Backup em Servidores GNU/Linux por meio do RSYNC

Descrição:

rsync is a program that behaves in much the same way that rcp does, but has many more options and
uses the rsync remote-update protocol to greatly speed up file transfers when the destination file is
being updated.

The rsync remote-update protocol allows rsync to transfer just the differences between two sets of
files across the network connection, using an efficient checksum-search algorithm described in the
technical report that accompanies this package.

Some of the additional features of rsync are:

- support for copying links, devices, owners, groups, and permissions

- exclude and exclude-from options similar to GNU tar

- a CVS exclude mode for ignoring the same files that CVS would ignore

- can use any transparent remote shell, including ssh or rsh

- does not require super-user privileges

- pipelining of file transfers to minimize latency costs

- support for anonymous or authenticated rsync daemons (ideal for mirroring)

Fonte: RSYNC MAN

Segue exemplo de um Bash Script simples, podendo ser aplicado em Servers Fedora/Red Hat/Cent OS: