hostname question

["Pete Kay" <petedao@gmail.com>]

Hi,

I am currently having 3 servers in the lan which is using dynamic IP addresses.  Each time the router is rebooted, I have to reconfigure all the db ips and server ips.  

Therefore, I want to assign host name to each machine such as "db" , "ser" etc, so that I don't use 192.168.x.x in my configure anymore.  

Is this something that can be done?  Could someone please give me some pointer on how to do it?

Thanks,
Pete