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Author Topic: ICMP or NOT?  (Read 1144 times)
nutballs
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« on: December 11, 2009, 10:53:17 AM »

So my little escapade regarding my servers not being able to see themselves on WAN made me revisit some things.

I, as a rule, have blocked ICMP to anything but the firewall generally. Currently, I even have ICMP blocked on everything but the rootIP of my block. So if you ping something like 4sp.in, there is no response. This also means, no tracert, etc.

Is there any real reason to allow ICMP for a domain?
Anything being "hurt" by blocking it? Really all I care about is searchengines and accessibility. I could give a shit about RFCs and "proper" and anything else that doesnt actually affect real people.
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perkiset
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« Reply #1 on: December 11, 2009, 11:50:17 AM »

All blocked, ICMP stops at the firewall. No issues AFAIK
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