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fail2ban and Webmin firewall rules gone after restart?
Hi,
It used to be different, as far as I remember, but for a while I noticed that the firewall rules added by Webmin don’t get added at reboot, and that fail2ban doesn’t start (most likely because var/run is cleaned up, and the dir var/run/fail2ban is removed at reboot.)
The init script of fail2ban even creates the dir, but still, no luck.
Now, I know, and when I restart I know what to do, but in the event the droplet restarts without my knowledge (as happened once) I may run into problems.
How can I get fail2ban running and the Webmin firewall rules applied after a restart?
TIA
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There’s automatically starting fail2ban (service fail2ban start), and then there’s reloading the iptable rules that fail2ban added, which is a bit tricky because reloading stale or broken rules could mess up your iptables and might accidentally lock you out. The command to filter the fail2ban iptable rules is something like:
Someone else will have to explain how to preserve and safely restore those rules.