-2Debugged network version, Linux Networking
Net-2e network version, Different Streaks of Development
Net-3 network version, Linux Networking, Where to Get the Code
Net-4 network version, Linux Networking
netfilter
IP tables and, Netfilter and IP Tables (2.4 Kernels)
kernel modules, Backward Compatability with ipfwadmand ipchains
Netnews
See news (network); Usenet
NetRom protocol, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher
netstat command, Ethernet Interfaces, The netstat Command
displaying connections, Displaying Connections
NetWare, IPX and the NCP Filesystem
print queue, printing to, Printing to a NetWare Print Queue
NetWare Core Protocol (NCP), Xerox, Novell, and History
NetWare Directory Service (NDS), More on NDS Support
Network File System
See NFS
Network Information System
See NIS
network news
See news (network)
Network News Transfer Protocol
See NNTP
Network Unreachable error message, The Loopback Interface
Networking HOWTO, Kernel Networking Options in Linux 2.0.0 and Higher
networks, A Tour of Linux Network Devices
ARPANET, Introduction to TCP/IP Networks
booting, Configuring TCP/IP Networking
connections
See networks, ports
corporate, Introduction to TCP/IP Networks
devices, Configuringthe NetworkingHardware
display connections, Displaying Connections
Ethernet, Ethernets, Ethernet Installation
hardware, configuring, Configuringthe NetworkingHardware
initialization scripts, The Loopback Interface
interconnecting
See internetworking
,
The Internet Protocol
interfaces
See interfaces
Internet, Introduction to TCP/IP Networks
introduction to, History
IP address, Assigning IP Addresses
kernel options, Kernel Options in Linux 2.0 and Higher
Linux, Linux Networking
Local Area, TCP/IP Networks
names of, Writing hosts and networks Files
packet-switched, TCP/IP Networks
passwords, Using the passwd and group Maps
ports, The Transmission Control Protocol
private, Dealing with Private IP Networks
programming interfaces, The Socket Library
protocols, History
services
See ports
,
More on Ports
synchronizing passwords, The Network Information System
TCP/IP
See TCP/IP
,
TCP/IP Networks
,
Issues of TCP/IP Networking
thinnet, Ethernets
Token Ring, Other Types of Hardware
unreachable, The Loopback Interface
UUCP
See UUCP
,
UUCP Networks
networks file, Writing hosts and networks Files
Neuling, Michael, IP Firewall Chains (2.2 Kernels)
newgroup control message, newgroup and rmgroup
newnews command (NNTP), NNTP and thenntpd Daemon, Listing New Articles
news (network), Usenet History
active file, How Does Usenet Handle News?, Delivering News
adding new groups, newgroup and rmgroup
archiving articles, Expiring News
articles, What Is Usenet, Anyway?
batching, Article Batching
expiring, Expiring News Articles
listing, Listing New Articles
posting, Posting an Article
pushing news, Pushing a News Article onto a Server
retrieving headers/message body, Retrieving an Article Header Only
batching, How Does Usenet Handle News?, Delivering News
C release
See C News
cancel article, The cancel Message
control messages, Control Messages
deleting old news, How Does Usenet Handle News?
distribution, How Does Usenet Handle News?, The sys File
exchanging, What Is Usenet, Anyway?, How Does Usenet Handle News?
expiration of, How Does Usenet Handle News?, Expiring News, trn Configuration, nn Configuration
faking, NNTP and thenntpd Daemon
feeding, What Is Usenet, Anyway?, How Does Usenet Handle News?
flooding algorithm, How Does Usenet Handle News?
follow-up, Newsreader Configuration
groups, What Is Usenet, Anyway?
history, How Does Usenet Handle News?, Delivering News
ihave/sendme, How Does Usenet Handle News?
Internet News, Usenet History
limiting a feed, How Does Usenet Handle News?
message IDs, How Does Usenet Handle News?, Delivering News
newsmaster, Installation
NNTP, Usenet History, How Does Usenet Handle News?
pulling, How Does Usenet Handle News?, NNTP and thenntpd Daemon
pushing, How Does Usenet Handle News?, NNTP and thenntpd Daemon
receiving, The sys File
removing old groups, newgroup and rmgroup
spool, How Does Usenet Handle News?
updating active files, The checkgroups Message
Usenet, What Is Usenet, Anyway?
news (Usenet)
See news (network); Usenet
news faking, NNTP and thenntpd Daemon
news feeds, How Does Usenet Handle News?
news, C
See C News
newsfeeds file (INN), Some INN Internals, The newsfeeds file
