Today I got a new harddisk, so it was finally time for me to have an in depth look at LVM. I use it to combine two harddisks /dev/sdg1 and /dev/sdb1 into one volume group ext_vg which contains one big logical volume /dev/ext_vg/ext. In short, my 250GB and 500GB harddisks are used in one big [...]

What?

I am a long-term StumbleUpon user, which means that I don’t get much sleep. Now, after almost 4 years of stumbling, I have decided to get my life back. Well, at least some sleep!
What does this do?
Every night when I have to work on the next day (Sunday night to Thursday night ), at [...]

Markus Holzmann, an intern at Profactor of my fellow colleague Philipp Hartl, had the opportunity to experiment with Ajax during his job. He wrote a tutorial about how to push events from the server to the client. For example, display popup messages on all browsers at the same time (see screencast in full resolution here):

[...]

This is a very condensed excerpt of the excellent article How to install ANYTHING in Ubuntu.
Search, install, remove available packages (preferred method)
sudo aptitude search ABC
sudo aptitude install ABC
sudo aptitude remove ABC
.deb (you have to take care of dependencies on your own)
sudo dpkg -i ABC.deb
.rpm (requires sudo aptitude install alien)
sudo alien -i *.rpm
.tar.gz (requires sudo aptitude [...]

If you use Linux on a Laptop, chances are high that you can dramatically improve the responsiveness of all your GUI applications. This tip will work for you if you:

Use a frequency scaling application like powernowd (Ubuntu does this by default), cpudynd, or cpufreqd.
Have Kernel 2.6.9 or better.

In short, the trick is to disable powernowd [...]