Linux disable ping and allow ping methods

Source: Internet
Author: User
Linux disable ping and allow Ping method system environment Centos5 system Disable Ping [[email protected] ~]# Echo 1 </proc/sys/net/ipv4/icmp_echo_ignore_all II  , the system allows ping [[email protected] ~]# echo 0 </proc/sys/net/ipv4/icmp_echo_ignore_all The effect of the two commands in real time, you can use a different machine ping to test whether it takes effect. ----------------------------------------------------------------------------------------------------------/etc/ Add a line in rc.d/rc.local Echo 1 </proc/sys/net/ipv4/icmp_echo_ignore_all 0 means allow 1 to disallow

Linux disable ping and allow ping methods

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