newsfeeds, configuring, Configuring Newsfeeds
newsgroups, What Is Usenet, Anyway?
comp.mail.uucp, ManagingTaylor UUCP
comp.protocols.ppp, PPP on Linux
comp.protocols.tcp-ip.domains, Name Service and Resolver Configuration
configuring, Configuring Newsgroups
creating, newgroup and rmgroup
deleting, newgroup and rmgroup
file (/etc/news), Miscellaneous Files
listing, Listing Available Groups
listing articles, Listing Articles in a Group
selecting, Selecting a Group on Which to Operate
Usenet, Linux Usenet Newsgroups
newsgroups file (INN), The active and newsgroups files
newsmaster, Installation
newsreaders
changing to NNRP reader mode, Changing to NNRP Reader Mode
configuring, Newsreader Configuration
controlling access, Controlling Newsreader Access
creating thread databases, trn Configuration, nn Configuration
INN (Internet News) and, Newsreaders and INN
nn, nn Configuration
tass, tin Configuration
threading, Newsreader Configuration
tin, tin Configuration
trn, trn Configuration
newsrun command, Delivering News
NFS (Network File System), The NetworkFile System
C News in, C News in an NFS Environment
daemons, The NFS Daemons
exporting a volume, The exports File
exports file, The exports File
hard-mounting versus soft-mounting, Mounting an NFS Volume
kernel-based server support, Kernel-Based NFSv2 Server Support
matching uids and gids, The NFS Daemons, The exports File
mounting volume on, The NetworkFile System, Mounting an NFS Volume
restricting block size, Mounting an NFS Volume
timeout, Mounting an NFS Volume
via TCP/IP, Introduction to TCP/IP Networks
nfsd daemon, The NetworkFile System
NFSv2/NFSv3 server support, Kernel-Based NFSv2 Server Support
NIS (Network Information System), Resolving Host Names, The Network Information System
clients, The Client Side of NIS, Setting Up an NIS Client with GNU libc
creating maps, Running an NIS Server
databases, Getting Acquainted with NIS
domains, Getting Acquainted with NIS, Setting Up an NIS Client with GNU libc
GNU libc, The Network Information System, Setting Up an NIS Client with GNU libc
locating servers, Getting Acquainted with NIS
maps, Getting Acquainted with NIS
nicknames, Getting Acquainted with NIS
passwd maps, Using the passwd and group Maps
resolver and, The host.conf File, The nsswitch.conf File
securenets option, NIS Server Security
security, Getting Acquainted with NIS, NIS Server Security
servers, Getting Acquainted with NIS
shadow passwords and, Using NIS with Shadow Support
NIS+, NIS Versus NIS+
nn newsreader, configuration, nn Configuration
nnrp.access file (INN), The nnrp.access file
nnrpd command (INN), Newsreaders and INN, The nnrp.access file
NNTP (Network News Transfer Protocol), Usenet History, NNTP and thenntpd Daemon
article command, Reading an Article from a Group
authorization, NNTP Authorization
body command, Retrieving an Article Body Only
C News and, nntpd Interaction with C News
changing to NNRP reader mode, Changing to NNRP Reader Mode
connecting to a news server, Connecting to the News Server
group command, Selecting a Group on Which to Operate
head command, Retrieving an Article Header Only
ihave command, NNTP and thenntpd Daemon, Pushing a News Article onto a Server, nntpd Interaction with C News
INN (Internet News) and, Some INN Internals
leafnode, Reading an Article from a Group
list active command, Listing Active Groups
list command, Listing Available Groups
listgroup command, Listing Articles in a Group
listing groups, Listing Available Groups
newnews command, NNTP and thenntpd Daemon, Listing New Articles
post command, Posting an Article
restricting access in, Restricting NNTP Access, NNTP Authorization
nntpd, Usenet History
components, NNTP and thenntpd Daemon
installing the server, Installing the NNTP Server
nntpsend.ctl file (INN), The nntpsend.ctl file
NNTPSERVER environment variables, tin Configuration
nntp_access file, Restricting NNTP Access
Noorda, Ray, Caldera Support
Novell Corporation, IPX and the NCP Filesystem
nprint command, Printing to a NetWare Print Queue
using lpd (line printer daemon), Using nprint with the Line Printer Daemon
nsend command, Send Messages to NetWare Users
nslint program, Other Useful Tools
nslookup program, Verifying the Name Server Setup
nsswitch.conf file, The nsswitch.conf File
action statements, The nsswitch.conf File
NYS, The Network Information System

