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ali haider
Asked: 2018-04-02 17:31:33 +0800 CST

fail2ban does not start up on ubuntu 16

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I installed fail2ban on ubuntu 16 on which I also have ufw. I copied jail.conf to jail.local in /etc/fail2ban. After this, I tried starting fail2ban but I get the following error in the logs (using the command systemctl status fail2ban.service):

fail2ban.service: Control process exited, code=exited status=255
abcdefgh systemd[1]: Failed to start Fail2Ban Service.
fail2ban.service: Unit entered failed state.

Any thoughts on how I go about troubleshooting this issue further?

Update The change I made to the jail.conf file was for the sshd section: 

[sshd]
enabled = true
port = valid-ssh-port (this is a number but not the default port)
filter = sshd
logpath = /var/log/auth.log
maxretry = 5
fail2ban

1 Answers

  1. Best Answer

    There was an additional ssh section in the jail.local file which I had not checked for beforehand. Once I removed the additional ssh section, the config worked and I was able to run fail2ban.

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