(Simple?) High availability question

[Madison Kelly]

Hi all,

   I am not looking for instructions, just pointers. :)

   I have two new servers coming in (identical) and I want to have the 
two of them share the loads of mail/web/pgsql/bind duties. I've got a 
dedicated firewall that SNAT's them already, and was hoping I could use 
it to do my load balancing/failover.

   As I understand it, this is feasible as the firewall (or whatever 
it's called in this role) keeps an eye on the two servers and while both 
are up it splits incoming traffic between them. If/when one fails, all 
traffic gets routed to the good server.

   So if there are any pointers, specially Debian-based how-tos, I would 
be very happy! I'll be running either Debian Etch or Ubuntu Feisty 
(leaning to the former, but worried about Debian-proper's future).

   Thanks all!

Madi
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