On Thu, Mar 27, 2003 at 02:28:37PM -0500, Gary Huntress wrote:
> I have noticed on many occasions some extensive traffic on my internal
> network that I cannot explain.   Below you will see two sets of tcpdump
> traces.   I have a mysql server running on my internal host named
> "herzegbol" and a windows 98 host named shelbyville

[snip]

> This trace is after I issue mysqladmin shutdown:
> 14:32:09.886091 eth1 > herzegbol.mysql > shelbyville.2333: R 0:0(0) ack
> 2360059956 win 0 (DF)
> 14:32:15.626067 eth1 > herzegbol.mysql > shelbyville.2334: R 0:0(0) ack
> 2356113189 win 0 (DF)
> 14:32:17.586063 eth1 > herzegbol.mysql > shelbyville.2308: R 0:0(0) ack
> 1867829359 win 0 (DF)
> 14:32:20.696068 eth1 > herzegbol.mysql > shelbyville.2321: R 0:0(0) ack
> 2130321013 win 0 (DF)
> 14:32:25.566094 eth1 > herzegbol.mysql > shelbyville.2324: R 0:0(0) ack
> 2251852705 win 0 (DF)
> 14:32:30.066104 eth1 > herzegbol.mysql > shelbyville.2325: R 0:0(0) ack
> 2264947201 win 0 (DF)
> 
> The reason this is confusing to me is that the traffic originates on
> the mysql server "herzegbol" via the mysql port and the destination
> is the windows box on dozens of ports and there is no program or
> process on the windows machine that is connected to the database
> server.  As far as I can tell there is absolutely no reason for
> Herzegbol to talk to shelbyville, yet this traffic will pop up
> almost every day for a period of time and swamp my network.  I would
> like to identify the source and understand the cause.

That's really odd.  Are you *sure* it actually shuts down?

Jeremy
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Jeremy D. Zawodny     |  Perl, Web, MySQL, Linux Magazine, Yahoo!
<[EMAIL PROTECTED]>  |  http://jeremy.zawodny.com/

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