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Old 02-17-2009, 01:39 AM   #1
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DNS BIND Question (Load Balancing)


This is my first post.

I would like to know if the DNS setup that I'd like to do is possible with BIND. My experience in BIND is not yet good enough.

Here is the setup:
I have two hosts, HOST_A and HOST_B with one DNS server in the middle and two web servers, WEB_A and WEB_B. Let's say they are in the same domain, "". If HOST_A perform a DNS query with the domain "", the DNS give the IP address of WEB_A. Then, if HOST_B, the DNS will give the IP address of WEB_B.

Is there a way in BIND to make 2 regions/profile where can choose in 2 separate IP pool of web servers and give to the hosts based according to host's IP address? I know this kind of setup is possible in f5 3-DNS as load balancing solution, but I'd just like to know if this is also possible with BIND alone in a single box.

Any ideas or workaround on this kind of setup?

Thanks in advance.

Old 02-17-2009, 02:28 AM   #2
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Hi and welcome to LQ
but I'd just like to know if this is also possible with BIND alone in a single box.
Bind "alone" can do "round-robin". That is if a client asks for it will point it to webA, the next request will point to webB, the third to webA and so on.
If you want to point to a specific server according to the location of the client you will need the geodns patch.

Old 02-17-2009, 09:22 AM   #3
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If you're looking to do this for specific sets of IPs other than geographical locations, you can do it with view sections in named.conf. You define an ACL of IP addresses and then create a match-clients statement that includes the appropriate ACL.


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