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exim maxing out after V 11 upgrade

Discussion in 'General Discussion' started by superiorhost, Aug 28, 2007.

  1. superiorhost

    superiorhost Well-Known Member

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    Hello,
    Are there others that are having a problem with exim getting slammed with the max allowed connections after updating to cpanel 11 ???

    I have upgraded perl to 5.8.8 and upgraded cpanel. Now, all day yesterday, last night, and now.. pstree is showing exim maxed out.

    Clients are complaining that they can't send email due to the "too many connections" error.

    I have bumped up the max to 300 for now to hopefully get more clients able to send, but it is quickly working its way over 200 as I type this.

    I have tried every setting in the exim configuration editor, on and off, I have a data center techs working on it since yesterday...

    Anyone know what I need to do to fix this?

    Thank you,
    Tim L
     
  2. carock

    carock Well-Known Member

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    I found what appeared to be a DoS attack on one of my servers causing the "too many connections" error.

    netstat -an | grep :25 showed a lot of connectionf from the same IP. I grepped the exim_mainlog and found this.

    2007-08-28 13:51:05 SMTP connection from (175-229-190-89.baltnet.ru) [89.190.229.175] closed after SIGTERM
    2007-08-28 13:51:05 SMTP connection from (175-229-190-89.baltnet.ru) [89.190.229.175] closed after SIGTERM
    2007-08-28 13:51:05 SMTP connection from (175-229-190-89.baltnet.ru) [89.190.229.175] closed after SIGTERM
    2007-08-28 13:51:05 SMTP connection from (175-229-190-89.baltnet.ru) [89.190.229.175] closed after SIGTERM
    2007-08-28 13:51:05 SMTP connection from (175-229-190-89.baltnet.ru) [89.190.229.175] closed after SIGTERM

    2007-08-28 13:50:49 unexpected disconnection while reading SMTP command from (175-229-190-89.baltnet.ru) [89.190.229.175] (error: Connection reset by peer)
    2007-08-28 13:50:51 unexpected disconnection while reading SMTP command from (175-229-190-89.baltnet.ru) [89.190.229.175] (error: Connection reset by peer)
    2007-08-28 13:50:52 unexpected disconnection while reading SMTP command from (175-229-190-89.baltnet.ru) [89.190.229.175] (error: Connection reset by peer)
    2007-08-28 13:50:52 unexpected disconnection while reading SMTP command from (175-229-190-89.baltnet.ru) [89.190.229.175] (error: Connection reset by peer)


    I firewalled them asap.
     
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