Svetoslav Marinov’s Blog

Here is how to (always) get your server's a IP address. Works on Unix/Linux.

<?php
if (empty($_SERVER['SERVER_ADDR'])) {
$server_host = `hostname -f`;
$server_ip = `host $server_host`;

if (preg_match('#(\d+\.\d+\.\d+\.\d+)#', $server_ip, $matches)) {
$server_ip = $matches[1];
} else {
$server_ip = '127.0.0.1';
}
} else {
$server_ip = $_SERVER['SERVER_ADDR'];
}

echo $server_ip;
?>

Have you seen this error message:

root@ubuntu:/media/cdrom# ./VBoxLinuxAdditions-x86.run
Verifying archive integrity... All good.
Uncompressing VirtualBox 2.1.4 Guest Additions for Linux installation...........................................................................................................................................................................................................
VirtualBox 2.1.4 Guest Additions installation
Please install the build and header files for your current Linux kernel.
The current kernel version is 2.6.27-11-server
Problems were found which would prevent the Guest Additions from installing.
Please correct these problems and try again.

Solution:

sudo aptitude install build-essential linux-headers-`uname -r`

or

sudo aptitude update && aptitude dist-upgrade && aptitude install linux-headers-`uname -r`

Related

• http://ubuntuforums.org/showthread.php?t=1058950
• http://ubuntuforums.org/archive/index.php/t-446927.html

Have you seen this message lately ?

csvn: Commit failed (details follow):
svn: Could not use external editor to fetch log message; consider setting the $SVN_EDITOR environment variable or using the --message (-m) or --file (-F) options
svn: None of the environment variables SVN_EDITOR, VISUAL or EDITOR is set, and no 'editor-cmd' run-time configuration option was found

Here is how to export SVN_EDITOR variable.

Feel free to change the editor to pico, nano etc.

echo export SVN_EDITOR=vi >> ~/.bash_profile

Logout and then Login again to *see* the change.
By *see* I mean that you have to do execute the following command and the editor of your choice should be run for you:

svn ci

Related:

• http://www.jappler.com/blog/archive/2008/05/05/howto-change-the-svn-editor