Fail2ban installation 24.04LTS: Difference between revisions
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systemctl restart fail2ban.service | systemctl restart fail2ban.service | ||
Check everything is good with... | |||
fail2ban-client status | |||
To find a specific ban | |||
fail2ban-client status <named of the jail> | |||
To remove a ban | |||
fail2ban-client unban <ip> | |||
Latest revision as of 17:45, 18 March 2024
OK lets bolt down a bit against brute force SSH attacks from the internet idiots, before we go any further.
sudo apt install fail2ban sudo systemctl stop fail2ban.service
The fail2ban service keeps its configuration files in the /etc/fail2ban directory. There is a file with defaults called jail.conf. Since this file can be modified by package upgrades, we should not edit this file in-place.
We need to create a local customisation file:
nano /etc/fail2ban/jail.d/solaris.local
Once the file is created, we can open it for editing We can make a few changes to make things work better.
[DEFAULT] ignoreip = 127.0.0.1/8 10.3.0.0/16 ::1 bantime = 2h maxretry = 5 destemail = mark@scottworld.net sender = root@scottworld.net action = %(action_mwl)s [recidive] enabled = true [postfix] enabled = true [apache-auth] enabled = true
Restart fail2ban service
systemctl restart fail2ban.service
Check everything is good with...
fail2ban-client status
To find a specific ban
fail2ban-client status <named of the jail>
To remove a ban
fail2ban-client unban <ip>