O

octets, IP Addresses
Oja, Joanna, Sources of Information
online help, Online Linux Support
Open Source Writers Guild, Documentation Available via WWW
OpenProjects IRC network, Online Linux Support
org domain, How DNS Works
OSPF (Open Shortest Path First) protocol, Kernel Networking Options in Linux 2.0.0 and Higher
OSTYPE macro definition, VERSIONID and OSTYPE
OSWG (Open Source Writers Guild), Documentation Available via WWW

P

packet radio, Other Types of Hardware
PACKET-FILTERING-HOWTO, Netfilter and IP Tables (2.4 Kernels)
packet-switched networks, TCP/IP Networks
PAD (Packet Assembler Disassembler), Other Types of Hardware
Page, Greg, IPX and Linux
PAP (Password Authentication Protocol), The Point-to-Point Protocol, Authentication with PPP
Parallel Line IP
See PLIP (Parallel Line IP) protocol
parallel port
Ethernet, Ethernet Installation
IP, The PLIP Driver
Password Authentication Protocol
See PAP
passwords
hiding NetWare, Hiding Your NetWare Login Password
network-wide, Using the passwd and group Maps
remote login and, Configuring Remote Loginand Execution
pathalias command, Mixing UUCP and RFC-822
pathalias database, Mail Routing in the UUCP World
paths file, Mail Routing in the UUCP World, Mixing UUCP and RFC-822
PC/TCP compatibility, Kernel Networking Options in Linux 2.0.0 and Higher
percent sign (in email address), Mixing Different Mail Formats
persistent dialing, Persistent Dialing
PGP (Pretty Good Privacy), The control.ctl file
ping command, The Loopback Interface
ping flooding, Accounting of ICMP Datagrams
PLIP (Parallel Line IP) protocol
driver, The PLIP Driver, The PPP and SLIP Drivers
interface, The PLIP Interface
null printer cable for, A PLIP Parallel Cable
routing, Checking the ARP Tables
plip1 device, A Tour of Linux Network Devices
plipconfig command, The PLIP Interface
point-to-point link, The PLIP Interface, The SLIP and PPP Interfaces, All About ifconfig, Checking the ARP Tables, The Point-to-Point Protocol
Point-to-Point Protocol
See PPP
Pomerantz, Ori, Sources of Information
portmap daemon, Remote Procedure Call
portmapper daemon, Remote Procedure Call
ports, The Transmission Control Protocol
COM, The Serial Device Special Files
post command (NNTP), Posting an Article
PPP (Point-to-Point Protocol), IP Over Serial Lines, Communications Software for Modem Links, The SLIP and PPP Interfaces, General Requirements, The Point-to-Point Protocol
advanced configurations, More Advanced PPP Configurations
async map, Link Control Options
authentication, Authentication with PPP
carrying IPX, Kernel Options in Linux 2.0 and Higher
chat script, Using chat to Automate Dialing
compressing data, The Point-to-Point Protocol, Link Control Options
configuring demand dialing for, Demand Dialing
configuring persistent dialing for, Persistent Dialing
configuring server in, PPP Server
daemon, PPP on Linux
debugging setup of, Debugging Your PPP Setup
default route, Running pppd
driver, PPP on Linux
dynamic address assignment, Choosing IP Addresses
escaping control characters, Link Control Options
IP addresses, Running pppd, Choosing IP Addresses
lock files, Using Options Files
Maximum Receive Unit, Link Control Options
null modem cable for, A Serial NULL Modem Cable
option files, Using Options Files
proxy ARP, Routing Through a PPP Link
routing, Checking the ARP Tables, Routing Through a PPP Link
secrets files, The CHAP Secrets File
security, General Security Considerations
using CHAP, Authentication with PPP, The CHAP Secrets File
using PAP, Authentication with PPP, The PAP Secrets File
PPP-HOWTO, PPP on Linux
ppp0 (PPP interface), The SLIP and PPP Interfaces
ppp1 device, A Tour of Linux Network Devices
pppd (kernel PPP module), PPP on Linux, Running pppd, General Security Considerations
.ppprc file, Using Options Files
pqlist command, Managing Print Queues
pqstat command, Managing Print Queues
primary option (BIND), The named.boot File
print command, The print command
print queues, NetWare, Printing to a NetWare Print Queue
private IP addresses, Assigning IP Addresses
private keys, The ssh daemon, The ssh client
proc filesystem, mounting, Mounting the /proc Filesystem
/proc/filesystems file, Preparing NFS
/proc/kmsg file, Debugging Your PPP Setup
/proc/net file, Mounting the /proc Filesystem
/proc/net/ipx_route file, Static IPX Routing Using the ipx_route Command
protocol numbers, The Services and Protocols Files
protocols, History
ATM (Asynchronous Transfer Mode), Other Types of Hardware, The Socket Library
AX.25, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher, A Tour of Linux Network Devices
CSLIP, IP Over Serial Lines
Ethernet, Ethernets
Frame Relay, Other Types of Hardware
ICMP, The Internet Control Message Protocol
Internet (IP), The Internet Protocol
Internet Datagram Protocol (IDP), Xerox, Novell, and History
Internet Packet eXchange (IPX), The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher, IPX and the NCP Filesystem
mapping XNS, Novell, and TCP/IP, Xerox, Novell, and History
NetRom, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher
NetWare Core Protocol (NCP), Xerox, Novell, and History
NNTP, NNTP and thenntpd Daemon
OSPF, Kernel Networking Options in Linux 2.0.0 and Higher
PLIP, The PLIP Driver
PPP, IP Over Serial Lines, Communications Software for Modem Links
Rose, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher
Routing Information Protocol (RIP), Kernel Networking Options in Linux 2.0.0 and Higher, Configuring an IPX Router
Sequenced Packet eXchange (SPX), Xerox, Novell, and History
Sequenced Packet Protocol (SPP), Xerox, Novell, and History
Service Advertisement Protocol (SAP), Xerox, Novell, and History, Configuring an IPX Router
SLIP, IP Over Serial Lines, Communications Software for Modem Links, SLIP Operation
SMTP, How Is Mail Delivered?
TCP, The Transmission Control Protocol
token-passing, Other Types of Hardware
UDP, The User Datagram Protocol
UUCP, Protocol Overview
X.25, Other Types of Hardware, The Socket Library
XNS, The Socket Library
protocols file, The Services and Protocols Files
proxy ARP, The PLIP Interface, Checking the ARP Tables, Routing Through a PPP Link
PTR (DNS record), The DNS Database Files
public keys, The ssh daemon, The ssh client
pulling news, NNTP and thenntpd Daemon
pushing news, NNTP and thenntpd Daemon, Pushing a News Article onto a Server

