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Attempted DDoS attack

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  • Attempted DDoS attack

    Hi everyone, I am running a 3.8.7 implementation at

    Last night a guy came on our voice chat server and threatened a DDoS attack. I ignored him but banned him from the voice chat server and recorded his IP address. Around that same time, I began receiving emails from vbulletin as follows:

    Database error in vBulletin :

    mysqli_real_connect() [<a href='function.mysqli-real-connect'>function.mysqli-real-connect</a>]: (HY000/2003): Can't connect to MySQL server on '' (110)
    /home/ajguerr/ on line 1138

    MySQL Error :
    Error Number :
    Request Date : Wednesday, May 4th 2011 @ 09:39:47 PM
    Error Date : Wednesday, May 4th 2011 @ 09:40:08 PM
    Script :
    Referrer :
    IP Address :
    Username :
    Classname : vB_Database_MySQLi
    MySQL Version :

    Does anyone know what he is trying to do, and how I can seal it off? His IP address is there in the message--it's the same as the one he used to connect to the voice chat server. I have already attempted to contact the abuse dept at his ISP but no reply.

  • #2
    Your mysql server going down is a possible sign of an attack, but does not mean it is.

    contact your webhost, mysql is down.


    • #3
      MySQL is not/was not down. Doesn't the fact that the same person's IP address is in the error message mean that he's doing something?


      • #4
        Can't connect to MySQL server on '' Means that mysql is down or unreachable. Is the site working fine?


        • #5
          Yes, the site is working fine. I received these messages directly after this guy threatened us with an attack, so I'd say it's pretty plain they are related.


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