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Forum Discussion

duckngooser's avatar
duckngooser
Icon for Nimbostratus rankNimbostratus
Jun 16, 2018

How to configure GTM with DNS at Network Solutions

We currently use Network Solutions for our internet DNS. How do we go about setting up GTM when DNS requests don't actually come to our data centers where the F5's live?  
application delivery
BIG-IP DNS
LTM
security
AceDawg_204810's avatar
AceDawg_204810
Icon for Cirrus rankCirrus
Jun 16, 2018

When setting up GTM with an existing DNS infrastructure, the location of the DNS servers is not relevant (on prem, off prem, cloud). What is relevant is the proper configuration of the Network Solutions DNS to reflect the existence of your GTM infrastructure. There are 4 basic steps that need to be considered in the overarching setup:

 

  1. Create a sub domain on your existing DNS setup (e.g. gtm.domain.com)
  2. Configure the existing DNS making GTM server(s) authoritative over the new sub domain
  3. Any DNS resource managed by GTM will be declared by CNAME (name.domain.com in CNAME name.gtm.domain.com)
  4. Configure a wide ip in GTM (name.gtm.domain.com) with the appropriate pools, load balancing methods, etc. to return responses that reflect the organization’s requirements
duckngooser's avatar
duckngooser
Icon for Nimbostratus rankNimbostratus
Jun 17, 2018

So if the current site is , to accomplish this without changing the name of the site and cert on the site to , I'd just need to set example.com to authoritative on GTM and configure the current DNS to point towards GTM as the authoritative source?