Hi everyone - this is my first post to this list - so if anything is wrong with my way of posting please tell. And here is the question. How is it possible to nat a lokal port? IPTABLES -t nat -A PREROUTING -p tcp -d 127.0.0.1 --destination-port 81 -j DNAT --to-destination 127.0.0.1:80 telnet localhost 80 <<< works telnet localhost 81 <<< Connection refused Henry