DNS Resolver - Domain with Multiple IP's (Round Robin)
I currently have dnsmasq running on a VM with a Round Robin configuration and it works great as it provides a list of IP's and changes the order on every request. So providing a basic level of load balancing without the impact of putting a load balancer in front.
I'm trying to move this to our DNS Resolver running on pfSense. I saw in a 2016 post from @johnpoz that the only way to get a list of IP's for a given name in DNS Resolver was to leverage the custom option and do something like this:
However as far as I can tell the order never changes. Does anyone know if this possible to get this feature that dnsmasq (DNS Forwarder) supports in DNS resolver?
Not sure when I wrote that.. do you still happen to have link to that old thread handy?
If I am not mistaken its not really the requirement of ns to return them in random order, when more than one RR is returned the client should randomly pick one.. A while back unbound did not even have an option to set that... But in one of updates they did add
Which default to no... So if you set it to yes.. Then you can then get it to hand out random
I just validated this
then when you query you get back random order.
$ dig @192.168.9.253 host.example.com +short 10.10.10.1 10.10.10.2 10.10.10.3 $ dig @192.168.9.253 host.example.com +short 10.10.10.3 10.10.10.1 10.10.10.2 $ dig @192.168.9.253 host.example.com +short 10.10.10.1 10.10.10.2 10.10.10.3 $ dig @192.168.9.253 host.example.com +short 10.10.10.2 10.10.10.3 10.10.10.1
Hope that helps!
KOM last edited by KOM
Unbound examples I see talk about this option:
Edit: Haha you got it straight from the horses mouth.
hehe - beat you too it @KOM, your too slow ;) heheheh
What can I say, I'm old.
heheeh - you older than me? I turn the big double nickel here in 6 short months :( Only good thing is going to be able to get some senior discounts... The track is half price to get in for GA ;) 4 bucks vs 8... hehehe
53 in October.
So not far behind - us old guys need to stick together :)
Maybe we should start a older than 50 group here.. I am really curious how many of the regs are of a mature age ;) Lucky for us 60 is the new thirty ;) I sure and the F do not feel like mid 50's that is for damn sure..
Thank you all,
@johnpoz for reference this is the link I was referring to:
I found the rrset-roundrobin: yes and was worried it did more than what I wanted so didn't want to make the change on the product boxes.
But I have now and it's working a treat!
Wow that was back from 2016 ;) nice that still came in useful.. And now we have the new info with the round robin.. Glad it worked out for you and I could be of help..
Yup thats us old guys bitchin at the users from the balcony - heheeh ;)