https://nileshgr.com/2013/04/18/securing-freebsd-server-with-fail2ban-and-ipfw → bsd-ipfw で同じことができる。https://forums.freebsd.org/threads/52107/ cat /usr/local/etc/fail2ban/jail.d/sshd-ipfw.conf [sshd-ipfw] enabled = true filter = b…

freebsd ssh filterの確認 fail2ban-regex /var/log/auth.log /usr/local/etc/fail2ban/filter.d/bsd-sshd.conf Nov 13 12:42:18 xxx sshd[29619]: Invalid user ubuntu from 118.179.136.xxx port 39082 port がつく(11.2-RELEASE-p4 )ので ^%(__prefix_lin…