Le 23/09/2007 à 00:27:15-0700, Martin Alejandro Paredes Sanchez a écrit
> El Vie 21 Sep 2007, Albert Shih escribió:
> >  Le 21/09/2007 à 13:59:35-0500, Dan Nelson a écrit
> > > In the last episode (Sep 21), Le Cocq Michel said:
> > > > Albert Shih a écrit :
> > > > > How can I known at un precise moment who charge my NFS server (I'm
> > > > > root in both side : client and server).
> > > > 
> > > > With some info student it also happen some times in here, and the way i 
> > > > find is to launch a tcpdum or ethereal on the server and look at which
> > > > ip appear the more often
> > > 
> > > I think ethereal/wireshark is your best bet too.  At least with it you 
> > > can filter on the userid making an NFS request (it's rpc.auth.uid).
> > > Unfortunately it doesn't look like there's a summary or analysis option
> > > for NFS, so you'll have to count packets maually...
> > 
> > But my problem is the NFS traffic is heavy in standard time, and wireshark 
> > or tcpdump give my lot of lot of data.
> >

Thanks 
> 
> Use the force luke
> 
I like this ;-) 

> You only need 100 packets (you may decide to increase) that are directed to 
> your server, to the NFS daemon.
> 
> tcpdump -c 100 -nq dst port nfs and dst host $HOST
> 
> You don't need to interpret this info, you need to know who is originating 
> the 
> traffic, lets extract the ip that are originating the traffic
> 
> nawk 'BEGIN {FS="[ .]"; OFS="."} {print $4,$5,$6,$7}'
> 
> But, who generate more traffic?
> Lets count how many packets are originating each one of those ip
> 
> nawk '{packets[$1]++} END{for (ip in packets){print packets[ip], ip}}'
> 
> And order it
> 
> sort -rn
> 
> Use pipes to connect all the commands, if this situation is very common, 
> create a shell.

Thanks again.

> 
> HTH

I think so.


Regards.


--
Albert SHIH
Observatoire de Paris Meudon
SIO batiment 15
Heure local/Local time:
Lun 24 sep 2007 12:01:11 CEST
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