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Date: | Mon, 28 Nov 2005 12:48:35 -0500 |
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Hello John, all,
It sounds like some one has installed a system/network monitoring
application that uses FTP to determine system availability.
It is likely that this tool is initiating a FTP/TCP connection sending a
SYN, then receives a SYN/ACK and then replies with a RESET.
The INETD job is successfully forking off a FTPSRVR as per the $stdlist
messages "Received call for: ftp tcp" and "inetd: fork succeeded" but the
connection is terminated before FTP can complete an open.
The console message "9:42/#J494/89/FTP CLOSE" should of been followed by an
IP address, it seems that we found a corner case here where it is not able
to achieve that information.
As a workaround, the console messages can be turned off in SETPARMS.ARPA.SYS
as documented in FTPDOC.ARPA.SYS.
If you can contact the HP-RC, I would be interested in seeing a TCP trace of
this .
The warranty and liability expired as you read this message.
If the above breaks your system, it's yours and you keep both pieces.
Regards,
James Hofmeister
Email: <first>.<last>@hp.com
Hewlett Packard - Global Solutions Engineering (WTEC)
P.S. My Ideals are my own, not necessarily my employers.
> Yesterday we started getting thousands of the
> following in the STDLIST for JINETD:
>
> 5074 Received call for: ftp tcp
> 5075 inetd: fork succeeded
> 5078 Received call for: ftp tcp
> 5079 inetd: fork succeeded
> 5082 Received call for: ftp tcp
> 5083 inetd: fork succeeded
> 5086 Received call for: ftp tcp
> 5087 inetd: fork succeeded
> 5090 Received call for: ftp tcp
> 5091 inetd: fork succeeded
>
> and the following on the console from JINETD:
>
> 9:42/#J494/89/FTP CLOSE
>
> about every minute. This is happening on both our
> production system and our shadow and development
> system. Both on the same network. Anyone have any idea
> where these are coming from or what is generating
> them? FTPs are all working okay (at lease as far as we
> can tell) and we do not have the volume of FTPs to be
> generating this many messages. Any suggestions would
> be appreaciated.
> John Bawden
> QualChoice
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