pf not blocking fail2ban-ned IPs
Xavier Humbert <[email protected]> Sun, 10 May 2026 10:27:36 +0200
| Newsgroups | gmane.os.freebsd.devel.ports |
|---|---|
| Message-ID | <[email protected]> |
Hi, pf does not block IPs from the fail2ban table : [root@numenor ~]# pfctl -s rules block drop in all pass in proto tcp from any to any port = ssh flags S/SA keep state pass in proto tcp from any to any port = smtp flags S/SA keep state pass in proto tcp from any to any port = submission flags S/SA keep state pass in proto tcp from any to any port = smtps flags S/SA keep state pass in proto tcp from any to any port = imap flags S/SA keep state pass in proto tcp from any to any port = imaps flags S/SA keep state pass in proto tcp from any to any port = http flags S/SA keep state pass in proto tcp from any to any port = https flags S/SA keep state pass in proto tcp from any to any port = domain flags S/SA keep state pass in proto tcp from any to any port = 2222 flags S/SA keep state pass in proto udp from any to any port = domain keep state pass in proto udp from any to any port = ntp keep state pass out all flags S/SA keep state pass inet proto icmp all icmp-type echoreq keep state pass log quick proto tcp from any to any port = 2222 flags S/SA keep state pass log quick proto tcp from any to any port = http flags S/SA keep state block drop quick on igb0 inet6 proto tcp from <fail2ban> to fe80::d250:99ff:fec1:1279 port = 2222 block drop quick inet6 proto tcp from <fail2ban> to 2a01:xxxx:xxxx:xxxx::144 port = 2222 block drop quick inet proto tcp from <fail2ban> to 192.168.100.144 port = 2222 [root@numenor ~]# pfctl -t fail2ban -T show 188.127.181.142 But this IP continues to knock at my SSH port : May 10 10:16:51 numenor sshd-session[14184]: Connection from 188.127.181.142 port 26447 on 192.168.100.144 port 2222 May 10 10:16:51 numenor sshd-session[14184]: Invalid user testenv from 188.127.181.142 port 26447 May 10 10:16:51 numenor sshd-session[14184]: Connection reset by invalid user testenv 188.127.181.142 port 26447 [preauth] Did I miss something ? Regards, Xavier -- Xavier HUMBERT - Unix/Win/MacOSX Sysadmin/Network Engineer https://www.amdh.fr