[ILUG] Networking question

luker_luker linux.ul.ie at gmail.com
Tue Mar 29 12:09:46 IST 2011


Hi Kevin
first you need make sure that's network problem.
 Try dowload  24 M file to test if that's slow.
 if that's ok.  you need check nfs configuration.

On Tue, Mar 29, 2011 at 10:26 AM, Esdras Neto <esdras at gmail.com> wrote:

> Hi Kevin,
>
> Are you forcing full-duplex in all machines?
>
> Other thing could be the disk usage at that time, install the package
> sysstat in order to monitor the disks on the server using iostat.
>
> Just my 2 cents :)
>
> Regards,
>
> Esdras
>
> 2011/3/29 kevin <lists at cybercolloids.net>
>
> > I have a small network in an office. A Debian server supplying /home
> > directories to a small group of Ubuntu clients using NFS4. Typically
> > there will be about 1/2 dozen people using the network, authentication
> > is via NIS and the server also acts as a gateway to the wider world.
> > Networking is 100Mb ethernet distributed around the office by a couple
> > of switches.
> >
> > This all works fine and is generally quite responsive but occasionally
> > it seems to go into super-slow mode. For example: yesterday someone
> > tried to open a large (24mb) pdf on the network and it took several
> > minutes to open.
> >
> > I have checked routing tables, DNS and mounting NFS shares async.
> >
> > Any thoughts on why this might occasionally happen - seems a bit random.
> >
> > Kevin.
> >
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