Comments for Debian Admin

Comment on Howto setup Request-Tracker 3.6 on Debian Etch by Chris

Chris — Tue, 21 Feb 2012 22:25:43 +0000

Hi Great write up is right. I have been reading everywhere about rt. I recently have been made responsible for rt system(no training). Every time a report runs it fails on rt. Example
We are running rt-3.8.6.

Being suspicious I decided to run basic sql commands to see if I can login. Mind you I can log into the system via http.

Here is the request tracker report….

rt3# /usr/local/bin/rt ls -i “Created > ’1 Year Ago’ AND Status != ‘resolved’” -o -Created | xargs /usr/local/bin/report.pl
rt: Incorrect username or password.

What does this mean???? How to a fix this?

I ran same command below with these results thinking that I should be able to login.

rt3# mysql -u chris.bender@localhost -p
Enter password:
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2)

Comment on Howto Replace multiple file text string in Linux by Arno

Arno — Tue, 21 Feb 2012 16:53:11 +0000

The rrep program lets you replace strings in multiple files and recursively in directories. It also supports regular expressions. The usage is similar to grep.
Available in Debian, Ubuntu and at http://sourceforge.net/projects/rrep/

Comment on Install .rpm Files in Debian and Ubuntu by theOne

theOne — Mon, 20 Feb 2012 06:32:47 +0000

the alien -i option works great…thanks

Comment on Top 84 MySQL Performance Tips by Steve

Steve — Sat, 18 Feb 2012 16:20:59 +0000

Hi there, thanks for the helpful list.

If I may just ask about point no. 24: “separate text/blobs from metadata, don’t put text/blobs in results if you don’t need them”.

How exactly is this division achieved?
Do you have two tables (or two databases?) one holding blobs, and the other, metadata (with a foreign key)?
Is this a secure and reliable strategy?
Are there certain things I need be warned of?

Thanks for your time.

Comment on sshpass - Non-interactive ssh password authentication by sysadmin

sysadmin — Fri, 17 Feb 2012 11:56:35 +0000

Yes, public key authentication is better, but not always available. For example, I have Draytek Vigor wifi-router with has ssh-server but I don’t know whether it supports public key authentication (and I almost sure that it does not). So sshpass is ideal soulution in this case. Thanks to author for this post!

Comment on How to setup GeoIP support for apache2 On Debian Etch by Bohuslav Jonathan Tóth

Bohuslav Jonathan Tóth — Thu, 16 Feb 2012 15:14:05 +0000

hi there im working on something like this and i cant get it work properly.

1. main server is located in london, using geoip to get continet code to show of a visitor connecting to web server. there are several web domains connecting to it as http and www as well

2. i want to incoming header and address using continent geoip code forward it to another reverse proxy located in another continent using geoip. reverse proxy has already a database of running web addresses and where to looking for files on original web server

3. i just do not know how to use header coming to main server and forward it to reverse proxy so reverse proxy would see it as coming straight to it. main server should not have a database of running web sites. just a plain redirection using geoip to reverse proxy on another continet

i know this shouldbe easy i just need help

thanx, john

Comment on Howto Setup Cisco Router Auxiliary,Console and Telnet Passwords by Sunny

Sunny — Thu, 16 Feb 2012 10:41:58 +0000

When conf. the console and vty what is the difference between “login” and “login local”?

Cheers

Comment on Clone Your Ubuntu installation by Dr A Saleem Sajid

Dr A Saleem Sajid — Wed, 15 Feb 2012 19:51:01 +0000

I very strongly recommend remastersys for three reasons particularly for the desktop systems.
1. You have a snapshot of your system as a backup
2.You have an installation media with all your packages on it. Thus no need to download them again.
3.You save bandwidth and reduce load on the download server

I have been using this approach

Comment on Debian Mail Server Setup with Postfix + Dovecot + SASL + Squirrel Mail by fetra

fetra — Tue, 14 Feb 2012 06:37:39 +0000

Im getting timed out by the recieving servers!!!

Comment on How to sendemail from the command line using a Gmail account and others by Joe Dickson

Joe Dickson — Mon, 13 Feb 2012 15:55:35 +0000

Here is the Windows command that worked for me.

sendEmail -f Email@domain.com -t Recipient@domain.com -u “this is the subject” -m “this is a test message body” -s smtp.gmail.com:587 -o tls=yes -xu username@gmail.com -xp password

Comment on forgot root password or reset root password in Debian by elmbeech

elmbeech — Sun, 12 Feb 2012 20:26:21 +0000

thank you!
this side helped me a lot. I had installed debian on a mac with powerpc processer and yaboot ages ago and forgot my user and root password.
i used a combination of solution 1 and 2:
1) boot: Linux init=/bin/bash
2) mount -n -o remount,rw /
3) vi shadow
Scroll down to the line containing the root user’s information, which looks something like
root:weeWRSF!sfDFs:12581:0:99999:7:::
Delete everything between the first and second colons, so that the line looks like
root::12581:0:99999:7:::
Save the file and exit your editor.
4) exit the console
5) i got some kernel panic and had to press the on/off button on the box for soem secounds to get the computer switched off. then i started the computer again.
6) after the graphical logon screen appeard pess ctrl + alt + f1 to change to a text console
7) logan as root - you should now not need a password.
change the user password by the ‘passwd user’ commad
9) chnage to the graphical consol by ctrl + alt + f7
10) logon with that user and then new password

Comment on Install QupZilla (Lightweight multiplatform web browser) in debian by steve

steve — Mon, 06 Feb 2012 02:01:37 +0000

Nothing but problems with linux use BSD ! They have all unified installer !

