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Should I block ICMP_IN and ICMP_OUT




Posted by kshazad86, 08-29-2012, 12:02 PM
I'm using ConfigSever Firewall, and just wondering if anyone has these two settings enabled or disabled, and if there are any drawbacks of blocking ICMP_IN and ICMP_OUT?
Posted by BestServerSupport, 08-29-2012, 12:37 PM
The ICMP protocol facilitates the use of important administrator utilities such as ping and traceroute, but it can also be manipulated by hackers to get a snapshot of your network It's not at all a bad idea to block ICMP IN and OUT in the server.
Posted by lynxus, 08-29-2012, 12:58 PM
Blocking Inbound is probably a good idea. But outbound I never block. Its handy to use when troubleshooting connectivity.


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