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On 07/06/2012 04:29 PM, Anne Wilson wrote:
> On 06/07/12 14:08, Mark Stodola wrote:
>> On 07/06/2012 04:06 AM, Anne Wilson wrote: Logwatch on my laptop 
>> tells me
> 
>> Listed by source hosts: Dropped 30 packets on interface eth0 From 
>> 192.168.0.40 - 30 packets to tcp(38575)
[snip]
>> If the connection is still active, you can use a combination of 
>> 'netstat -na' and/or 'lsof -nP -i4' to find the process owning the 
>> connection. If it isn't, it will be difficult to track down
>> without fancier logging/capturing tools.  You mentioned remote
>> mounts, but not what method (CIFS, NFS, etc).  If it is NFS,
>> pseudo-random ports are chosen for the client connections and may
>> be your culprit.
> 
> It is indeed NFS.  The logs show ~6 of these high-number allocated
> ports listening, so you could well be right.  Is there any way to
> confirm that?  I have several nfs mounts in fstab.  One for each mount
> probably explains it.
> 
> netstat -na | grep 38575 tells me that it is listening:
> 
> on the laptop:
> tcp        0      0 0.0.0.0:38575               0.0.0.0:*
>       LISTEN
> 
> but doesn't give me any clue as to what it hears :-)

try adding -p to netstat command line, it will show what pid/process is
using the port (root privileges may be required)

Gilberto


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