Those of you that host your own Linux based web server may be using the very useful cPanel backup script to make a regular scheduled backup of your web site’s content and database content.  Although you can configure the details of the site backups and schedule from the graphical user interface it doesn’t provide you with the ability to kick the scheduled backup job off manually using the settings found in /etc/cpbackup.conf file.  This backup configuration is set via the WebHost Manager at Main >> Backup >> Configure Backup menu. To start the backup job off manually you need to log onto the server via SSH and then run the following command.

Code:

# /scripts/cpbackup –force

If hosting your own websites, such as WordPress, on a single webserver and have your email for a particular domain on that web server hosted somewhere else, you may experience the following error message when trying to send emails from within your website to an email address on the same domain: ‘virtual_aliases via virtual_aliases router forced address failure’.  (Hope this long sentence makes sense).

To resolve this issue SSL to your webserver take a look at the entries in the ‘etc/localdomains’ file.  In here you will see a list of your locally hosted domains on that web server.  Using an editor such as VI or NANO remove the line which contains the name of your domain whose email is hosted elsewhere and then save and exit.

Next using an editor open up the ‘etc/remotedomains’ file and add in the name of your domain – ensuring that the case and spelling matches how it was originally entered into the ‘etc/localdomains’ file.  Save the file and exit the editor.

You have now told the email transfer agent on the web server (eg: Exim) to look for a remotely hosted email server for that domain to send locally generated emails to.

Useful Links:

What does /etc/remotedomains and /etc/local domains mean on my Linux server? Should my domain be inside these files?

‘Bounce Backs’ Forum Thread

After recently installing Kubuntu one thing I immediately noticed was the slow performance when surfing the web either via Fire Fox or KDE´s Konqueror web browser.

Apparently it looks as though this could be put down to these browsers compliance with and use of IPv6. This seems to be quite a common problem experienced by many Ubuntu users though there is divided thought on whether this is the actual cause. Though if it wasn´t why does disabling IPv6 make internet connectivity improve to normal speeds?

The work around fix that worked for me was to disable IPv6 in Fire Fox. The thread below discusses this further and explains how to do this.

http://ubuntuforums.org/showthread.php?t=6841

Here is a step by step guide on how to install either KDE or Gnome as an extra user interface for Ubuntu – and how to swap between the two.

http://www.psychocats.net/ubuntu/gnome

Here is a good guide on how to install VMWare Server under Ubuntu, v6.x:

It worked a treat for me!