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  • #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.

    #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:

    [code:1:8f6de9b9a2]
    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
    [/code:1:8f6de9b9a2]

    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:

    [code:1:8f6de9b9a2]
    www IN CNAME example.com.[/code:1:8f6de9b9a2]

    This points ‘www.example.com’ to ‘example.com’, so now http://example.com/ and http://www.example.com/ will match.

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