Q

queuing mail, Mail Delivery Modes

R

RARP (Reverse Address Resolution Protocol), Address Resolution, Kernel Networking Options in Linux 2.0.0 and Higher
rc script, Configuring TCP/IP Networking
rcp command, Configuring Remote Loginand Execution
reaching a host, The Loopback Interface
real user names, Installation
Real-time Blackhole List (RBL), The Real-time Blackhole List, Protecting Against Mail Spam
receiving news, The sys File
RedHat (Linux distribution), Obtaining Linux
relaynews command, Delivering News
remote
command execution, Configuring Remote Loginand Execution
execution, How Is Mail Delivered?
file access, Configuring Remote Loginand Execution, The NetworkFile System, IPX and the NCP Filesystem
filesystem, Mounting an NFS Volume
login, Introduction to TCP/IP Networks, The Transmission Control Protocol, Configuring Remote Loginand Execution
via TCP/IP, Introduction to TCP/IP Networks
X Windows session, Introduction to TCP/IP Networks
Remote Procedure Call
See RPC
repeaters, Ethernets
resolv.conf file, Configuring Name Server Lookups Using resolv.conf, Caching-only named Configuration
resolvers
configuring, The host.conf File
environment variables, Resolver environment variables
library, The Resolver Library
robustness, Resolver Robustness
using a name server, The host.conf File, The nsswitch.conf File
using NIS, The host.conf File, The nsswitch.conf File
RESOLV_ADD_TRIM_DOMAINS environment variable, Resolver environment variables
RESOLV_HOST_CONF environment variable, Resolver environment variables
RESOLV_MULTI environment variable, Resolver environment variables
RESOLV_OVERRIDE_TRIM_DOMAINS environment variable, Resolver environment variables
RESOLV_SERV_ORDER environment variable, Resolver environment variables
RESOLV_SPOOF_CHECK environment variable, Resolver environment variables
resource record (RR), The DNS Database Files
restricting access to services, The tcpd Access Control Facility
Reverse Address Resolution Protocol
See RARP
reverse mapping, Reverse Lookups
rewrite rules (sendmail), Interpreting and Writing Rewrite Rules
RFC-1036, The control.ctl file
RFC-1123, Mail Routing on the Internet
RFC-1341, What Is a Mail Message?
RFC-1700, ICMP datagram types
RFC-793, TCP Extensions: used with -m tcp -p tcp
RFC-821, How Is Mail Delivered?, Mail Routing on the Internet
RFC-822, Electronic Mail, What Is a Mail Message?, RFC-822, Obsolete Mail Formats
names, Mixing UUCP and RFC-822
RFC-974, Mail Routing on the Internet
RIP (Routing Information Protocol), The Routing Table, Kernel Networking Options in Linux 2.0.0 and Higher, The PLIP Interface, All About ifconfig
rlogin command, Configuring Remote Loginand Execution
rmail command, Command Execution
rmgroup control message, newgroup and rmgroup
rnews command, Command Execution, Delivering News, Article Batching
root domain, How DNS Works
Rose protocol, Other Types of Hardware, The Socket Library, Kernel Networking Options in Linux 2.0.0 and Higher
round-trip time (IP), The Loopback Interface
route command, Interface Configuration for IP, Ethernet Interfaces, The PLIP Interface, SLIP Operation
route, default, IP Addresses, Routing Through a Gateway, Running pppd
routed command, The Routing Table
routers, Ethernets
routing
daemon, The Routing Table
dynamic, The Routing Table, The Internet Control Message Protocol, The PLIP Interface, Checking the ARP Tables, Routing Through a PPP Link
email
See email, routing
ICMP Redirect, The Internet Control Message Protocol
IP, IP Routing
datagrams
See IP, routing
gateways, Routing Through a Gateway
IPX (Internet Packet eXchange), Configuring an IPX Router
metric, Metric Values, All About ifconfig
over PPP, Routing Through a PPP Link
protocols, The Routing Table
proxy ARP, Checking the ARP Tables
smart host, Mail Routing in the UUCP World
Routing Information Protocol (RIP), The Routing Table, Kernel Networking Options in Linux 2.0.0 and Higher, The PLIP Interface, All About ifconfig, Configuring an IPX Router
routing table, The Routing Table
displaying via netstat, Displaying the Routing Table
RPC (Remote Procedure Call), Remote Procedure Call
mapping ports to programs, Remote Procedure Call
program numbers, Remote Procedure Call
rpc file, Remote Procedure Call
rpc.mountd daemon, The NFS Daemons
rpc.nfsd daemon, The NetworkFile System, The NFS Daemons
rpc.portmap daemon, Remote Procedure Call
rpcinfo command, Setting Up an NIS Client with GNU libc
RR (resource record), The DNS Database Files
RS-232 serial interface, Serial Hardware
rsh command, Configuring Remote Loginand Execution
rsmtp
command, Command Execution
program, How Is Mail Delivered?
RTS/CTS (Ready to Send/Clear to Send), Serial Hardware
ruleset semantics (sendmail), Ruleset Semantics
Running Linux, Documentation Available Commercially
Rusling, David A., Sources of Information
Russell, Paul, IP Firewall Chains (2.2 Kernels)

