Mailbag

Howard Dyckoff

1028042 lg-144.tar.bz2
1045337 lg-144.tar.gz

  [Linux-bzImage, setup=0x1e00, size=0x16eb71]
  initrd /initrd -2.6.15-1.2054_FC5.img
  [Linux-initrd @ 0xfd45000, 0x19adf9 bytes]

  Uncompressing Linux... ok, booting the kernel.
  Red Hat nash version 5.0.32 starting
  Reading all physical volumes. This may take a while...
  Couldn't find device with uuid 'tD0wBg-QBZz-zExm-A6QM-ZbPv-z42w-su5bzz'.
  Couldnt find all physical volumes for Volume Group VolGroup00.
  Couldn't find device with uuid 'tD0wBg-QBZz-zExm-A6QM-ZbPv-z42w-su5bzz'.
  Couldnt find all physical volumes for Volume Group VolGroup00.
  Couldn't find device with uuid 'tD0wBg-QBZz-zExm-A6QM-ZbPv-z42w-su5bzz'.
  Couldnt find all physical volumes for Volume Group VolGroup00.
  Couldn't find device with uuid 'tD0wBg-QBZz-zExm-A6QM-ZbPv-z42w-su5bzz'.
  Couldnt find all physical volumes for Volume Group VolGroup00.
  Unable to find volumegroup "VolGroup00"
  Unable to access resume device (idev/volgroup00/LogVol01)
  Mount: could not find file system '/dev/root'
  Setuproot: moving idev failed: no such file or directory.
  Setuproot: error mounting /proc: no such file or directory.
  Setuproot: error mounting /sys: no such file or directory.
  Switchroot: mount failed: no such file or directory
  Kernel Panic- not syncing: attempted to kill init!

-- 
Mohsen Pahlevanzadeh
email address : [email protected]
web site : http://pahlevanzadeh.org
IRC IM : m_pahlevanzadeh
yahoo IM : linuxorbsd

> Below is  the result of x86info -v: This statement at the bottom is kindof cryptic:
> WARNING: Detected SMP, but unable to access cpuid driver.Used Uniprocessor
> CPU routines. Results inaccurate. Any idea what it could mean??Thanks again
> for the help. 

  CONFIG_X86_CPUID:   
  This device gives processes access to the x86 CPUID instruction to  
  be executed on a specific processor.  It is a character device  
  with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to  
  /dev/cpu/31/cpuid.        

-- 
[...]If they can't think at that point and find information, then they aren't really
cut out to do harder admin. They can go become "Sr. Windows Admins" (senior
with Windows means that they have figured out how to change
the date).- Chuck Yerkes,openbsd mailing list

-- 
Ian Chapman
ALFT Inc
302 Legget Drive
Kanata K2K-1Y5
Canada
613-287-0470 (227)

> [...]
> I hope this is not an improper venue for seeking out information. If it is 20
> I apologize and will bugger off. If not, I am writing to you to ask a few
> questions about your Postfix/Cyrus/OpenLDAP article.

> I am not very experienced at all with OpenLDAP so that is where the thrust
> of my questions lay. I am trying to use your article and supplied
> configurations as a template and modifying as needed.

> In your tree design you show
> cn=webmail,ou=system,ou=accounts,dc=example,dc=net as a webmail account to
> do lookups but it is not referenced at all in the slapd.conf. How is that
> portion used.

ERROR message: "sed: -e expression #1, char 0: no previous regular 
expression Bad argument `DROP' Try `iptables -h' or 'iptables --help' 
for more information."while running that script manuall.

