Forum Discussion
mniemiec_63167
Nimbostratus
NimbostratusGTM/DNS - How to delegate just the main domain to GTM
Here is the issue I have with DNS/GTM. We have our own DNS servers that run the main domain i.e. test.com. Specific subdomains are delegated to the GTM's such as marek.test.com. This works great.
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All your GTMs should sync in order to provide the same domain. Each GTM might respond differently to the A / AAAA query that was delegated to him from a CNAME. Each GTM will have a wide-ip that holds the A record and behind it a pool of addresses based on your policy to resolve to.
Please see also : https://support.f5.com/kb/en-us/products/big-ip_gtm/manuals/product/gtm-implementations-11-6-0/4.html?sr=43504147
https://support.f5.com/kb/en-us/solutions/public/0000/200/sol277.html?sr=43504147