Hi Team, We are not able to ping the servers after the upgradation is finished eventhough services are running fine. Is it disabled?? or we have to do something..
Hi Jemma, yes, it is resetting to its default rulesm, but in the file you mentioned, I haven't able to find the custom-firewall .Can you please suggest is there any other way.
In the mentioned tutorial it says to add the line. So I guess it is correct that it is not there and you can just add the line.
I solved the problem with the following hint from David Poirier:
Edit the file /etc/sysconfig/iptables-config
to yes and then add the rules:
iptables -I INPUT 1 -p icmp -j ACCEPT
If you now restart the service, the current configuration is saved.