Adrian  writes:
> In total there are 8 Pis on the network, with OS versions varying from
> Wheezy to Buster.  All of them do a "push" rsync to the target
> machine, seven across the network, and the target from its SD to the
> HDD.  All work fine apart from this one machine.  The source machine
> does a "pull" rsync from the targets HDD to the source's SSD.  This
> also works OK.
>
> So the only thing in this that I can see is unique is the source
> machine.

Cable and switch port are presumably unique too, and easy to rule out.

--
https://www.greenend.org.uk/rjk/

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