Disable The Ping Response On Linux?

Sometimes you may want to disable ping response for many reasons, may be for a security reason… This article explains how do I disable the ping response on Linux ?

Disable ping response Temporarily

To disable the PING response, login as root and type the following command
# echo 1 >/proc/sys/net/ipv4/icmp_echo_ignore_all

To reenable the PING response do this:
# echo 0 >/proc/sys/net/ipv4/icmp_echo_ignore_all

Disable ping response Permanently


Edit the /etc/sysctl.conf file and add the following line
net.ipv4.conf.icmp_echo_ignore_all = 1

Execute sysctl -p to enforce this setting immediately
# sysctl -p

5 comments:

Post a Comment