hallo, I have general quiestion about use of DNS checks.
I mean now checks of client IP. It's about PTR records, A records and maybe
A=PTR checks.
Q:
1. Do you use it?
2. If yes, what type do you use?
a) only PTR check [reject_unknown_reverse_client_hostname]
b) or PTR=A check [reject_unknown_client_hostname]
3. What are your experiencies and opinion to it?
Thanks a lot for your answers.
Tomas B.
