Using Old OSes On Servers

Of all the linux distros or BSD's to choose from, I would say Fedora
ranks at the bottom for me as far as production server use.  It's
really meant as a testing OS, to test new ideas before they get
incorporated into RHEL. While there are issues with any old
operating system as far as community or vendor support, Fedora
releases in particular have a very short lifespan (Fedora Legacy,
which had been providing support for old Fedora releases, was shut
down in 2007). I mention this because I have a client that contacts
me every few months for help with some intractable server
issue. From just a security perspective, this is scary, FC5 was
released in 2006:

[root@www log]# uname -a
Linux hostname 2.6.9-023stab051.3-enterprise #1 SMP Wed Nov 4 19:28:06 MSK 2009 i686 i686 i386 GNU/Linux
[root@www log]# cat /etc/redhat-release
Fedora Core release 5 (Bordeaux)