I have two servers, 18.104.22.168 and 22.214.171.124, that were connected across a LAN. They are the components of a DMZ where 126.96.36.199 is the wen server and 188.8.131.52 the application server. 184.108.40.206 is running Ubuntu 11.04 while 220.127.116.11 is running Ubuntu 11.10. I had to restart 18.104.22.168 because Unity froze up. (I have since replaced it with Gnome.) Ever since I started it up again, I cannot get connectivity with 22.214.171.124. When I try
PING 126.96.36.199 (188.8.131.52) 56(84) bytes of data.
That is, it just hangs. I get the same result if I try
I had been saving my iptables in iptables.save but now I see that that fie is of zero size for some reason although I had a lot of rules in the IPtable. I tried to fix the problem with
sudo iptables -A OUTPUT -s 184.108.40.206 -j ACCEPT sudo iptables -A OUTPUT -d 220.127.116.11 -j ACCEPT sudo iptables -A INPUT -s 18.104.22.168 -j ACCEPT sudo iptables -A INPUT -d 22.214.171.124 -j ACCEPT
but it has no effect. How do I fix it?