S

SAGE (System Administrator's Guild), SAGE: The SystemAdministrators Guild
Salz, Rich, NNTP and thenntpd Daemon
scp command, Configuring Remote Loginand Execution, The ssh client, Using ssh
secondary option (BIND), The named.boot File
securenets option, NIS Server Security
security, Running in Server Mode
Ethernet, All About ifconfig
false hostnames, The host.conf File
filtering, What Is IP Filtering?
firewalls, TCP/IP Firewall
methods of attack, Methods of Attack
network, TCP/IP Firewall
PPP, Using chat to Automate Dialing
remote login, Configuring Remote Loginand Execution
SLIP, Using dip
spoofing, The host.conf File
system, System Security
TCP servers, The inetd Super Server, The tcpd Access Control Facility
using NIS, NIS Server Security
using PPP, General Security Considerations
UUCP, Controlling Access to UUCP Features
sed command (UNIX), Installation
sendbatches command, Article Batching
sendmail, Electronic Mail, Sendmail
access database, The access database
analyzing mail statistics, Analyzing Mail Statistics
configuration files, Overview of Configuration Files
hostat command, hoststat
important configurations, Some Useful sendmail Configurations
installing, Installing sendmail
m4 options, Configuring sendmail Options
mailstats command, mailstats
managaing email aliases, Managing Mail Aliases
management tools, Tips and Tricks
managing the mail spool, Managing the Mail Spool
options, configuring, Configuring sendmail Options
processing mail queues, Forcing a Remote Host to Process its Mail Queue
rewrite rules, Interpreting and Writing Rewrite Rules
ruleset semantics, Ruleset Semantics
running, Running sendmail
smart host configurations, Using a Smart Host
testing the configuration, Testing Your Configuration
virtual email hosting, Configuring Virtual Email Hosting
virtusertable feature, Forwarding virtual-hosted mail to other destinations
sendmail.cf file, Introduction to sendmail, The sendmail.cf and sendmail.mc Files
configuring sendmail options, Configuring sendmail Options
generating, Generating the sendmail.cf File
R and S commands, sendmail.cf R and S Commands
sendmail.df file, The sendmail.cf and sendmail.mc Files
sendmail.mc file, The sendmail.cf and sendmail.mc Files
parameters, Typically Used sendmail.mc Parameters
two examples, Two Example sendmail.mc Files
.Sequence file, Be Paranoid: Call Sequence Checks
Sequenced Packet eXchange (SPX), Xerox, Novell, and History
Sequenced Packet Protocol (SPP), Xerox, Novell, and History
serial devices
accessing, Accessing Serial Devices
configuring, Configuring the Serial Hardware
serial line
device file, Accessing Serial Devices
hardware handshake, Serial Hardware, The stty Command
protecting characters, Link Control Options
Serial Line Internet protocols
See also SLIP; PPP
serial line IP
See SLIP; PPP
servers
inetd, The inetd Super Server
kernel-based support, Kernel-Based NFSv2 Server Support
master, Getting Acquainted with NIS, Running an NIS Server
nfsd daemon, The NetworkFile System
NIS, Getting Acquainted with NIS
NNTP, NNTP and thenntpd Daemon
rpc.nfsd daemon, The NetworkFile System
slave, Getting Acquainted with NIS, Running an NIS Server
tcpd daemon wrapper, The tcpd Access Control Facility
UUCP, Setting Up Your System for Dialing In
ypserv command, Getting Acquainted with NIS
Service Advertisement Protocol (SAP), Xerox, Novell, and History, Configuring an IPX Router