Comment on XPressLinux - A New Kubuntu Based Linux Operating System For Windows Users by Joe Owen

Joe Owen — Fri, 03 Feb 2012 11:15:48 +0000

Please, some one either send/post a link to Download, or
make available through bit torrent. Thanx

Comment on Install .rpm Files in Debian and Ubuntu by Dieter Stroehle

Dieter Stroehle — Tue, 31 Jan 2012 12:10:28 +0000

Hi, have worked some time now to get a Lexmark Z600 debian printer driver available for installation on the Linux eeePC 701. So far I achieved to make the two rpm files available, but was not able to convert them into .deb files due to error messages. Now I look for someone who will be able to convert them. If someone thinks to be able to convert please send your Email address to me and I will submit for conversion and return the converted files to me. Email-address is: dstroehle@online.de. Many thanks in advance

Comment on Howto Replace multiple file text string in Linux by Rob Groen

Rob Groen — Tue, 31 Jan 2012 11:33:33 +0000

just place a g (global) behind the last slash in

grep -l OLDTEXT * | xargs perl -pi~ -e ‘s/OLDTEXT/NEWTEXT/’

so it becomes

grep -l OLDTEXT * | xargs perl -pi~ -e ‘s/OLDTEXT/NEWTEXT/g’

Comment on How to Reset debian Root Password by Bernard

Bernard — Mon, 30 Jan 2012 17:46:38 +0000

My way of solving this issue:
1. Start up the computer with a linux live CD (or USB key). Doesn’t matter if it’s a Debian, Ubuntu or probably any other distro - I used an Ubuntu 11.10 USB key.
2. Using the Disk Utilities available from your device, mount the partition that hosts your /etc folder (probably marked as bootable)
3.in a command line, go to ./etc under your mounted partition, probably in /media/[a long hd id-like number]. Notice the dot (.) before /etc; don’t go to “/etc”. You can check that you’re in the right folder with a little “grep -i [name of a user of yours (not root!)] shadow” If you get anything, you’re in the right folder and you can proceed to step 4.
4. Just to be safe, make a backup copy of your “shadow” file. I simply used a “cp ./shadow /media/[an inserted and mounted USB key]/shadow” command.
5. Using your favorite text editor (I used nano because I know it’s available on my key), edit your “shadow” file (“nano shadow”)
6. Locate the root line. It’ll look something like “root:[encrypted pw]:12345:5:99999:::” (figures are made up)
7. replace the [encrypted pw] part of the line with a single “!”. Yep, just an Exclamation mark with no double quotation mark. That tells Linux to authorize the mentioned user to access the system with no pw, so be cautious ! Your line will then look something like “root:!:12345:5:99999:::”
8. Save your changes and exit the command line
9. Back to your Disk Utilities program, unmount the partition you mounted in step 2 above.
10 Turn your computer off and remove all media, may it be USB key, CD, or whatever.
11 Restart your computer and, in the grub menu, choose “rescue mode”. You’ll find yourself in a command line of a root session with no pw.
12 change your pw with a “passwd” command. If you’re not sure, “man passwd” should help.

I know it’s somewhat lenghty, but it worked for me in a few minutes.

Comment on List of Ubuntu Based Linux Distributions and Live Cd’s by JakeChaos

JakeChaos — Mon, 30 Jan 2012 17:12:52 +0000

gOS is ubuntu based. When you start it it even say ubuntu.

Comment on Create and Extract .bz2 and .gz files by santosh

santosh — Mon, 30 Jan 2012 07:21:03 +0000

please help me how to extract img.gz file in ubuntu 10.04 version

Comment on Howto Replace multiple file text string in Linux by Lena Schimmel

Lena Schimmel — Fri, 27 Jan 2012 13:42:14 +0000

Attention! None of the above commands (neither perl nor sed) seem to work correctly if OLDSTRING is found multiple times within the same line. In this case, only the first occurence within that line will be replaced and others remain unchanged. (Tested with perl 5.10.1 with debian patches and GNU sed 4.2.1)

Is there a way to fix that? (For me it’s not a real problem, so I won’t come back here to check your answers, but maybe this well help someone else who stumbles across this page…)

Comment on Install Iceweasel Web Browser in Debian and Ubuntu by Edwin

Edwin — Thu, 26 Jan 2012 10:12:14 +0000

Installed nice in Ubuntu 9.10 after removing hunspell-en-us. Thanks.