Difference between revisions of "Fail2ban and Denyhosts"
(Created page with "If you are using fail2ban to protect your computer against intruders and you accidentally bans one of your own IP addresses while experimenting with a setup use these commands...")
Latest revision as of 12:35, 26 November 2018
If you are using fail2ban to protect your computer against intruders and you accidentally bans one of your own IP addresses while experimenting with a setup use these commands to get the banned IP out of the ban again:
$] fail2ban-client status $] fail2ban-client set <jail listed by the above command, e.g. sshd> unbanip <the banned IP address>
Sometimes the IP address remains in the IPtables. Find it using these commands:
$] iptables -L --line-numbers|less
look for your IP address and note the filter, e.g. INPUT, and the line number.
Remove it from IPtables using this command:
$] iptables -D <the chain to delete from, e.g. INPUT> <the line number found above>
If you also use denyhosts to keep intruders out of your box and the IP address is in /etc/hosts.deny edit all the files in /var/lib/denyhosts/* and remove the denied IP addresse as well as /etc/hosts.deny - but after you have stopped denyhosts using
$] systemmctl stop denyhosts.service.
Remember to restart after editing.