For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Meng_112830's avatar
Meng_112830
Icon for Nimbostratus rankNimbostratus
Apr 12, 2014

LTM DNS zone Express and Cache

I need to fully understand on LTM DNS zone express and cache features in LTM, I read some documents on how to enable dns express zones and cache in LTM but that it leads me into confusion, do I need to have GTM running for the DNS express zones and cache works with LTM?

 

in my scenario I don't have GTM license enabled only LTM is running in my box and I have DNS virtual server 192.168.200.200 "with dns pool members of 192.168.200.10 and 192.168.200.11"

 

I want to enhance my DNS performance and cache, now I created DNS express zone with target IP of 192.168.200.200 which is the virtual address of the DNS server and associate the DNS profile to DNS VIP. Will this work without GTM? do I need to have GTM enabled and configure something for this setup works.

 

Thanks

 

application delivery
BIG-IP DNS
LTM

1 Reply

  • James_Thomson's avatar
    James_Thomson
    Icon for Employee rankEmployee
    Apr 17, 2014

    DNS Express

     

    F5 acts as a slave server to your authoritative DNS server and answers out of memory at a very high rate.

     

    DNS Cache/Resolver

     

    Can perform transparent caching or can be a caching resolver itself (no DNS servers behind it).

     

    To get these two features, you need to either have purchased the GTM module or the DNS module (F5-ADD-BIG-DNS) cheaper than full GTM. GTM module (F5-ADD-BIG-GTM) gives you full GSLB and these DNS services