Re: what's wrong with rsync?

["Jeffrey L. Taylor" <jeff@austinblues.dyndns.org>]

Quoting will trillich <will@serensoft.com>:
> what's wrong with rsync?
> 
> i'm heartily exploring backup methodologies and from what i can
> tell,  rsync  sure looks like "the bomb".
> 
> any drawbacks? some good reason to NOT use it? something better?
> 
> i'll be backing up the usual stuff (/etc /home ... and
> /var/backups with pg_dump output in them...)
> 
> apparently it does a remote diff somehow and then sends only the
> parts that need changing? i can't imagine that it's possible to
> compare two 1mb text files for differences without at least
> sending one across the wires -- yet the manpage certainly has me
> thinking that's what they claim it does. hmm?
> 

Be sure and use it only behind a good firewall, in a trusted LAN.  The
whole r* (rsync, rsh, etc.) series is wildly insecure.