hi guys , I want to ask you , about the Iptables configurations ... When I run nmap ,it says me that I have an specific port open ... When I do a web test of open port at http://scan.sygatetech.com/prequickscan.html Its says me another ports open or closed .... when I run netstat it says me another completely different thing ... I dont know what to trust ... for example I want to close the udp port 111 and icmp 8 . Can I do this for example in the terminal : ./iptables -A INPUT -p udp --dport 111 -j DROP and the port will automatically be closed ? or should I restart the machine ? thanks in advance , richard karcher Ricardo german Kärcher gerkarcher@xxxxxxxxxxxx german@xxxxxxxxxxxxx rgkx@xxxxxxxxxxxxxx ___________________________________________________________ 1GB gratis, Antivirus y Antispam Correo Yahoo!, el mejor correo web del mundo http://correo.yahoo.com.ar