I'm not sure if this is making things too complicated, but one of the problems with SSH is that bots start to hammer it from the moment it is turned on. I use rate limiting and have seen others mention it on the Ubuntu Forums. Maybe it can be part of the settings for SFTP/SSH.
e.g. ip6tables -I INPUT -p TCP --dport 22 -m state --state NEW -m limit --limit 4/minute --limit-burst 5 -j ACCEPT iptables -I INPUT -p TCP --dport 22 -m state --state NEW -m limit --limit 4/minute --limit-burst 5 -j ACCEPT -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/911383 Title: UFW missing pre-configured HTTPS option To manage notifications about this bug go to: https://bugs.launchpad.net/gui-ufw/+bug/911383/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs