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  1. #1
    Join Date
    Sep 2005
    Location
    The English Lake District
    Posts
    96

    Mystery "core.nnnnnn" files

    I just noticed today that in the public html directory of one of my sites are two files of 3.3MB named "core.nnnnnnn" where nnnnnn is a number. I didn't create them. I presume that I can just delete them, but I am wondering how they got there. Has anyone else found such files on their server? Might they have been created by some process of cPanel?
    Julian Moss
    Tech-Pro.net

  2. #2
    Join Date
    Aug 2001
    Posts
    5,068
    These files are created when an application process crashes. The number indicates the PID the process was running under. Do you use some executables to be called via CGI from a browser?
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  3. #3
    Join Date
    Sep 2005
    Location
    The English Lake District
    Posts
    96
    No, I don't. I only use PHP, apart from one Perl script that is used for web-to-email forms. There are a couple of CGI binaries (cgiecho, cgimail) in the cgi-bin directory that are part of the standard setup. I don't knowingly use them, though.
    Julian Moss
    Tech-Pro.net

  4. #4
    Join Date
    Aug 2001
    Posts
    5,068
    Contacting the support will be your best bet. They should be able to track down which application is actually crashing here.
    Sitemeer.com - Is your site up?
    Multi-Location Service Availability Check ● yes, we do HTTPS & IDN!


  5. #5
    Join Date
    Sep 2005
    Location
    The English Lake District
    Posts
    96
    Using my web server logs I think I have tracked it down to a couple of clicks on links that use my PHP/MySQL click counter/redirection script, which returned an error code 500 for some reason. Why I don't know, as the links are perfectly valid, and work now. At least I know how the files got there, even if I don't know why.
    Julian Moss
    Tech-Pro.net

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