I cannot reproduce this. $ sudo ufw allow 22 $ sudo ufw enable $ sudo iptables-save && echo SUCCESS ... SUCCESS
I can see in the output: $ sudo iptables-save|grep ufw-user-output :ufw-user-output - [0:0] -A ufw-before-output -j ufw-user-output There seems to be something on your system that is removing the chain. ** Information type changed from Private Security to Public -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1867647 Title: ufw neglects to define chain ufw-user-output To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ufw/+bug/1867647/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs