I have two servers, 126.96.36.199 and 188.8.131.52, that were connected across a LAN. They are the components of a DMZ where 184.108.40.206 is the wen server and 220.127.116.11 the application server. 18.104.22.168 is running Ubuntu 11.04 while 22.214.171.124 is running Ubuntu 11.10. I had to restart 126.96.36.199 because Unity froze up. (I have since replaced it with Gnome.) Ever since I started it up again, I cannot get connectivity with 188.8.131.52. When I try
PING 184.108.40.206 (220.127.116.11) 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 18.104.22.168 -j ACCEPT sudo iptables -A OUTPUT -d 22.214.171.124 -j ACCEPT sudo iptables -A INPUT -s 126.96.36.199 -j ACCEPT sudo iptables -A INPUT -d 188.8.131.52 -j ACCEPT
but it has no effect. How do I fix it?