[Nagiosplug-devel] Recent patch to check_smtp.c

[Bertelson, Tom (CAP, CARD)]

The SMTP protocol says (RFC 821):

      4.1.1.  COMMAND SEMANTICS

         The SMTP commands define the mail transfer or the mail system
         function requested by the user.  SMTP commands are character
         strings terminated by <CRLF>.  The command codes themselves are
         alphabetic characters terminated by <SP> if parameters follow
         and <CRLF> otherwise.  The syntax of mailboxes must conform to
         receiver site conventions.  The SMTP commands are discussed
         below.  The SMTP replies are discussed in the Section 4.2.

I've never encountered a system that cannot handle \r\n.
-- 
Tom Bertelson                "Any sufficient advanced technlogy
GE Card Services              is indistinguishable from magic."
Tom.Bertelson at gecapital.com      -- Arthur C. Clarke

-----Original Message-----
From: Subhendu Ghosh [mailto:sghosh at sghosh.org]
Sent: Thursday, June 13, 2002 3:56 PM
To: nagiosplug-devel at lists.sourceforge.net
Subject: Re: [Nagiosplug-devel] Recent patch to check_smtp.c


I guess one could add a regex to see if the initial 220 response matches 
some thing unique to Exchange..

Could you post a 220 response from an Exchange server - I am happily 
ignorant on that issue :)

Also if this is causing you problems right now - just change the 
SMTP_USE_DUMMYCMD to 0..

-sg


On Thu, 13 Jun 2002, Benjamin Madsen wrote:

> Running the recent patch against a Microsoft 2000 Server w/ Exchange SMTP 
> agent caused problems with the SMTP_DUMMYCMD check.  Apparently,
Exchange's 
> SMTP agent looks for a '\r\n' as opposed to just a '\n'.  Since I am 
> unfamiliar with how to patch things, could somebody do that?
> 
> Also, I'm wondering what implications changing the SMTP_DUMMCMD to 
> "MAIL\r\n" would be... Any ideas?
> 
> Thanks,
> Ben Madsen
> IT Manager
> Wisp Communications
> http://www.wispcommunications.com
> 
> --- Original Message ---
> FROM: Karl Ewald
> DATE: 06/09/2002 12:12:36
> SUBJECT: [Nagiosplug-devel] patch for check_smtp.c
> Hi plugin developers,
> 
> sendmail will create a syslog entry when a session only issues a quit
> command, looking roughly like this:
> Jun  9 19:50:44 beaulieu.ixos.de sendmail[26790]: NOQUEUE: mucnm01.ixos.de
> [149.
> 235.38.10] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
> 
> This clobbers the syslog of every machine where SMTP is checked and can be
> prevented by issuing a command. Thze following patch does just that.
> It is a diff against the netsaint-plugins-1.2.9-4 plugins/check_smtp.c
file
> (which I checked in locally as 1.1).
> Apologies if this change was already made in the latest release of the
> plugins, I haven't checked.
> 
> Have fun,
> 
> Karl Ewald
> Network Administrator, IT Services
> IXOS Software AG http://www.ixos.com/
> 
> 
> 
> _______________________________________________________________
> 
> Don't miss the 2002 Sprint PCS Application Developer's Conference
> August 25-28 in Las Vegas -
http://devcon.sprintpcs.com/adp/index.cfm?source=osdntextlink
> 
> _______________________________________________
> Nagiosplug-devel mailing list
> Nagiosplug-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/nagiosplug-devel
> 


_______________________________________________________________

Don't miss the 2002 Sprint PCS Application Developer's Conference
August 25-28 in Las Vegas -
http://devcon.sprintpcs.com/adp/index.cfm?source=osdntextlink

_______________________________________________
Nagiosplug-devel mailing list
Nagiosplug-devel at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagiosplug-devel