Forum Discussion
AltostratusZoneRunnner and Wide IP - DNS RESOLUTION.
AltostratusHi Leonardo and All,
However i get reply from Leonardo on my Zonerunner Query. But still ..i looking for why ZoneRunner is require, what is the concept of Zonerunner ..if we already having GTM there.
Can anyone help me to understand with some practical use case example or share document.
Rgds
- JRahm
Admin
GTM has some dependencies on the underlying BIND system that is fronted by the Zonerunner utility, which as Leonardo has stated is just a GUI wrapper for BIND. BIND has no dependencies on GTM.
If I have no wideIPs defined, and I have not chosen to use the local BIND instance for anything, then Zonerunner should be completely empty. But let's suppose I add a single wideIP called www.test.local to the GTM config, with a single pool and a single virtual server in that pool with an IP address/port of 10.0.0.101:80.
When that is done, a zone is created in BIND for test.local in the file /var/named/config/namedb/db.external.test.local. with these contents:
[root@ltm3:Active:Standalone] config # cat /var/named/config/namedb/db.external.test.local. test.local. 500 IN SOA ltm3.test.local. hostmaster.ltm3.test.local. 1 10800 3600 604800 60 test.local. 0 IN NS ltm3.test.local. ltm3.test.local. 0 IN A 127.0.0.1 www.test.local. 0 IN A 10.0.0.101And zonerunner will display this zone file like this:
For the details on how the listener processes queries based on the different GTM features you have enabled, see knowledge article 14510.
GeorgeCNimbostratus
Is the feature of adding Zonerunner records when creating WideIPs version dependent? I have several domains that do not include the WideIPs in ZOneRunner. The WideIPs appear to be functioning properly (they have been in place for 9 months now). I am using version 13.1.3.4
- JRahm
It is my understanding that the expected behavior is zones/records are created as a result of the wideIP object creation. If this is not what you are experiencing on a particular version of TMOS, then I'd open a support case for clarification. If my understanding is incorrect, please post back here what you learn. Thanks,
- GeorgeC
After I posed the question, I found this bug - https://cdn.f5.com/product/bugtracker/ID613823.html
Which indicates they are aware of the situation. As it says in the bug report, the draw back is if GTM is down and Bind is not, then it will not return an IP. But if GTM is down, we got a bigger problem (at least here we do). So we will manually add the records over time.
Thank you for your quick response.
