On Monday 04 July 2005 09:25, John Sasso wrote: > avail. Is this a bug? Not likely. > iptables --policy OUTPUT DROP Don't do this. How do you think it will help? Do you have untrusted local shell users? If so, you are doomed anyway. They will find an opening, get root, and get out as they wish. If it's just you on the machine, OUTPUT filtering is silly. Use self-control, not netfilter. iptables -P OUTPUT ACCEPT For the return packets, go stateful. An example is posted in the thread earlier today, Subject: help me. It's also given and explained in the Packet Filtering HOWTO. -- mail to this address is discarded unless "/dev/rob0" or "not-spam" is in Subject: header