Rsync security

Chris Shoemaker c.shoemaker at
Wed Jun 16 17:04:35 GMT 2004

On Wed, Jun 16, 2004 at 02:37:25PM -0700, Wayne Davison wrote:
> On Wed, Jun 16, 2004 at 12:30:04PM -0400, Chris Shoemaker wrote:
> > Do any "rsync developers" care to confirm/deny?  [...] I've used rsync
> > over NFS with no problems.  
> It has been said many times before that using network-mounted disks is
> suboptimal because rsync is optimizing the data transfer, not the file
> reading -- i.e. if both ends of the transfer are running on the same
> machine, the socket/pipe data that rsync is optimizing is being sent
> locally and the disk-reading is happening via network reads, so rsync
> can't optimize the network use.  However, if you don't mind the

good point, but... rsync can still experience all the benefits of skipping
files that are identical, even the file reads, assuming you're
preserving modification times.  Thus, for me, rsyncing several TB
filesystems over NFS where src and dest are 99% identical still takes
only minutes.

> slowdown, it should work OK (as long as the network filesystem involved
> isn't buggy or have compatibility issues).
> ..wayne..

More information about the rsync mailing list