[lug] Commercial rsync service?

Siegfried Heintze siegfried at heintze.com
Fri Feb 3 09:08:50 MST 2006


Is rsync via davfs going to be effective for daily backup? Unless you are
using https I don't think it will be secure. What about non-ascii files such
as executable images and databases? Will these have to be uuencoded for
transmission across a WebDAV connection?

 Is rsync able to optimize when it knows it has a remote connection? Will it
be able to optimize if it is using davfs instead of a remote ssh connection?

Would a remote ssh connection be both considerably more secure and faster?


-----Original Message-----
From: lug-bounces at lug.boulder.co.us [mailto:lug-bounces at lug.boulder.co.us]
On Behalf Of David L. Anselmi
Sent: Thursday, February 02, 2006 11:15 PM
To: Boulder (Colorado) Linux Users Group -- General Mailing List
Subject: Re: [lug] Commercial rsync service?

Rob Nagler wrote:
> WebDAV is simply GET, PUT, DELETE, and PROPFIND (ls).

Doesn't it do some kind of versioning too?

> With davfs (Unix driver), you can mount a WebDAV "volume" just like
> NFS or loopback or a CD.  Once that happens, you can then do:
>     rsync -alCS --delete $HOME /mnt/some-dav-volume

As long as you understand that this works like cp (see rsync -W).  If 
you do this to a 10GB directory tree you'll get 10GB sent across the 
network.  (Maybe there's a check so that unchanged files won't be sent 
based on size/timestamps but changed files are sent entirely.)

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