GTM as Authoritative DNS

Question

Hello&nbsp;
We have two data centers HQ and DR. Each Data center has its own DNS server. We want to migrate these 2 DNS servers in both DC to two GTMs each in each DC. And in the same time, to have redundancy. So, in case the GTM in HQ fails or HQ fails itself, users will use GTM in DR and the servers in DR as well . For example, if we have a certain FQDN : xyz.company.com and this is resolved to IP1 in HQ from its DNS and resolved to IP2 in DR from its DNS. So, how this can be done ?&nbsp;

simon_blakely · Answer

You can use a zone transfer to import the data from the existing DNS into the GTM (zonerunner/bind).&nbsp;
Replacing a DNS Server with BIG-IP DNS&nbsp;
You define your GTM server pools based on Global Availability with HQ virtual servers as a preference, and create WideIPs (e.g xyz.company.com) pointing at those server pools.&nbsp;
Integrating BIG-IP LTM with BIG-IP DNS systems&nbsp;
At a global DNS level, you define both the HQ and DR GTMs as nameservers, so that if HQ is down, queries will go to DR.&nbsp;

Forum Discussion

GTM as Authoritative DNS

Recent Discussions

Yubikey APM and AzureAD question

Help configuring NAT64 on a BIG-IP LTM

BIG-IP syslog - send logs with UTC timezone, while APM is in different timezone

GTM answer based on pool member status

Help me understand Load Balancing

Related Content

The Power of &: F5 Hybrid DNS solution

Export GTM/DNS Configuration in CSV - tmsh cli script

Logging of DNS Requests and Responses without a DNS license

Export GTM/DNS Virtual Servers Configuration in CSV - tmsh cli script

Using F5 Distributed Cloud DNS Load Balancer health checks and DNS observability