Comment 2 for bug 403808

Pawel Barcik (pawel-barcik) wrote :

It is caused by iptables, and the solution is here at the end of the page:

http://www.fail2ban.org/wiki/index.php/Fail2ban_talk:Community_Portal

"fail2ban.action.action ERROR on startup/restart

I had multiple fail2ban.action.action ERROR on startup/restart. It seems there was a "race" condition with iptables. I solved the problem completely on my system by editing /usr/bin/fail2ban-client and adding a time.sleep(0.1)

def __processCmd(self, cmd, showRet = True):
beautifier = Beautifier() for c in cmd: time.sleep(0.1) beautifier.setInputCmd(c) "

adding " time.sleep(0.1)" worked like a charm for me. it extends the restart time by 20 or so seconds, but works great.