#!/bin/bash
rm -f ttt
touch tmp
# disabled IPs can be obtained from /etc/sysconfig/iptables
grep DROP /etc/sysconfig/iptables|awk '{print $5}' >tmp
# ------------------------ DoS attacks rule -------------------------
#identity mismatch in secure
grep Did /var/log/secure|awk '{print $12}' >>tmp
#Invalid user
grep "Invalid user" /var/log/secure|awk '{print $10}' >>tmp
# Maximum login
grep "Maximum login" /var/log/secure|awk '{print $7}'|sed 's/.*\[\(.*\)\])/\1/g' >>tmp
#
# ------------------ reduce redundant IPs from tmp file -------------
size=`/usr/bin/wc tmp|awk '{print $1}'`
i=0
while test $i -lt $size
do
      us=`sed -n 1p tmp`
      sed /$us/d tmp >tmps
      echo $us >>ttt
      cp -f tmps tmp
      size=`/usr/bin/wc tmp|awk '{print $1}'`
done
rm -f tmp tmps temp0 temp
#
# ------------------ activate detected IPs --------------------------
size=`wc ttt|awk '{print $1}'`
size=`expr $size + 1`
/sbin/iptables -F
i=1
while test $i -lt $size
do
        ip=`sed -n "$i"p ttt`
        i=`expr $i + 1`
/sbin/iptables -A INPUT -s $ip -j DROP
done   
# -----------------end of shell script test -------------------------  

#!/usr/bin/perl -w
# Created by Ben Okopnik on Tue Feb 12 07:03:34 CST 2002
$browser = "/usr/bin/mozilla-firefox";

exec $browser, "http://www.google.com/advanced_search" unless @ARGV;

for ( @ARGV ){ s/.*/%22$&%22/ if y/ /+/; $s .= $s?"+$_":"$_"; }

# $ENV{LANG} = "en_US.UTF8";
exec $browser, "http://www.google.com/search?num=30&hl=en&as_qdr=all&q=$s&btnG=Google+Search"

-- 
Amit Kumar Saha
*NetBeans Community Docs
Contribution Coordinator*
me blogs@ http://amitksaha.blogspot.com
URL:http://amitsaha.in.googlepages.com

ESC]0;mulyadi@rumah:/tmp^GESC[?1034h[mulyadi@rumah tmp]$ ls
ESC[00mESC[00;34mgconfd-doelESC[00m ESC[00;34mvirtual-mulyadi.Bx4b1XESC

	/media/cdrom 192.168.0.101(ro)

	portmap: 192.168.0.101 : ALLOW
	mountd: 192.168.0.101 : ALLOW

	/etc/init.d/portmap start
	/etc/init.d/nfs-kernel-server start

	mount: can't find /dev/hdc in /etc/fstab or /etc/mtab

	mount /dev/cdrom

	ifconfig eth0 192.168.0.102 up

	IP-address	192.168.0.101
	netmask		255.255.255.0	(default)
	gateway		192.168.0.101	(default)
	name server	<ESC>
	NFS server	192.168.0.102
	directory	/media/cdrom

	/etc/init.d/nfs-kernel-server stop
	umount /dev/cdrom

	mount /dev/cdrom
	/etc/init.d/nfs-kernel-server start

	5  Full multiuser with network and xdm

	3  Full multiuser with network

	/sbin/ifconfig eth0 192.168.0.101 up

	sshd: 192.168.0.0/255.255.255.0 : ALLOW

	Disk /dev/hda: 32 heads, 63 sectors, 4238 cylinders
	Units = sectors of 1 * 512 bytes

	   Device Boot    Start       End    Blocks   Id  System
	/dev/hda1            63    465695    232816+  83  Linux
	/dev/hda2        465696   8543807   4039056   fd  Linux raid autodetect

	Disk /dev/hdc: 15 heads, 63 sectors, 8894 cylinders
	Units = sectors of 1 * 512 bytes

	   Device Boot    Start       End    Blocks   Id  System
	/dev/hdc1            63    262709    131323+  82  Linux swap
	/dev/hdc2        262710   8404829   4071060   fd  Linux raid autodetect

	SCSI subsystem driver Revision: 1.00
	request_module[scsi_hostadapter]: Root fs not mounted
	request_module[scsi_hostadapter]: Root fs not mounted
	md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
	md: Autodetecting RAID arrays.
	 [events: 00000000]
	md: invalid raid superblock magic on hda2
	md: hda2 has invalid sb, not importing!
	md: could not import hda2!
	 [events: f6928712]
	md: invalid raid superblock magic on hdc2
	md: hdc2 has invalid sb, not importing!
	md: could not import hdc2!
	md: autorun ...
	md: ... autorun DONE.
	NET4: Linux TCP/IP 1.0 for NET4.0
	IP Protocols: ICMP, UDP, TCP, IGMP

