Restart fail2ban using systemd condrestart #120
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The previous code does two things:
1. Restart fail2ban ONLY if it's running with `fail2ban-client ping`
2. Re-add the fail2ban chain that was removed due to the ferm restart using `fail2ban-client`
However, using `fail2ban-client reload` does not re-add the `f2b-*` chains for me. MRE:
```
~# iptables -nvL | grep f2b
15 1124 f2b-sshd tcp -- * * 0.0.0.0/0 0.0.0.0/0 multiport dports 22
Chain f2b-sshd (1 references)
~# systemctl start ferm
~# iptables -nvL | grep f2b
~# fail2ban-client reload
OK
~# iptables -nvL | grep f2b
```
Restarting the fail2ban service does re-add these chains:
```
~# systemctl restart fail2ban
~# iptables -nvL | grep f2b
3 236 f2b-sshd tcp -- * * 0.0.0.0/0 0.0.0.0/0 multiport dports 22
Chain f2b-sshd (1 references)
```
Aside from this, the current `fail2ban-client ping` logic can be simplified by using systemd `condrestart`, which restarts the service only when it's running. This does mean that this commit assumes fail2ban runs as a systemd service.
I do not use your project, so I am not interested in maintaining or updating this PR. In case losing support for non-systemd systems is unacceptable, feel free to close it.
WilliamDEdwards
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The previous code does two things:
fail2ban-client pingfail2ban-clientHowever, using
fail2ban-client reloaddoes not re-add thef2b-*chains for me. MRE:Restarting the fail2ban service does re-add these chains:
Aside from this, the current
fail2ban-client pinglogic can be simplified by using systemdcondrestart, which restarts the service only when it's running. This does mean that this commit assumes fail2ban runs as a systemd service.I do not use your project, so I am not interested in maintaining or updating this PR. In case losing support for non-systemd systems is unacceptable, feel free to close it.