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Thread: Ports blocked?

  1. #1
    Join Date
    Jun 2003
    Location
    Somerset, UK
    Posts
    162

    Ports blocked?

    When I reset one of our servers the ports for cpanel, whm and ssh no longer work. It just hangs.

    The server itself comes back up and works etc etc, but its as if the ports get blocked.

    I have checked APF and all ports are included in the configuration.

    The only way to get passed this (although I don't know how) is to reset the server and then just as its finished rebooting login into SSH, I initially get a connection refused then I log in again and I access SSH.

    Once I am in and the server has rebooted, cPanel, whm and ssh work. But I merely logged in to ssh.

    Could anyone shed any light on this?
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  2. #2
    Join Date
    Mar 2004
    Location
    New Jersey
    Posts
    793
    Wild guess: is the reset set to 1 in /etc/conf.apf? Sounds like APF is loading rules then flushing them after a minute perhaps?

  3. #3
    Join Date
    Sep 2005
    Location
    In canada
    Posts
    3,213
    Ensure that u have not blocked the important ports some ports which need to remain open generally are :
    Listening TCP ports: 1,20,21,22,25,53,80,110,111,143,443,465,873,993,995,2082,2083,2084,2086,2087,2095,2096,3306,8009,8080

    Listening UDP ports: 53,873

    Hope u have them open

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