	rpm -hUv mdadm-2.6-1.src.rpm

	raiddev /dev/md0
		raid-level	1
		nr-raid-disks	2
		nr-spare-disks	0
		persistent-superblock 1
		chunk-size	4
		device		/dev/hda2
		raid-disk	0
		device		/dev/hdc2
		raid-disk	1

	mkraid /dev/md0

	mkdir /DATA

	chmod a+w /DATA

	/dev/md0 /DATA ext2 defaults 1 2

	mkfs.ext2 /dev/md0

	scp /tmp/junk.exe [email protected]:/DATA/throw_this_away_now

	scp [email protected]:/DATA/throw_this_away_now /tmp/junk.exe

	knoppix@4[knoppix]$ ssh -l web 192.168.0.101
	The authenticity of host '192.168.0.101 (192.168.0.101)' can't be established.
	RSA key fingerprint is 87:5f:41:fb:4d:32:9d:d3:f9:e4:d1:9d:6f:23:4a:fb.
	Are you sure you want to continue connecting (yes/no)? yes
	Warning: Permanently added '192.168.0.101' (RSA) to the list of known hosts.
	[email protected]'s password:
	Last login: Sat Nov  3 13:48:43 2007 from 192.168.0.102
	Have a lot of fun...
	web@linux:~> su
	Password:
	linux:/home/web # cd
	linux:~ # ls
	.   .bash_history  .gnupg  .viminfo  bin      nfs_on
	..  .exrc          .mc     .xinitrc  nfs_off
	linux:~ # pwd
	/root
	linux:~ #

	rpcinfo -p localhost
	   program vers proto   port
	    100000    2   tcp    111  portmapper
	    100000    2   udp    111  portmapper

	ALL : ALL

	sshd: 192.168.0.0/255.255.255.0 : ALLOW
	portmap: 192.168.0.0/255.255.255.0 : ALLOW
	lockd: 192.168.0.0/255.255.255.0 : ALLOW
	mountd: 192.168.0.0/255.255.255.0 : ALLOW
	rquotad: 192.168.0.0/255.255.255.0 : ALLOW
	statd: 192.168.0.0/255.255.255.0 : ALLOW

	/DATA 192.168.0.0/255.255.255.0(rw,root_squash,sync,insecure)

	/etc/init.d/portmap restart
	/etc/init.d/nfsserver restart

	ifconfig eth0 192.168.0.102 up

	knoppix@4[knoppix]$ rpcinfo -p 192.168.0.101
	program vers proto   port
	100000    2   tcp    111  portmapper
	100000    2   udp    111  portmapper
	100024    1   udp   1027  status
	100024    1   tcp   1026  status
	100003    2   udp   2049  nfs
	100003    3   udp   2049  nfs
	100021    1   udp   1028  nlockmgr
	100021    3   udp   1028  nlockmgr
	100021    4   udp   1028  nlockmgr
	100005    1   udp   1029  mountd
	100005    1   tcp   1027  mountd
	100005    2   udp   1029  mountd
	100005    2   tcp   1027  mountd
	100005    3   udp   1029  mountd
	100005    3   tcp   1027  mountd
	knoppix@4[knoppix]$ 

	mount 192.168.0.101:/DATA /mnt

Disk /dev/hda: 32 heads, 63 sectors, 4238 cylinders
Units = sectors of 1 * 512 bytes

   Device Boot    Start      End   Blocks   Id  System
/dev/hda1            63   465695   232816+  83  Linux native
/dev/hda2        465696  8543807  4039056   fd  Unknown
total 259296

     4 drwxr-xr-x   2 1000     1000         4096 Nov  4 15:13 Mail/
     4 drwxr-xr-x  11 501      100          4096 Nov  4 14:56 Pictures/
     4 drwxr-xr-x   3 root     root         4096 Nov  4 15:39 TEMP/
     4 drwxrwxrwx   3 501      100          4096 Nov  4 20:47 article/
    16 drwx------   2 root     root        16384 Nov  2 11:51 lost+found/
   204 -rwxr-xr-x   1 501      100        201156 Nov  2 12:02 mdadm-2.6-1.src.rpm*
259056 -rw-r--r--   1 501      100      265004960 Nov  4 15:35 web.tgz
     4 -rw-r--r--   1 root     root          132 Nov  3 15:31 rpcinfo

Disk /dev/hdc: 15 heads, 63 sectors, 8894 cylinders
Units = sectors of 1 * 512 bytes

   Device Boot    Start      End   Blocks   Id  System
/dev/hdc1            63   262709   131323+  82  Linux swap
/dev/hdc2        262710  8404829  4071060   fd  Unknown
total 259296

     4 drwxr-xr-x   2 1000     1000         4096 Nov  4 15:13 Mail/
     4 drwxr-xr-x  11 501      100          4096 Nov  4 14:56 Pictures/
     4 drwxr-xr-x   3 root     root         4096 Nov  4 15:39 TEMP/
     4 drwxrwxrwx   3 501      100          4096 Nov  4 20:47 article/
    16 drwx------   2 root     root        16384 Nov  2 11:51 lost+found/
   204 -rwxr-xr-x   1 501      100        201156 Nov  2 12:02 mdadm-2.6-1.src.rpm*
259056 -rw-r--r--   1 501      100      265004960 Nov  4 15:35 web.tgz
     4 -rw-r--r--   1 root     root          132 Nov  3 15:31 rpcinfo

/proc
/proc/mdstat
(pin to pin connection)

DB9 -1           DB9 - 2 
2         <->       3
3         <->       2
5         <->       5

minicom -m -s /dev/ttyS0 

 A -    Serial Device      : /dev/ttyS0    
 B - Lockfile Location     : /var/lock   
 C -   Callin Program      :         
 D -  Callout Program      :        
 E -    Bps/Par/Bits       : 115200 8N1    
 F - Hardware Flow Control : No     
 G - Software Flow Control : No        

username: root
password: root

binutils-arm-linux
gcc-arm-linux
libc6-arm-cros

# For RPM based systems: "rpm -ivh software_name". E.g.:
rpm -ivh binutils-arm-linux.rpm

# For Debian/Ubuntu like systems: "dpkg -i software_name". E.g.:
dpkg -i binutils-arm-linux.deb

# For distro-independent installation from source:
tar zxvf binutils-arm-linux.tar.gz
cd binutils-arm-linux
./configure
make 
make install

#include <stdio.h>
int main(){
	printf("hello, world\n");
	return 0;
}

arm-linux-gcc hello.c -o hello

file hello
hello: ELF 32-bit LSB executable, ARM, version 1 (ARM), for GNU/Linux 2.2.0, dynamically linked (uses shared libs), for GNU/Linux 2.2.0, not stripped

/etc/init.d/httpd start

cp hello /var/www/html

wget http://192.168.0.1/hello
Connecting to 192.168.0.1[192.168.0.1]:80                                     
hello                100% |*****************************|  9475       00:00 ETA

# Give executable permission to 'hello' 
chmod +x hello

# Now run it
./hello
hello, world 

wget http://download.atmark-techno.com/armadillo-9/source/linux-2.6.12.3-a9-10.tar.gz 
#untar the source for compiling the kernel module
tar zxvf linux-2.6.12.3-a9-10.tar.gz
cd linux-2.6.12.3-a9-10
#now create a .config preconfigured for the armadillo 9
make armadillo9_defconfig

#include <linux/kernel.h>
#include <linux/module.h>

int init_module(void){
	printk("hello, armadillo!\n");
	return 0;
}

void cleanup_module(void){
	printk("bye, armadillo\n");
}

# On my machine, I keep the uncompressed Linux source at
# /root/arm/linux-2.6.12.3-a9-10. Modify this for your setup. 
obj-m:=test.o
all:
        make -C /root/arm/linux-2.6.12.3-a9-10 M=`pwd` modules
clean: 
        make -C /root/arm/linux-2.6.12.3-a9-10 M=`pwd` clean

cp simple.ko /var/www/html

wget http://192.168.0.1/simple.ko

# Insert the module using insmod
insmod simple.ko

# This will show 'simple' as one of the loaded modules
lsmod 

# Unload the module 
rmmod simple

apt-get install application

1 2 add

gv heart.ps

%!ps                                % Every PostScript program should start with this line.
1 0 0 setrgbcolor                   %sets the color as red (rgb)
250 210 moveto                      %sets the initial position
270 170 100 100 200 275 curveto     %draws the two curves 
400 170 100 100 200 275 curveto
fill
showpage

/Helvetica findfont    % Get the basic font
30 scalefont           % Scale the font to 30 points
setfont                % Make Helvitica the current font
250 450 moveto         % Text positioned at (250,450)
(Hello World !)
show
showpage

tar zxvf PyX-0.10.tar.gz
cd PyX-0.10
python setup.py install

yum install tetex           # on Redhat/Fedora distributions
apt-get install tetex-latex # on Debian/Ubuntu distributions

from pyx import *

c = canvas.canvas()
c.text(10, 10, "Hello, world!")
c.writePSfile("hello")

Sunday    260
Monday    242
Tuesday   245
Wednesday 228
Thursday  282
Friday    232
Saturday  254

from pyx import *

g = graph.graphxy(width=8, x=graph.axis.bar())  # creates a graphxy instance
g.plot(graph.data.file("diabetes.dat", xname=0, y=2), [graph.style.changebar()]) # reads data from diabetes.dat 
g.writePSfile("diabetes") # generates the PostScript file

from pyx import *

g = graph.graphxy(width=8)
g.plot(graph.data.function("y(x)=sin(x)", min=0, max=10))
g.writePSfile("sine")

UID.RVW 20071129
================
%A   Eric Butow
%C	 Boston, San Francisco, New York
%D	 2007   
%G   978-0-321-44773-9
%I   Addison Wesley Pearson Education
%O   http://www.awprofessional.com/safarienabled http://www.formeremortals.com
%P   286 pages
%T   "User Interface Design for Mere Mortals: A Hands-On Guide to User Interface Design Software Independent Approach!" 
%S	 For Mere Mortals

Brief Histories
Concepts and Issues
Making the Business Case
Good Design
How User Behave [sic]
Analyzing Your Users
Designing a User Interface
Designing a Web Site
Usability

December 2007 (#145):

Mailbag

This month's answers created by:

Still Searching

CTX Ez Book 800 Series (model FT6730)

Our Mailbag

problem in coding of problem in linux

apt-get dist-upgrade

compressed issues of LG

How do I reformat an Ubuntu installation?

NIS client root privilege

Some stunnel questions (hopefully not too dumb)

Floppy Drive automounting ubuntu 7.04??

uninstalling linux

Run java class file using cron?

keyword of types of video card

using smp kernel, get 100% cpu usage one one cpu without any real load on the system

Talkback

Talkback:144/howell.html

Talkback:130/tag.html

Talkback:124/pfeiffer.html

Talkback:133/cherian.html

Talkback:137/takefuji.html

Talkback:115/okopnik.html

2-Cent Tips

2 cent tip: Interpreting color escape sequence

NewsBytes

News in General

Xen gets pumped by Oracle and Sun

Red Hat EL 5.1 Enables Broad Server Virtualization

RHEL On Demand on Amazon Elastic Compute Cloud

Events

Distros

Community Welcomes Fedora 8

MEPIS 7

FreeNAS Beta

Fourth release candidate for NetBSD 4.0

Products

Dell to sell Servers with Solaris Installed

New Use for Old Hardware: Network RAID Backup

Network Installation

Post-Installation Adjustments

RAID Setup

SSH Access

NFS Access

Trust is Good, But ...

Conclusion

Linux on an ARM based Single Board Computer

Armadillo 9 specifications

Development Setup

Installing the GNU/Linux Toolchain and related software

Hello, Armadillo!

A Simple kernel module for Armadillo9

Moving further...

References

Generating Postscript graphs using PyX

A prelude to PostScript

Let's get our hands dirty with some PostScript snippets

A Simple PostScript program using PyX

Some more PostScript graphs

Conclusion

References

Review: User Interface Design for Mere Mortals

Introduction

Contents

"Mere Mortals"

Software Independence?

Summary

HelpDex