ejabberd is cross-platform, it can run on multiple platforms. This page lists all tested platforms on which people succeeded to run ejabberd on. If you want to contribute another success story, please add a comment. You also can help by providing useful remarks for your platform, if there are any. And do not forget that we will be eager to list your home-brewn packages on the download page.
Linux Distributions
OS: Arch Linux
Version: Current
Arch: x86
Ejabberd: 2.0.0
Erlang: R12B.1-1
OS: Centos
Version: Current
Arch: x86
Ejabberd: 1.1.2
Erlang: R11.5
Linux and Ejabberd
I am running Ejabberd on LINUX Mandriva 2008 with no problems! you can check it out by pointing your Jabber client to danspenguin.sytes.net. Supports SSL and TLS. Still working on the transports though.