Blog Posts
Choosing a filesystem for your Linux/Unix server
Case Study
August 27, 2007 | COMMENTS

You probably already ask you : "which filesystem can I use on my web servers or database server ?" Usually you will use the well know Ext3-fs but what about the others ?

I will just try to give you some clue about some other common filesystems. The filesystem aspect of your server is really important and your choice will vary with your running application. As exemple, a mail server will have more performances with a Reiserfs filesystem than with Ext3-fs.

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Working with Bash Aliases (Alias/Unalias)
Shell Tips
August 25, 2007 | COMMENTS

Aliases allow a string to be substituted for a word when it is used as the first word of a simple command. The shell maintains a list of aliases that may be set and unset with the alias and unalias builtin commands.

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Bash Help Sheet
Shell Tips
April 15, 2007 | COMMENTS

Forgot a command or a shortcut in your favorite shell ? Here is a small help sheet with most used commands !

I read it some times for remember me some useful shortcuts that can help you to work faster with bash shell. I does this help sheet sometimes ago and never take time to finish it correctly. May be I’ll do a better version when I’ll have more time 😃
Bash help sheet thema : wildcards, escape keys bounds, tabs keys bounds, controls keys bounds, alt keys bounds...

bash help sheet ** Download it **:

Four useful Help Sheets (Vim, PHP, Linux...)
Tips
February 26, 2007 | COMMENTS

Here is a short list of Help Sheet (also known as Cheat Sheet). Those sheets are sometimes really useful.

  1. Quick references on linux administration. Click here for pdf version.

  2. Vim for (PHP) programmers, a real must to have for all VIM users. Click here for pdf version.

  3. A JQUERY (The Prototype-like library) Cheat Sheet. Click here for pdf version PAGE 1 / PAGE 2.

  4. Another Quick Reference guide about Linux Security. Little old but still really interesting. Click here for pdf version.

Common errors while starting Apache server on linux
Shell Tips
February 14, 2007 | COMMENTS

The correct way to start the apache server is to use the apachectl command.

apachectl stop

apachectl start

apachectl graceful

You can also check your configuration files.

apachectl configtest

A common error is probably this one :

(98)Address already in use: make_sock: could not bind to address 0.0.0.0:443

no listening sockets available, shutting down

This is caused by one or more processes running on the 443 (secure socket) port. You can get all the process ID’s that are running on this port with the command fuser or a more classical "ps auxww" with a less readable format.

nicolas@grimm:~$ fuser 443/tcp
443/tcp: 7977 6815 9819 35217
# Now you just have to do a **kill** on those process.
nicolas@grimm:~$ kill -9 7977 6815 9819 35217
# Or in a single line:
nicolas@grimm:~$ kill -9 $(fuse 443/tcp 2>/dev/null)
1
2
3
4
5
6

Other typical error would be those following :

(28)No space left on device: Couldn’t create accept lock

or

(28)No space left on device: mod\_rewrite: could not create rewrite\_log_lock Configuration Failed

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