How to setup DNS resolution on GTM
Hi All, I know this may sound simple but I'm having a mind-block on how to setup the gtm to act as a DNS server. I've created two pairs of GTMs, each pair being HA sync'd and all four running gtm sync. I've added in the LTMs and it all looks good. Now I need to create DNS entries on the GTM but can't seem to figure out how to link up the listener, virtual server, wide-IP and pools to do this. In this setup the GTMs will not connect to an internal DNS server and they sit behind a firewall so they use private IP addressing. Would someone be good enough to briefly describe how the various elements work together. I'm sure I'll be able to work it out once I have a rough idea of the steps involved.
Thanks in advance.
If you've added your LTMs into the GTMs as servers you should then be able to start creating pools for your wideIPs using the virtual server contained on your LTM "server"(GTM context) provided you have checked auto discover. You then associated your pools with the appropriate wideIPs. If your GTM will be hosting the whole zone that your wideIPs live in you will probably also need to either setup the zone in ZoneRunner or use an off box DNS server that will be used for a DNS-Express zone to act as an authoritative slave for. Below are some links to some helpful information.
https://devcentral.f5.com/articles/v11-dns-express-ndash-part-1 https://support.f5.com/kb/en-us/products/big-ip_gtm/manuals/product/gtm-concepts-11-5-0/4.html