Ubuntu
fail2ban package

  1. Bug #1556644
  2. Comment #1

Comment 1 for bug 1556644

Revision history for this message
Brady Shea (bmatthewshea) wrote :

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.