services, More on Ports
port numbers and, More on Ports
restricting access to, System Security, The tcpd Access Control Facility
setting up, The inetd Super Server
well-known, More on Ports, The Services and Protocols Files
services file, The Services and Protocols Files
services.byname map, Choosing the Right Maps
setnewsids (C News), C News
setserial command, The setserial Command
setting
domain name, Setting the Hostname
hostname, Setting the Hostname
IRQ, All About ifconfig
NIS domain, Getting Acquainted with NIS, Setting Up an NIS Client with GNU libc
shadow passwords and NIS, Using NIS with Shadow Support
Simple Mail Transfer Protocol (SMTP)
See SMTP
sites, History
leaf, Mail Routing in the UUCP World
Skahan, Vince, About This Book
sl0 (SLIP interface), The SLIP and PPP Interfaces
sl1 device, A Tour of Linux Network Devices
Slackware (Linux distribution), Obtaining Linux
slattach program, SLIP Operation
slave servers, Getting Acquainted with NIS, Running an NIS Server
SLIP (Serial Line IP) protocol, IP Over Serial Lines, Communications Software for Modem Links, General Requirements
driver, The PPP and SLIP Drivers
interface, The SLIP and PPP Interfaces
let users initiate, Using dip
null modem cable for, A Serial NULL Modem Cable
operation, SLIP Operation
routing, Checking the ARP Tables
SLIPDISC (line discipline), SLIP Operation
sliplogin program, Running in Server Mode
slist command, Server List
slogin command, Configuring Remote Loginand Execution, The ssh client, Using ssh
smart host configurations, Using a Smart Host
smart host routing, Mail Routing in the UUCP World
SMART_HOST macro, Using a Smart Host
SMTP (Simple Mail Transfer Protocol), How Is Mail Delivered?
batched, Command Execution, How Is Mail Delivered?
service, Running Exim
SOA (DNS record), The DNS Database, The DNS Database Files
sockets, The Socket Library
source routing, Kernel Networking Options in Linux 2.0.0 and Higher
source-routed address, Mixing Different Mail Formats
spamming, Managing Unwanted or Unsolicited Mail (Spam), Protecting Against Mail Spam
Spencer, Henry, Usenet History
spoofing
attacks, Methods of Attack
preventing, The host.conf File
spool directory, UUCP Transfers and Remote Execution
spooling, UUCP Transfers and Remote Execution
ssh command, Configuring Remote Loginand Execution
clients, The ssh client
configuring, Installing and Configuring ssh
running clients, Using ssh
sshd daemon, The ssh daemon
ssh tools, System Security
ssh-keygen utility, The ssh daemon, The ssh client
.ssh/authorized_keys file, Using ssh
sshd daemon, The ssh daemon
standalone host, The Dummy Interface, IP Alias
standards, filesystem, File System Standards
Start of Authority, The DNS Database
Storm, Kim F., nn Configuration
Stover, Martin, IPX and Linux, NetWare Server Emulation
stty command, The stty Command
subdomains, How DNS Works
DNS, How DNS Works, Reverse Lookups
subnets
DNS, creating, Creating Subnets
IP, Subnetworks, Kernel Networking Options in Linux 2.0.0 and Higher
sudo command, Using dip
support, online, Online Linux Support
SuSE (Linux distribution), Obtaining Linux
synchronizing name servers, Types of Name Servers
sys file (/etc/news), The sys File
syslog, Debugging Your PPP Setup, The tcpd Access Control Facility, The exports File
system maintenance, Maintaining Your System
system security, System Security

