At 10:37 18/12/00 -0500, you wrote:
>Hi -
>In setting up a backup mail server to store and forward for a primary mail
>server, one of the steps Ipswitch recommends is to add an entry in the HOSTS
>file on the backup mail server in this format:
>
>123.123.123.123 thedomain_name.com
>
>I am wondering how this configuration will work if I also have a DNS
>record for
>the domain of
>
>@ A 123.123.123.111
Why do you wonder?
NT hosts records and DNS A records provide the same service: the
mapping of a hostname and an ip addresses
>(note that the IP address in the DNS record is different than the one in the
>HOSTS file, because the DNS record is pointing to the IP address of a website,
>while the HOSTS record is pointing to the IP address of the primary
>mail server)
That's correct, the NT hosts file is used by Imail to know IF a "RCTP
TO: @domain" is to be accepted for relaying and WHERE to relay to.
>I assume that the HOSTS file will ONLY be used by Imail,
It will be used by all NT applications that do DNS lookups with winsock calls.
>and that Imail will check the HOSTS file before checking DNS,
It will. Checking hosts files before looking DNS is the convention
for both NT and *nix machines.
>so the above configurations will not conflict.
Yep, but what other tcp/ip applications are you using on the NT Imail machine?
>Is anyone doing this? If so, do you think I am making correct assumptions?
If you have browser on the NT Imail machine and try to browse to
thedomain_name.com
It will go to 123.123.123.123. can't avoid that.
So just remember to browse to
www.thedomain_name.com
so the browser will NOT find that domain in hosts file, and will do a
DNS lookup.
Len
http://BIND8NT.MEIway.com : Binary for ISC BIND 8.2.3 T9B for NT4 & W2K
http://IMGate.MEIway.com : Build free, hi-perf, anti-spam mail gateways
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