Re: NFS creates hidden port

From	Rob van der Putten <rob@sput.nl>
Newsgroups	linux.debian.user
Subject	Re: NFS creates hidden port
Date	2017-08-23 13:50 +0200
Message-ID	<uhCkx-8tl-1@gated-at.bofh.it> (permalink)
References	<uhj8d-49K-13@gated-at.bofh.it> <uhjUC-4K6-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi there

On 22/08/17 18:01, Thomas Schmitt wrote:

<Cut>

> Question is whether it can be unambiguously recognized in netstat output
> as long as it is visible.
> Further: Is it always only one hidden port ?

It's always a callback from a Stretch NFS server to a Jessie NFS client. 
It occurs when the client mounts. The port moves from established, to 
wait to hidden.

When the Jessie box mounts a dir exported by Stretch, the Stetch box 
does a callback. When the Stretch box mounts a dir exported by the 
Jessie box, the Jessie box doesn't callback.

As a temporary fix a disabled the callback by mounting with NFS version 
three (vers=3) on the Jessie box.

Regards,
Rob

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Thread

NFS creates hidden port Rob van der Putten <rob@sput.nl> - 2017-08-22 10:40 +0200
  Re: NFS creates hidden port tomas@tuxteam.de - 2017-08-22 11:00 +0200
  Re: NFS creates hidden port <tomas@tuxteam.de> - 2017-08-22 11:00 +0200
    Re: NFS creates hidden port "Thomas Schmitt" <scdbackup@gmx.net> - 2017-08-22 11:20 +0200
      Re: NFS creates hidden port <tomas@tuxteam.de> - 2017-08-22 11:50 +0200
        Re: NFS creates hidden port Rob van der Putten <rob@sput.nl> - 2017-08-22 12:10 +0200
          Re: NFS creates hidden port <tomas@tuxteam.de> - 2017-08-22 12:30 +0200
          Re: NFS creates hidden port "Thomas Schmitt" <scdbackup@gmx.net> - 2017-08-22 12:40 +0200
            Re: NFS creates hidden port Rob van der Putten <rob@sput.nl> - 2017-08-22 13:50 +0200
              Re: NFS creates hidden port "Thomas Schmitt" <scdbackup@gmx.net> - 2017-08-22 15:30 +0200
                Re: NFS creates hidden port Rob van der Putten <rob@sput.nl> - 2017-08-22 17:20 +0200
                Re: NFS creates hidden port "Thomas Schmitt" <scdbackup@gmx.net> - 2017-08-22 18:10 +0200
                Re: NFS creates hidden port Rob van der Putten <rob@sput.nl> - 2017-08-23 13:50 +0200

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