Forum Discussion

Chris_18457's avatar
Chris_18457
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Jun 10, 2016

LTM DNS root reachout on mgmt, disable?

Our security group noted that our LTMs (2000s; v12.0HF1) are sending DNS queries out their mgmt interface that are being blocked by our access controls for that network. It should be noted the envir...
BIG-IP
LTM
security
Yann_Desmarest's avatar
Yann_Desmarest
Icon for Cirrus rankCirrus
Jun 11, 2016

Hi,

can you try the following procedure :

in named.conf, under line "

recursion no;
" add the following :

allow-recursion {“none”;}; 
additional-from-cache no;

Save and restart bind