postfix-users

Re: connect from unknown[unknown]

Subject: Re: connect from unknown[unknown]
From: Noel Jones <njones AT megan.vbhcs DOT org>
To: postfix-users AT postfix DOT org
Date: Fri, 10 Aug 2007 10:04:06 -0500
At 06:39 AM 8/10/2007, Justin Piszcz wrote:
This has been discussed on the mailing list before; however, I never found a good conclusion or way to make this ALWAYS report an IP, each time a client connects, is there a way to make sure I always get an IP and never unknown in the logs? Otherwise I would need to run other software/packet sniffing to find out what IP's are connecting?

I'm pretty sure this can only happen when the client disconnects before completing the TCP handshake, which prevents the kernel from reporting the IP to postfix. There is nothing postfix can do about this since the problem is outside of postfix.

--
Noel Jones

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