Understanding MX records

aj10001 · 05-25-2009, 02:15 PM

Howdy,

I'm fairly new to the topic of DNS and i'm having trouble getting my head around the concept of MX records. I am using fedora 9.

Let's assume that i have a the following lines in my /var/named/chroot/etc/named.conf file :

zone "astudent.com" IN {
type master;
file "astudent.zone";
};

Then some of the records in my astudent.zone file are as follows:

IN SOA ns.astudent.com. root.astudent.com.

IN NS ns
IN MX 0 mail
localhost IN A 127.0.0.1
gateway IN A 192.168.176.1
server IN A 192.168.176.100
ns IN A 192.168.176.100
mail IN A 192.168.176.100
www IN CNAME server

Question 1: I have set up everything properly so that users on my system can receive email at user@astudent.com, what kind of MX record would i need to create so that mail addressed to users @astudent.com is delivered to mail.astudent.com. ?

Question 2: What would i need to do so that the mail server running on my machine should receive mail for the domain name (astudent.com), as well as the name mail.astudent.com ?

Thanks for any help in advance,

Cheers,

Aj.

david1941 · 05-26-2009, 07:01 AM

Your SOA should probably be astudent.com as that seems to be the zone you are describing.

If so, the mail would then be sent to 192.168.176.100 for any user at astudent.com. That means your machine is 192.168.176.100?\

Dave

PS As these are all private addresses, no one outside your net would have access to your server.