What Linux distro are you using for your servers ?

Usually debian, security patches are regular. Cons: packages can be a bit old.

FreeBSD. (Ok, not a linux distribution, but it's an alternative to using a linux distribution.)

Ubuntu 6.06 LTS 64-bit. It is beyond me why so many people use non-LTS release of Ubuntu <i>on their production servers</i>.

Debian Stable

CentOS 4.4. (I'd upgrade to 5, but it's a huge pain on SliceHost at the moment.)

Amazon EC2 Ubuntu 7.10 gutsy AMI built using code customized by Eric Hammond &#60;ehammond@thinksome.com&#62; For more information: <a href="http://ec2gutsy.notlong.com" rel="nofollow">http://ec2gutsy.notlong.com</a>

Ubuntu 7.10 server

Solaris whenever I can, CentOS5 otherwise. Solaris has excellent threading and some apps I run for customers therefore run better on Solaris.

Not linux.. FreeBSD

Debian

RHEL4, though the site's a few years old. Would do RHEL5 if it was today.<p>Personally, I run Debian. But RedHat really does a good of not breaking stuff at the cost of less frequent updates.

Gentoo all the way.

CentOs 5.0, for the easy Virtualmin GPL install

rPath ( <a href="http://www.rpath.com/corp/" rel="nofollow">http://www.rpath.com/corp/</a> ) with custom patches.

I need reliability, with a bias on using source code to produce my running binaries.<p>Of course, I run NetBSD.

Slackware

I use FreeBSD (not GNU/Linux), Debian and Ubuntu on my servers.

Gentoo on two, ArchLinux on one

Gentoo, both desktop and server

Debian Etch

Fedora core 8 Solaris Ubuntu

Slackware.

CentOS 5.

I use Ubuntu 7.10 64bit.

CentOS 5

Centos

Debian testing

Fedora 8

OpenSuSE

Gentoo