Hello,

my first attempt with BackupPC was to try to backup windows clients via 
rsync over ssh (cygwin) but transfer rates were very slow, so I switched 
  to rsyncd.

All clients on the LAN and some laptops connected via VPN are now using 
rsyncd. Since these clients are all running windows xp/2k I could also 
use Samba for the transport.

Reading about authentication in the rsyncd man page:

[...] The authentication protocol used in rsync is a 128 bit MD4 based 
challenge response system. This is fairly weak protection, though (with 
at least one brute-force hash-finding algorithm publicly available).
Also note that the rsync daemon protocol does not currently provide any 
encryption of the data that is transferred over the connection. Only 
authentication is provided. Use ssh as the transport if you want 
encryption. [...]

Questions
=========
1) Regarding security: How does samba compares to rsyncd?

2) If I choose a password that is long and complicates enough, I should 
be safe regarding brut-force attacks? Transfer via rsyncd will still be 
unencrypted :-/

3) If I tunnel rsyncd over SSH, will I get the low transfer rates like 
rsync+ssh on windows clients?

4) Is someone using rsync over SSH (Cygwin based) and get the same 
transfer speeds like rsyncd? Or will encryption always come with the 
cost of (much) lower transfer speeds?

- Kurt

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