Seems to be iptables (?) $ sudo iptables -I INPUT -p all -m multiport --dports smtp,ssmtp,submission -j fail2ban-postfix
iptables v1.4.21: multiport needs `-p tcp', `-p udp', `-p udplite', `-p sctp' or `-p dccp' Try `iptables -h' or 'iptables --help' for more information. Note: it does not mention '-p all' ^. So, I assume this is what fail2ban stumbled on. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1556644 Title: Fail2Ban "Protocol = all" errors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fail2ban/+bug/1556644/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
