Example code sharing of how to disable ping in Linux

This article mainly introduces the relevant information on the implementation examples of linux prohibiting ping. Friends who need it can refer to the

Linux implementation examples of prohibiting ping

1. The command to temporarily disable PING operation is : #echo 1>/proc/sys/net/ipv4/icmp_echo_ignore_all

2. Permanently prohibit PING configuration method

  /etc/sysctl.conf 中增加一行

   net.ipv4.icmp_echo_ignore_all=1

   执行sysctl -p生效

Firewall method:

1. Allow PING settings

     iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT

    iptables -A OUTPUT -p icmp --icmp-type echo-reply -j ACCEPT

or you can temporarily stop the firewall operation.

  service iptables stop

2. Disable PING settings

  iptables -A INPUT -p icmp --icmp-type 8 -s 0/0 -j DROP

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