This isn't a bug in ufw, but rather something that needs to be tuned for your system. You might be interested in reading: http://security.stackexchange.com/questions/43205/nf-conntrack-table-full-dropping-packet
It could be argued that ufw should have cleared the table when disabled, but this would likely result in more problems for people who disable ufw and not seeing this problem. ** Changed in: ufw (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1377651 Title: ufw breaks sendto, even when disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ufw/+bug/1377651/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs