ISPConfig3 installation error

Discussion in 'Installation/Configuration' started by ShadowMerlin, Sep 15, 2025.

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  1. ShadowMerlin

    ShadowMerlin New Member

    I'm a somewhat knowledgeable user. My old server died and I'm setting up a new one using Ubuntu 24.04.
    I'm installing ISPConfig3, and got the following error message:
    [INFO] Disabling conflicting apache modules.
    [INFO] Enabling apache modules.
    [ERROR] Exception occurred: ISPConfigOSException -> Command a2enmod suexec rewrite ssl actions include dav_fs dav auth_digest cgi headers proxy_fcgi proxy_http alias http2 mpm_event 2>&1 failed. (/ispconfig.ai.php:15)

    Now I'm lost. Where do I go from here?
     
    ShadowMerlin, Sep 15, 2025
    #1
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    Run the command that failed to see why it fails:

    Code:
    a2enmod suexec rewrite ssl actions include dav_fs dav auth_digest cgi headers proxy_fcgi proxy_http alias http2 mpm_event
     
    till, Sep 15, 2025
    #2
  3. ShadowMerlin

    ShadowMerlin New Member

    Thank you. That got me SOMEWHERE, but I don't know what to do about it. It says:
    ERROR: Module mpm_prefork is enabled - cannot proceed due to conflicts. It needs to be disabled first!
    How do I disable that?
     
    ShadowMerlin, Sep 15, 2025
    #3
  4. till

    till Super Moderator Staff Member ISPConfig Developer

    Just a guess, you probably did not start with an empty server. It seems that your server already has Apache with the wrong MPM installed. It is important to start the installation from a completely empty server with just SSH installed.

    To fix your problem, run:

    sudo a2dismod mpm_prefork

    And try the command again. If it works now, restart the auto installer.
     
    till, Sep 15, 2025
    #4
  5. ShadowMerlin

    ShadowMerlin New Member

    Ahh. Last time I did this was quite a few years ago (on Ubuntu 18.04) and I followed step-by-step in "The Perfect Server". It had me install everything first and then the last thing to go in was ISPConfig.
    Do I now install ISPConfig first, and then Apache, Postfix, PureFTP, etc., or does the ISP installation include that?

    EDIT: Never mind. I found it. Thanks for the assistance! (I'm not as completely helpless as I thought.)
     
    Last edited: Sep 16, 2025
    ShadowMerlin, Sep 15, 2025
    #5
  6. till

    till Super Moderator Staff Member ISPConfig Developer

    till, Sep 16, 2025
    #6
  7. ShadowMerlin

    ShadowMerlin New Member

    Thank you for all your assistance. I now have it up and running. I just have to tweak a few things now, but it's up and running as it should. Doing it this way is not only MUCH easier, but also much quicker!!!
     
    ShadowMerlin, Sep 16, 2025
    #7

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