> 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 iptables -t nat -A PREROUTING -d 127.0.0.1 -p tcp --dport 80 -j REDIRECT --to-ports 81 Rob