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    Multiple IP Pointing to Single domain name using DNS for Failover


    Is it feasible to configure multiple IP to point to a single domain name using DNS in such a way that if one server is down, the DNS would automatically redirect the request to the next IP in the list?

    Thanks in advance.
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    Not really. You can set multiple records for a host such as a web server, but DNS software will return all the results to a client asking for records. This is how a pseudo load balancing is done known as round robin. But there's no real control of the answers.

    However, with some scripting/programming I'm sure it can be done. Maybe in a way that if the DNS server detects the client as being down, it would re-write the zone file and begin answering with the new record info.

    There are programs out there that do what you want, but I haven't really stumbled across a free one.

    http://www.simplefailover.com/
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    Originally Posted by CaptPikel
    Not really. You can set multiple records for a host such as a web server, but DNS software will return all the results to a client asking for records. This is how a pseudo load balancing is done known as round robin. But there's no real control of the answers.

    However, with some scripting/programming I'm sure it can be done. Maybe in a way that if the DNS server detects the client as being down, it would re-write the zone file and begin answering with the new record info.

    There are programs out there that do what you want, but I haven't really stumbled across a free one.

    http://www.simplefailover.com/
    Thanks for your reply, CaptPikel. Looks like I may need to explore on some other alternatives.

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