系统环境Centos5
一、
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/etc/rc.d/rc.local中增加一行
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all
0表示允许
1表示禁止
关键词:linux禁ping,和允电报下载linux






[root@linuxzgf ~]# echo 1 >/proc/sys/net/ipv4/icmp_echo_ignore_all
二、和允系统允许ping
[root@linuxzgf ~]# echo 0 >/proc/sys/net/ipv4/icmp_echo_ignore_all
此上两条命令的和允效果实时生效,创建、和允
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