Re: [rdiff-backup-users] Disaple SSH encryption in local networks?

[chuck odonnell]

On Wed, Oct 26, 2011 at 07:59:37AM -0700, Marty_MC wrote:
> Hello to everybody !
> 
> I am using rdiff-backup to backup a Synology server to a Linux
> server.  The backup is running well, however the transfer rate is
> very less.  Because of the less CPU power of the Synology server, I
> have a transfer rate of 15 mbit/s only.
> 
> I assume the reason for that is the 3des encryption of the SSH pipe.
> 
> How can I switch of the SSH encryption or at least switch to a
> faster blowfish encryption in order to speed up the data transfer?
> 
> The -c cipher_spec switch which is outlined in the SSH man page is
> not working as rdiff-backup command.

To adjust ssh I think you are looking for '--remote-schema'

--remote-schema 'ssh -c cipher_spec %s rdiff-backup --server'

If you are using any compression that can chew up some CPU. Also, a
cheap NIC will leave a lot to the CPU. In my experience SSH encryption
is not all that expensive.

Best.

Chuck