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=0 -+- 2000-03-01:1 -+- Kernel Corner -+- How to make Linux ignore a ping? -+- a.schifano@linuxfocus.org -+- Antonio Schifano -+-  -+- email -+- English -+-  -+- Mozilla/4.7 [en] (X11; I; Linux 2.2.14 i686) -+- 5483
Sometimes it can be useful to hide a Linux machine a bit. Here
is how you can make Linux ignore a ping:<br><br>
Simple, to turn answers to icmp_echo off type:<br>
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all<br>
to turn it on again use:<br>
echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_all<br>