Ben Hartshorne said on Mon, Jan 09, 2006 at 08:23:00PM -0800:
> I want to use si_updateclient through an ssh tunnel.  I find it improves
> reliability in addition to providing security.  
 
How does it improve reliability?  Running rsync over ssh certainly slows
you down a lot; in addition to the encryption overhead, ssh screws with
the TCP window algorithm[1] which slows you down if you're on fast net.

> The Golden server (golden) is running rsync but the port is firewalled
> off - you may only connect to it from localhost.  The whole ssh thing is
> supposed to create a tunnel from the client to the server and port
> forward some random local port to the rsync server on golden.  
 
Really?  I'd expect it to just use the RSYNC_RSH=ssh variable, and not
require port forwarding or an rsyncd running at all.

> Here's my real question - does nobody use ssh support for
> si_updateimage?  It's been broken for a *long* time now, and I don't see
> any complaints about it out there on the net.  What gives?  Is everyone
> happy running their rsync cleartext over their network?  Presumably,
> you're running this thing in a protected network, so it's ok to not use
> ssh.  

I use cleartext rsync.  Using rsync over ssh has remained firmly in the
class of "nice to have but not required"; I'm not sure how much it
actually gains you in reality.

M

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