troubleshooting Question

Linux fail2ban not starting up after yum update on CentOS 5

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shaunwinginFlag for South Africa asked on
LinuxLinux OS DevLinux NetworkingLinux Distributions
23 Comments3 Solutions1746 ViewsLast Modified:

This is the current issue:

[root@messaging ~]# service fail2ban status
Fail2ban (pid 30613) is running...

It just hangs there - have to hit Cntl-C to proceed.

How can I tell yum to downgrade fail2ban? I upgraded wth yum update fail2ban
How can I remove fail2ban and re-install?
Also how can I debug why its not starting up. It did fine before the yum update.

Some more info:

[root@messaging ~]# service fail2ban start
Starting fail2ban:      
Have to hit Cntl-C to continue and shows an OK.

[root@messaging ~]# ps -ax | grep fail2ban
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
 4348 pts/6    S+     0:00 grep fail2ban
30613 ?        S      0:00 /usr/bin/python /usr/bin/fail2ban-server -b -s /var/run/fail2ban/fail2ban.sock -x
[root@messaging ~]#
[root@messaging ~]# fail2ban-client -V
Fail2Ban v0.8.4

Copyright (c) 2004-2008 Cyril Jaquier
Copyright of modifications held by their respective authors.
Licensed under the GNU General Public License v2 (GPL).

Written by Cyril Jaquier <>.
Many contributions by Yaroslav O. Halchenko <>.
[root@messaging ~]#
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