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Forum Discussion

l_lupos's avatar
l_lupos
Icon for Nimbostratus rankNimbostratus
Jun 25, 2018

F5 GTM/DNS Sub domain delegation

Hi Everyone,   Just a quick question, let's say I have an existing domain entry on my DNS Server that directs to a specific A record (202.1.1.1). Then I decided to use a GTM for GSLB, should I re...
application delivery
BIG-IP DNS
Anesh's avatar
Anesh
Icon for Cirrostratus rankCirrostratus
Jun 25, 2018

If you are planning to use the GTM to do DNS loadbalancing for , then Yes you must delete the A record and point it to the CNAME

 

IN CNAME

 

The downtime will depend on the TTL for the A record