Questions about network ports

Discussion in 'macOS' started by frozencarbonite, Oct 30, 2006.

  1. frozencarbonite macrumors 6502


    Aug 3, 2006
    Here is my story:

    I have Intego Netbarrier installed. Last night I was surfing around in Firefox. I don't know if any of you know how Netbarrier works, but it lets you allow or block an outgoing connection from a specific program.

    I opened Netbarrier up and looked at my Firefox settings. And it had a list for port 7000 and port 8444. If I remember correctly, port 7000 was blocked and 8444 was allowing outgoing connections through Firefox. I know the legitmate use of port 7000 is afs3-fileserver. And the legitimate use for port 8444 is PCSync. I have no idea why these popped up in my rules for outgoing connections through Firefox. I'm not using a file server or PCSync.

    The thing that scared me, was that I don't remember ever being asked to set those rules for Netbarrier. And I'm wondering if something could be trying to use these ports for malicious activity.

    I was wondering how do I find out what, if anything is using port 7000 or port 8444? I've used the command:

    lsof -i

    in terminal, but I'm kinda confused on how to read it. I don't see anything listed that lists the ports being used. I'm a Terminal newbie. Any help would be greatly appreciated.
  2. jeremy.king macrumors 603


    Jul 23, 2002
    Fuquay Varina, NC
    if you want to see if anything is listening/connected try the following Terminal command

    netstat -a
  3. frozencarbonite thread starter macrumors 6502


    Aug 3, 2006
    I'm doing that right now :)

    I'm trying to figure out how to read the results.

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