Stevenson_88156
Jul 26, 2010Nimbostratus
GTM DNS Question
Hi
I hope this is the correct forum to post this question. Our company just recently bought new F5 devices and I have a questions specifically with GTM. In all the documentation I found about GTM, I came across this only document that most clearly explains how DNS delegation works with F5 GTM.
https://support.f5.com/kb/en-us/sol...ol277.html
From my understanding, you will need to create an A record for the GTM listener (which is also the self IP), an NS record that delegate the Wide IP host domain name to the GTM listener and then a CName that points the actual web site Host to the Wide IP host domain name.
However, without understanding the inner workings of DNS, I was wondering if I could instead create the NS record with the actual web site host name to delegate to the GTM Listener and create the host name as wide IP thereby skipping the creation of the CName. An example of this is as follows:
1. Create NS Record (name.domain.com -> gtm1.domain.com)
2. Create a wide IP name "www.name.domain.com".
In addition, if in the future if we decided to create deeper sub domain layers (ie. test.name.domain.com), is it possible for us to just create new wide IP address of that name without making more changes to the Primary DNS.
Thanks.