Forum Discussion
gapexx_138014
Nimbostratus
Nimbostratusf5 GTM as DNS Express and Caching server
Hello.
Our costumerwould like to use f5 GTM as DNS Express server for their own zones. Because they are small ISP they would also like to implemtent f5 as cache server and doing recursive lookup...
Hi Gapexx, I created a Listener and notice GTM creates a port 53 virtual server. Looking at that virtual server more closely, I see an option for "Source". The help page mentions:
Specifies an IP address or network from which the virtual server will accept traffic. For this setting to work, you must specify a value other than 0.0.0.0/0 or ::/0 (that is, any/0, any6/0). In order to maximize utility of this setting, specify the most specific address prefixes covering all customer addresses and no others.
Is this something you can test?
Kevin
gapexx_138014I can try to test this in ma lab, but this will also limit traffic to dns express part whiich has to be available to everyone, since f5 is authoritative for those zones