T

tass newsreader, tin Configuration
Taylor UUCP, ManagingTaylor UUCP
accounts, Providing UUCP Accounts
alternates, Alternates
anonymous, Anonymous UUCP
call sequence check, The Inner Workings of uucico, Be Paranoid: Call Sequence Checks
call time, Restricting call times
calling in, Setting Up Your System for Dialing In
calling out, uucico Command-line Options
chat scripts, The login chat
checking, Taylor Configuration Files
command execution, Command Execution
configuration files, UUCP Configuration Files, General Configuration Options Using the config File
configure as server, Setting Up Your System for Dialing In
device, port and speed, Identifying Available Devices Through the port File
dial file, How to Dial a Number Using the dial File
dialcode file, Telephone number
direct lines, Using a Direct Connection
file transfer, File Transfers
forwarding, Forwarding
handshake, The Inner Workings of uucico
HDB, Log Files and Debugging
hostname, Site Naming, General Configuration Options Using the config File
job, UUCP Transfers and Remote Execution
logging and debugging, uucico Command-line Options, Log Files and Debugging
logging in, What UUCP Needs to Know, The login chat
login chat, The login chat
login security, Protecting Yourself Against Swindlers
mail, Command Execution
Mapping Project, Site Naming
master, The Inner Workings of uucico
modem, Identifying Available Devices Through the port File, How to Dial a Number Using the dial File
news, Command Execution
over TCP/IP, UUCP Over TCP
passwd file, Providing UUCP Accounts
phone number, Telephone number
port file, Identifying Available Devices Through the port File
priorities, UUCP Transfers and Remote Execution, Restricting call times
protocols, The Inner Workings of uucico
tuning, Tuning the Transmission Protocol
remote system, How to Tell UUCP About Other Systems Using the sys File, System name
restrict
call time, Restricting call times
command execution, Command Execution
file transfer, File Transfers
forwarding, Forwarding
retry interval, Restricting call times
set up logins, Providing UUCP Accounts
slave, The Inner Workings of uucico
spool directory, UUCP Transfers and Remote Execution
spool grade, UUCP Transfers and Remote Execution, Restricting call times
statistics, Log Files and Debugging
sys file, How to Tell UUCP About Other Systems Using the sys File
uucico, The Inner Workings of uucico
Taylor, Ian, ManagingTaylor UUCP
TCP (Transmission Control Protocol), The Transmission Control Protocol
UUCP, UUCP Over TCP
wrapper program, The tcpd Access Control Facility
TCP/IP (Transmission Control Protocol/Internet Protocol)
accounting, IP Accounting
compressing packets, SLIP Operation, The Point-to-Point Protocol
configuring networks, Configuring TCP/IP Networking
firewalls, TCP/IP Firewall
networks, TCP/IP Networks, Issues of TCP/IP Networking
tcpd daemon wrapper, The tcpd Access Control Facility
telephones
demand dialing, Demand Dialing
persistent dialing, Persistent Dialing
sending data over, IP Over Serial Lines, Serial Line IP, The Point-to-Point Protocol
terminal programs, Communications Software for Modem Links
testing
network configuration, The Loopback Interface, Ethernet Interfaces
sendmail configuration, Testing Your Configuration
TFTP (Trivial File Transfer Protocol), System Security, The inetd Super Server
thinnet, Ethernets
Th�mmler, Swen, The Network Information System
tin newsreader, configuration, tin Configuration
TNC (Terminal Node Controller), Other Types of Hardware
Token Ring
ARP and, Address Resolution
driver, Other Network Types
networks, Other Types of Hardware
TOS (Type Of Service) bits, manipulating, TOS Bit Manipulation
tr0 device, A Tour of Linux Network Devices
Transmission Control Protocol
See TCP
Tridgell, Andrew, Linux Networking
tripwire command, System Security
Trivial File Transfer Protocol
See TFTP
trn newsreader, configuration, trn Configuration
T'so, Theodore, The setserial Command
ttys, Introduction to Serial Devices
line discipline, Introduction to Serial Devices, SLIP Operation, PPP on Linux

