default DNS zone entries

This topic has 1 reply, 2 voices, and was last updated 23 years, 6 months ago by Camelot.

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April 24, 2003 at 11:39 pm #355526

Anonymous
Participant

so here’s another one for all those DNS jedi out there.

how do you set up your web server to default a http://example.com to resolve to http://www.example.com?

I am under the impression that this is done in the DNS setup with some CNAME and/or A record voodoo. Please advise.

for what it’s worth, I am using webmin for the BIND DNS administration.

May 18, 2003 at 3:22 am #355628
Camelot
Participant
In terms of the actual DNS records required to make this work:

In your zone file, at the beginning you’ll have something like this:
```
example.com           IN SOA  ns.example.com. admin.example.com. (
                                2003051701 ; serial
                                10800      ; refresh (3 hours)
                                3600       ; retry (1 hour)
                                604800     ; expire (1 week)
                                14400      ; minimum (4 hours)
                                )
                        NS      ns.example.com.
                        NS      ns2.example.com.
                        MX      10 mail.example.com.
                        A       12.34.56.78
```
Note the last line. It creates an A record for the domain entry ‘example.com’ and equates ‘example.com’ to 12.34.56.78

Then you can add a CNAME for www:
```
www       IN    CNAME  example.com.
```
This points ‘www.example.com’ to ‘example.com’, so now http://example.com/ and http://www.example.com/ will match.
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