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Old 03-26-2006, 12:51 PM   #1
Registered: Oct 2005
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Disabling ICMP (Ubuntu/Debain based systems)


Have been digging around a little here and there trying to find an answer for my question the last couple of weeks.

Can you disable ICMP (So that someone cannot ping your box) for a Ubuntu/Debain based system. Had no problems at all turning off ICMP for my Fedora box.
Old 03-26-2006, 01:42 PM   #2
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Use iptables
Old 03-26-2006, 02:44 PM   #3
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Are you using sysctl? In /etc/sysctl.conf you can add net.ipv4.icmp_echo_ignore_all = 1 and restart sysctl with sysctl -p
Old 03-28-2006, 10:01 AM   #4
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Thanks gilead!!


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