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F5 DNS what specific TCP/UDP port need to open?

T0nyP
Altostratus
Altostratus

Hi F5 Community,

We are restricting thru Port Lockdown our F5 DNS system which is facing Internet.

Does UDP/53 and TCP/4353 already enough?

Or we still need to open both TCP/UDP 53 and TCP/UDP 4353?

Thanks,

Tony

1 REPLY 1

T-Trust
Cirrus
Cirrus

Hi

So i think if you would like to enable about security DNS or zone transfer, You have to open TCP 53 and TCP 4353 for protocol IQUERY

 

Thanks you