I wondering.....

A server with 1 NIC card can only have 254 IP based accounts right?

That sounds correct.

That is not correct. You can put many more. It depends on the OS and Kernel.

I believe he was referring to Linux. And, everyone I've talked to says you can't have more than 254.

You can make slight changes to the kernel to allow for more. I've seen as many as 1000 IP's run on Linux and 2000 run on FreeBSD and even saw someone test 4000 on Solaris.

i never even thought of running 1000 sites per server ;)

Hmm, I've never heard of anyone doing that... I might have to look that up.

[root@VC2]:~# ifconfig faith0|wc -l
508
[root@VC2]:~#

Well, it seems like freebsd doesn't have any trouble with it at all.