Resolved Fail2ban error after Plesk upgrade from 12.0 to 17.5

[Pascal_Netenvie]

Hi,
After Plesk upgrade to 17.5 (on Debian 7.11) i have this error when i try to start Fail2ban :

Error: Unable to save the settings: f2bmng failed: Traceback (most recent call last):
File "/usr/bin/fail2ban-client", line 472, in <module>
if client.start(sys.argv):
File "/usr/bin/fail2ban-client", line 442, in start
return self.__processCommand(args)
File "/usr/bin/fail2ban-client", line 256, in __processCommand
if self.__ping():
File "/usr/bin/fail2ban-client", line 153, in __ping
return self.__processCmd([["ping"]], False)
File "/usr/bin/fail2ban-client", line 185, in __processCmd
client.close()
File "/usr/lib/python2.7/dist-packages/fail2ban/client/csocket.py", line 55, in close
self.__csock.sendall(CSPROTO.CLOSE + CSPROTO.END)
File "/usr/lib/python2.7/socket.py", line 224, in meth
return getattr(self._sock,name)(*args)
socket.error: [Errno 32] Broken pipe
ERROR:f2bmng:Command '['/usr/bin/fail2ban-client', 'reload']' returned non-zero exit status 1.

I triend to uninstall and reinstall Fail2ban and it's the same.
Help ...

Regards.

 

[UFHH01]

Hi Pascal_Netenvie,

did you see my former recommendation here in the forum, how to proper re-install Fail2Ban ? => #12


If the provided recommendations didn't help to solve your issues/errors/problems, pls. consider to provide some more informations for further investigations, as for example:

fail2ban-client -V

apt-cache policy fail2ban

and as well your Fail2Ban - configuration file ( as attachment, pls. ) => /etc/fail2ban/jail.conf
​

 

[Pascal_Netenvie]

HI,
Thanks for answer.
I already tried to remove Fail2ban and plesk package with aptitude remove, then delete /etc/fail2ban folder then reinstall with Aptitude.
Problem was the same.

Butr with your solution it runned ok.
So it solved the problem.

Thanks.

 

[Pascal_Netenvie]

For those who have the problem on Debian 7 this is the right CLI commands :

aptitude purge fail2ban plesk-fail2ban-configurator
rm -fR /etc/fail2ban /run/fail2ban

mkdir -p /root/addons/plesk
cd /root/addons/plesk
wget https://autoinstall.plesk.com/PSA_17.5.3/dist-deb-Debian-7.0-x86_64/opt/fail2ban/fail2ban_0.9.6-debian7.0.17031415_all.deb
wget https://autoinstall.plesk.com/PSA_17.5.3/dist-deb-Debian-7.0-x86_64/opt/fail2ban/plesk-fail2ban-configurator_17.5.3-debian7.0.build1705170314.14_all.deb

dpkg -i fail2ban_0.9.6-debian7.0.17031415_all.deb plesk-fail2ban-configurator_17.5.3-debian7.0.build1705170314.14_all.deb

/sbin/iptables -F

service fail2ban restart

After that reconnect to plesk and switch on jails.

In my case flushing iptables completly bugged one of 2 servers where i applyed this solution, i had to restart it.