Can this be done from FreePBX? Searches have resulted primarily of the below solutions but none work for me.
echo “1” > /proc/sys/net/ipv4/icmp_echo_ignore_all
echo “0” > /proc/sys/net/ipv4/icmp_echo_ignore_all
You can add following line to /etc/sysctl.conf file:
Append following line:
net.ipv4.icmp_echo_ignore_all = 1
You could also block it with iptables rule.
I have tried with iptables rule also but box still replies to pings. Could you post the correct syntax for me please?
Take a look at this link as a starting point. Consider that this will only work if you are running iptables on your server, otherwise it will not do anything.
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