BIND with failover?

[Scotta98]

Hi guys,

Please be gentle with me because I'm a relative newbie to bind and I have some issues I would like to resolve.

Here is our problem/question. We have a webserver (box 1) which is our production site and we have a clone (box 2) which is to be used as a failover site. The idea is to have box 2 kick in if box one stops responding for any reason. Another scenario is to be able to quickly take box 1 down for maintanence and have box 2 fill its shoes. We have about 6 sites setup and all are Master Zones. Here is the hardware setup;

Box 1
OS: FC3
NS Master: BIND 9

http://www.production.site

Primary NS at registrar

Box 2
OS: FC3
NS Master 2: BIND 9

http://www.failover.site

(mirror of production)
Secondary NS at registrar

All we want is an easy failover system and a way to immidiately point the domain to box 2 when we run maintenance.

Any help would be very much appreciated. Thanks.

 

[Scotta98]

Bump. Anyone?

 

[ChrisAC]

You could keep a low TTL on the domain so that you could repoint the A record should box 1 go down. However, this will have a knock on effect on the load to your servers which will receive more DNS requests for that domain as cached records will expire more quickly.

Chris.

**********************
Chris A.C, CCNA, CCSA
**********************

 

[Koonan]

DNS can't do it alone. You need to use some sort of load balancing technique. This would be a hardware or software solution. There are many out there.

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