Forwarding based on Client IPs

Matus UHLAR - fantomas uhlar at
Wed Apr 4 14:20:02 UTC 2012

>> On 04.04.12 11:54, Siju George wrote:
>>> Currently I am using Bind9 for DNS.
>>> I wish to do the following forward.
>>> 1. Forward to domain Name Servers based on client IPS.
>>>   a. Forward one set of LAN users to OpenDNS DNS servers soo that I
>>> can restrict them
>>>   b. Forward a second set of LAN users to google DNS server
>>>   c. Forward a third set of LAN users by default through OpenDNS
>>> but for some domains through google DNS.

On 04.04.12 12:33, Siju George wrote:
>The only reason I need to forward then to OpenDNS (
> ) is because I use their filtering.
>I guess I can avoid forwarding to google dns and resolve them with bind itself?

I guess you could even do the opendns filtering yourself, if opendns will 
provide you required data (and they are available for BIND as RPZ 
zones). I don't know if opendns provide such feature. However, who 
needs to use such filtering, should access opendns services directly, 
not through other server - I guess opendns filters depending on source 
IP, which will be the same for all clients using your dns server.
Matus UHLAR - fantomas, uhlar at ;
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