NFS 4 client callback port

Guillaume Rousse Guillaume.Rousse at inria.fr
Thu Jun 12 03:52:51 EDT 2008


J. Bruce Fields a écrit :
> Argh--my apologies.  I totally forgot about
> /proc/sys/fs/nfs/nfs_callback_tcpport.  I believe that should let you
> set the client's callback port to the port of your choosing.
Cool :)

This setting exist both on client and server side, and its default value 
is 0. I guess this means 'undefined', and I have to set it on server. 
Unfortunatly, most of our nfs4 servers are actually netapp filer, I 
don't think they support such setting.

And while on the topic, we do have lots of similar listening connections 
on our clients, even those without any network filtering from the server:
tcp        0      0 *:48826                     *:* 
     LISTEN      -
tcp        0      0 *:45338                     *:* 
     LISTEN      -
tcp        0      0 *:39482                     *:* 
     LISTEN      -

I guess they are related to delegation recalling, but is this normal 
they are so many of them (around 100) ? And the fact than no related 
process is displayed is quite frightening at first :) Would it be 
possible to display kernel process here, as in ps output (but maybe it 
is a netstat issue there) ?
-- 
Guillaume Rousse
Moyens Informatiques - INRIA Futurs
Tel: 01 69 35 69 62


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