Limit for smtp connection

From: Paulo Fragoso (paulo_at_nlink.com.br)
Date: 06/14/03

  • Next message: Clement Laforet: "Re: Limit for smtp connection" 
    Date: Sat, 14 Jun 2003 10:13:08 -0300
To: freebsd-isp@freebsd.org

    Hi,

    How can we limit the number of simultaneously accepted
    connections from the same IP address to our smtp server?

    We are using qmail+daemontools+spamcontrol+qmailscanner+spamd, but
    sometimes there are floods from same IP to our server (smtp port),
    reaching connetions limit configured on tcpserver startup (tcpserver -c
    #). We can't increase this limit because it can kill other process by
    out swap (DoS).

    We have found some SMTP server on the internet which accept no more than
    5 simultaneusly connection from our SMTP server. How to implement this
    using qmail+tcpserver?

    Paulo.

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  • Next message: Clement Laforet: "Re: Limit for smtp connection"

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