[Asterisk-Users] Warm standby boxes - keeping config syncronised?

[David John Walsh]

Ok probably not strictly an asterisk question.

I have an asterisk box, which is running some non-critical telephones
in our organisation, and if it fails it fails.

However comming from a telecoms background I always want to make
things recoverable quickly.  Since I have little budget, and down time
isn't an issue my thoughts are as folllows

2 servers with 2 NIC's each, one nic for managment, one for traffic. 
1 NIC on each machine has the same IP address, but only one is plugged
into the network at any one time.

2 PRI's that are plugged into the machine that is live to traffic.

Apart from the managment NIC having different IP addresses they are
configured identically

If I make a change to the in-service server, how do I automagically
get the other server to take a copy of it?

I'm not a linux man by trade, so if you say set up master / slave
would you be kind enough to suggest an aplication and how it would be
implimented.

Thanks for any ideas