Borg
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Borg backup
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FAQ
Remote: Using a pure-python msgpack! This will result in lower performance
On CentOS: try installing python34-msgpack?
Connection closed by remote host. Is borg working on the server?
maybe you're using '@borgserver' instead of 'user@borgserver' ?
Exception: FD exception occurred
Probably running borg on cygwin, could be ssh key issue. Try
BORG_RSH="ssh -vvv" borg ...
Also check your quotes