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Brant_Davis's avatar
Brant_Davis
Icon for Altostratus rankAltostratus
Oct 12, 2018

DNS Issues with Devices in Sync Group

I recently configured F5's DNS between some test DNS devices in two datacenters and trying to do a primary/standby datacenter configuration. The configuration is two virtual big-ip appliances in eac...
application delivery
BIG-IP DNS
Simon_Blakely's avatar
Simon_Blakely
Icon for Employee rankEmployee
Oct 15, 2018

Have you verified that all the devices are connecting via iquery?

 

tmsh show gtm iquery

 

Have you checked using dig to all the DNS servers?

 

dig is the recommended tool for testing DNS, as nslookup does some unexpected things.