[K12OSN] RSYNC Question

[Jim Kronebusch]

I have seen some stuff referring to rsync with backing up servers.  Can
anyone tell me how this works?  Can I use this to make an exact copy of
my running production server to a backup server of either equal or
lesser hardware.  Idea being that upon hardware failure of the
production server I would have an up to date backup (or possibly only
24hrs behind) to swap in and run as a temporary production server until
the main hardware was repaired.  Let me know if this is feasible (maybe
I need identical hardware) and if so where to start (what commands to
issue).  Ideally I would like to have the two machines running a
scheduled periodic backup that was automatic and did not require any
manual intervention.
 
Thanks

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