From the UT3 mailing list:
"Thanks for your patience, everyone.
The Linux server is now available for download. It is built from the 1.1
patch, and is network compatible with all retail UT3 clients.
We feel pretty good about this build, but it should be considered beta for
now, as it hasn't had the full wrath of the Internet applied to it yet. :)
Grab it from here:
Arizona mirror (GoDaddy):
http://treefort.icculus.org/ut3/UT3-linux-server-12172007.bin
California mirror (Dreamhost):
http://0day.icculus.org/ut3/UT3-linux-server-12172007.bin
size:
1744621651 bytes
md5sum:
70149f802efc087455a87f92c1485982
UT3-linux-server-12172007.bin
As the download is 1.6 gigabytes, I assume that everyone is going to
saturate those servers...I can upload individual copies to those that will
mirror with high bandwidth from my Chicago-based server (please email me
off-list), and encourage others to post mirrors here, too.
Comments and bug reports can go to this mailing list for now; we'll move to
Bugzilla if need be, later.
To install: set the download to be executable and run it; it will show the
license text and then unpack itself.
Have fun!
--ryan."
http://www.linuxlinks.com/portal/news/article.php?story=20071218133137884