Is there a way I can use ipfw to disallow ICMP from anyone, but root?
(FreeBSD 4.7R) I tried this:

${fwcmd} -q add 4 allow icmp from any to any icmptype 0,3,8,11 in via
${fwcmd} -q add 4 allow icmp from any to any uid root
${fwcmd} -q add 4 deny log icmp from any to any

But that, obviously, does not do what I want it to, as it keeps denying
everything going out. It may not even be possible to restrict ICMP that way,
but it never hurts to ask. :)


- Mark

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