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How can I block ports from outside and allow it for internal communications?

Question asked by Shehan Wickramarachchi on Apr 25, 2018
Latest reply on Apr 30, 2018 by Shehan Wickramarachchi

Hello Guys,


One of our vulnerability scanner gave the following ports as vulnerable, so we want those ports to be blocked from outside and to be allowed from the inside for inside communications.


These are the ports


264/tcp - fw1_generic.
500/udp - ikev1.

18264/tcp - cp_ica


how can i do this?