topic Re: Fun fact, DNS errors in Dynatrace tips

Fun fact, DNS errors

henk_stobbe — Tue, 13 Jun 2023 06:20:00 GMT

Hello,

If you see DNS errors on a HOST, and start tracing to get the perpetrator. It could be that you discover that OneAgent is trying to connect to an ActiveGate that is not available on the current network (-;

Then you know your time has come to implement "Network Zones":

https://www.dynatrace.com/support/help/manage/network-zones

KR Henk

Re: Fun fact, DNS errors

AntonioSousa — Fri, 12 May 2023 11:23:19 GMT

@henk_stobbe

Great fun fact!

Re: Fun fact, DNS errors

henk_stobbe — Mon, 12 Jun 2023 11:57:49 GMT

More fun (-;

Oneagent does IPV6 queries, does anybody know how to turn this off?

KR Henk

Re: Fun fact, DNS errors

Julius_Loman — Mon, 12 Jun 2023 12:02:22 GMT

I believe this is due to the OS itself, configured to support IPv6. Depending on your case you can configure the ActiveGate to announce only IP address instead of hostname. The OneAgents won't resolve the hostname.

Re: Fun fact, DNS errors

DanielS — Mon, 12 Jun 2023 12:09:45 GMT

Hello @henk_stobbe. You can deactivate the IPv6 stack if you are not using it inside your network.

Re: Fun fact, DNS errors

henk_stobbe — Mon, 12 Jun 2023 14:42:33 GMT

I will discuss with the customer! Great replies thx!

Re: Fun fact, DNS errors

AntonioSousa — Mon, 12 Jun 2023 15:57:16 GMT

If you don't have IPv6 connectivity, disabling it is the best thing you can do 🙂