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Thread: Zimbra Security what ports MUST I have open?

  1. #1
    Join Date
    Apr 2009
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    Default Zimbra Security what ports MUST I have open?

    Hi All,

    I want to thank you for your responses on my trouble threads. Now..if I am only opening smtp port 25 on my firewall from outside..and there any other ports I need open on the linux server? Or can I close them all down but those two? .. (and 7071). Thanks guys.

    I am fairly new at linux so I am wondering CAN anyone still hack you with only 443 and 25 open? What are the vulnerabilities possible. Thank you.

  2. #2
    Join Date
    Dec 2006
    Minneapolis MN
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    Have a look at Firewall_Configuration

  3. #3
    Join Date
    May 2006
    Rep Power


    You only need 25 and 443 open to the outside world. 25 to recieve mail and 443 to get the webmail console.

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