U

UART, Serial Hardware
UDP (User Datagram Protocol), The User Datagram Protocol
Unix-to-Unix Copy
See UUCP
unsolicited mail, managing, Managing Unwanted or Unsolicited Mail (Spam), Protecting Against Mail Spam
Urlichs, Matthias, Different Streaks of Development
Usenet, Netnews
map files, Mixing UUCP and RFC-822
maps, Mail Routing in the UUCP World
USENIX Association, SAGE, SAGE: The SystemAdministrators Guild
User Datagram Protocol (UDP), The User Datagram Protocol
user groups, Linux User Groups
/usr/lib/uucp/passwd file, Providing UUCP Accounts
uucico command, ManagingTaylor UUCP, The Inner Workings of uucico
command-line options, uucico Command-line Options
UUCP, Communications Software for Modem Links
anonymous, Anonymous UUCP
checking, Troubleshooting
email routing, Mail Routing in the UUCP World
Exim interface to, UUCP Setup
jobs, UUCP Transfers and Remote Execution
mail, How Is Mail Delivered?
map files, Mixing UUCP and RFC-822
Mapping Project, Mail Routing in the UUCP World
networks, UUCP Networks
news, Delivering News
protocols, UUCP Low-Level Protocols
selection, Selecting Specific Protocols
security, Protecting Yourself Against Swindlers
Taylor
See Taylor UUCP
troubleshooting, Troubleshooting
uucp domain, How DNS Works
uucpxtable, Mixing UUCP and RFC-822
uuwho command, Mixing UUCP and RFC-822
uux command, Article Batching

V

Van Jacobson header compression, SLIP Operation, The Point-to-Point Protocol
VERSIONID macro defintion, VERSIONID and OSTYPE
Virtual Brewery, Example Network:The Virtual Brewery
virtual email hosting
accepting mail for other domains, Accepting mail for other domains
forwarding mail to other destinations, Forwarding virtual-hosted mail to other destinations
virtusertable feature (sendmail), Forwarding virtual-hosted mail to other destinations
Vos, Jos, Original IP Firewall (2.0 Kernels)

W

Welsh, Matt, Sources of Information
Wirzenius, Lars, Sources of Information
wrapper, TCP, The tcpd Access Control Facility

X

X Windows, Introduction to TCP/IP Networks
X.25 protocol, Other Types of Hardware, The Socket Library
XDR (External Data Representation), Remote Procedure Call
Xerox Corporation, Xerox, Novell, and History
Xerox Network Specification (XNS), Xerox, Novell, and History
XNS (Xerox Networking System), The Socket Library

Y

Ye Olde ARPAnet kludge, Mixing Different Mail Formats
Yellow Pages (YP), Resolving Host Names
yp-linux command, The Network Information System
ypbind command, Getting Acquainted with NIS
ypcat
command, Getting Acquainted with NIS
utility, Setting Up an NIS Client with GNU libc
yppasswd, Using the passwd and group Maps
ypserv command, Getting Acquainted with NIS
Yutaka, Niibe, The PLIP Driver

Z

Zen, What Is Usenet, Anyway?
zone files, Running named
zones, DNS
See DNS, zones
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