Greetings. I am setting up a server that will be public IP facing and would like to ensure that the only ports accessible to the public are: ssh, http, and smtp. I have the following rules set for the ACCEPTS: ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:smtp ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:http ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh but a nmap scan of the server shows that port 25 is closed: 22/tcp open ssh 25/tcp closed smtp 80/tcp open http Any assistance would be greatly appreciated. Thanks. - Todd
