June 21st, 2011, 04:46 AM
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.
June 21st, 2011, 09:20 AM
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.
June 22nd, 2011, 02:44 AM
Thanks for your reply, CaptPikel. Looks like I may need to explore on some other alternatives.
Originally Posted by CaptPikel