Red Hat Bugzilla – Bug 984857
complete server isolation; can ping, but cannot telnet; Only by a directly connected local terminal.
Last modified: 2013-08-01 08:46:22 EDT
Description of problem:
There was a complete server isolation (in the network). Ping was there but telnet was not working and there were no indications of slowdown or any of the other normal identifiers that something was about to fail.
Version-Release number of selected component (if applicable):
Linux localhost.localdomain 2.6.9-78.ELsmp
i686 athlon i386 GNU/Linux
Steps to Reproduce:
I am not a linux expert (Unix is OK) I was not able to clearly determine what was happening. But as a guess, the ip stack was down but the NIC still retains it's ip configuration, so ping works but nothing else. Looking for a reason of isolation and how can such isolations can be avoided? /var/log/messages attached.
I cannot see any connection to the acl package. I suspect your firewall is improperly configured. I am switching the component to iptables...
Does connection with ACL package is a MUST?
This has anything to do with the Server Isolation.
I am looking for the reason of server isolation. Please let me know what other logs are required?
The Bug is more or less related to 491432.
Bug No. 984857 can be closed.
Closing as NOT A BUG due to comment 3.