I am trying to test what ports I have open. I was told that I could just open a Terminal session, and type in "telnet localhost 80" and it should respond with the port is working. Instead I get the following: telnet localhost 80 Trying ::1... telnet: connect to address ::1: Connection refused Trying fe80::1... telnet: connect to address fe80::1: Connection refused Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused telnet: Unable to connect to remote host I know that this cannot be true, otherwise I could not get to this page. How can it show that the port is not open, but yet I am getting through to all my web pages? This started by using transmission and it is reporting that the port is closed. I opened the port on my Router. I still am able to download and upload files via Transmission fine. I just want to be able to confirm the port it open. My ISP is Comcast, Business Class connection at 30 MBS. This is connected to a D-Link 655 Router. Not a Wireless connection. MacPro, Intel Dual Core 2.5, 5 gigs of Ram. 28'' Monitor.