Linux

snippets.dzone.com/posts/show/1491

In Linux, (probably similar with other unix-flavour..) /sbin/hdparm is used to tune the hard disk. Although in most cases the hard disks are tuned to offer its maximum throughput, it's a good idea to check the current setting and try to get an even better result.

Warning Unless you are extremely lazy, it's a good idea to see the manpage of the hdparm before playing with it to avoid any potential damages to the hard disk.

1. See the current setting by typing /sbin/hdparm -i /dev/hda

/dev/hda:

Keyword: Samba, Linux, Primary Domain Controller, PDC

Samba is a suite of programs from samba.org that lets Linux talk to Window.

One of its features is for Samba to act as the Primary Domain Controller in the Windows Domain, that is for Samba to act as a Windows Server that provides domain login. This provides a very inexpensive (free!) way to create a simple, but perfectly usable windows domain.

Build an 8 PS3 supercomputer by ZDNet's Robin Harris -- Less than a 10th the cost per GFlop of the $2500 supercomputer Take 8 PS 3 consoles, Yellow Dog Linux, a Gigabit Ethernet switch and your favorite protein folding or gravitational wave modeling codes and you’re doing real science. On a Playstation! Try playing Ratchet & Clank on a Cray Most scientific computing is done on cluster computers. [...]

For most gentoo users, a simple mail client and fetchmail will do. However, if you're hosting a domain with your system, you'll need a full blown MTA (Mail Transfer Agent). And if you're hosting multiple domains, then you'll definitely need something more robust to handle all of the email for your users. This system was designed to be an elegant solution to that problem.