Linux

A while ago our server seems to have a hard disk failure as the following error messages kept coming up: hda: dma timeout error: [...] hda: dma_timer_expiry: [...] We exchanged the 20 GB HD against my old Mac's 4.7 GB HD and reinstalled the system. A friend of mine tried the "broken" 20GB HD on a Windows system and said it works fine.

If you manually want to syncronize your computer's clock with a time server: sudo /usr/sbin/ntpdate tick.keso.fi

Search for packages containing the word emacs in their name or description:
apt-cache search emacs
Install package emacs21:
apt-get install emacs21
Remove package wine including all configuration files:
apt-get remove --purge wine
Reinstall a package:
apt-get --reinstall install wine
Sometimes, you need to use dpkg to reconfigure a package, e.g. here the bittorrent sync package:
dpkg-reconfigure btsync