Hi... Kernel: 2.6.20-rc5 Iptables: v1.3.7-20070118 The owner-Match seems not to match TCP-Packets any more. Can be tested by inserting the rule: iptables -I OUTPUT -m owner --uid-owner test-user -j LOG Simply su to the specified user and using netcat (nc) to send UDP and TCP packets shows only log entried with PROTO=UDP but none with TCP. Anyone can reproduce this and pearhaps got a solution?? Greets Sebastian.