[Plugins-writers] Re: W2k Esmtp disconnects from NASL script.

From: Steven W Smith (swsmith@private)
Date: Sat Mar 11 2006 - 06:51:31 PST


plugins-writers-bounces@private wrote on 03/09/2006 11:00:06 AM:


> Message: 2
> Date: Wed, 08 Mar 2006 17:04:23 -0500
> From: "George A. Theall" <theall@private>
> Subject: Re: [Plugins-writers] W2k Esmtp disconnects from NASL script.
> To: plugins-writers@private
> Message-ID: <440F54E7.6000608@private>
> Content-Type: text/plain; charset=us-ascii
> 

> > I can telnet to the server and issue the "HELO" just fine.  I can also 

> > configure a client such as Evolution and it works perfectly.  When I 
> > inspect the server log, I see that the NASL script's connection was 
> > established followed by an immediate "QUIT" that I didn't send.  The
> > "recv" following "Reference 2" times out and no data are displayed.
> 
> Have you verified what's actually sent with a packet dump? Do you have a
> firewall in front of the Win 2K server that is filtering traffic to the
> SMTP port?

1) Yes ... 2) no.  Wouldn't that prevent a client connection from the 
likes of "Evolution"?

> 
> RFC 821 specifies that lines end with CR/LF. Assuming you're not leaving
> out the linefeed on purpose, perhaps the creators of your SMTP server
> didn't know about the old maxim about "be generous in what you accept".

OK, that's most likely the culprit.  Thanks.

Smith
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