10-03-2023 10:49 PM
In 2020, I created a post about this issue (https://community.infoblox.com/t5/nios-dns-dhcp-ipam/infoblox-stop-responding-when-losing-internet-c...) which was promptly solved.
We ran into (as far as I know) the exact same issue, but this time with some limitations that we don't know how to deal with.
I contacted IB's support, but maybe I can get help here also.
Instead of re-writing everything, here is a copy/paste of what I've sent them with the description of the issue.
- There is plenty of memory available, is there any way to go higher than 40.000 for the "Limit number of recursive clients to" parameter ?
- Can we solve that by looking at Security feature "Enable holddown for non-responsive servers", "Limit recursive queries per server" or "Limit recursive queries per zone" ?
These parameters are currently disabled. If it is what we need, what would be good values for them knowing that we uses Global Forwarders (toward our DNS security upstream providers) ?
I think it's a bit different to use these parameters in the Forwarders scenario.