DDNS Registration behind Load Balancer

Kevin Darcy kcd at chrysler.com
Thu Jun 26 23:05:29 UTC 2008

Chris Buxton wrote:
> On Jun 26, 2008, at 1:53 PM, Linux Addict wrote:
>> Greeting!!
>> I am configuring a DNS setup where its mix of Linux and Windows hosts.
>> I decided to go with BIND rather than MS DNS Server. I have Windows
>> hosts doing dynamic registration to the BIND Master Server.
>> The next step on my project is add Load Balancer with 3 servers. I was
>> thinking of one master and 2 slaves initially. Then it struck me that
>> when a Windows Host does DDNS registration against the Load Balancer
>> VIP, and when the Load Balancer redirects the traffic to one of the
>> slave server, it will not accept the changes as its only secondary.
> Not true. 'allow-update-forwarding { any; };'.
That'll work as long as the OP only has masters and slaves, but doesn't 
allow the flexibility to add caching-only resolvers in the future.

I still think the best approach is to have the DHCP server(s), rather 
than the clients themselves, register the client names in DNS. It also 
raises less security issues.

- Kevin

More information about the bind-users mailing list