To backup data from a non-smart SonyEricsson mobile phone (such as W890i) in Linux, use the gammu utility.

1. Install gammu, it is available as a package in the standard repositories for Debian and Ubuntu, just install the gammu package.

2. Create a ~/.gammurc file with the following content:> > [gammu]
   > port = /dev/ttyACM0
   > connection = at

3. Connect your mobile phone to the computer with the USB cable and select Phone mode

4. Use
   > gammu backup filename.vcf -yes

The developers of PHP has, in their infinite wisdom, decided that the default session timeout should be 24 minutes (1440 seconds).

This means that if you have a MediaWiki wiki and are editing a single page for half an hour and then click the save button, you are logged out and all your changes are lost. I just learned this the hard way.

Fortunately, you can change this with the session.gc_maxlifetime parameter in php.ini. So set this to a higher – more sane – value, such as 86400 (24 hours).