Fabien GARZIANO wrote:
And for dns, I'm sorry, I typed it too fast and when I meant no 'dns' i
also meant no 'named' process.
On mail servers it's usually a good idea to run a local nameserver, even
if you have no zone files to publish (e.g., the "caching nameserver"
named configuration that comes with RedHat-flavored distributions).
Without a local nameserver you have to make a request against the ISPs
servers for every message you receive. If you run a local, caching
server, once you've looked up an address it's kept locally which improves
performance on a busy mail server.
If you run a caching server, make sure that /etc/resolv.conf has
127.0.0.1 as its initial nameserver address. Add the ISPs addresses
below this in case your local named falls over.
Peter
