Free PBX back up

Hello,
Someone here please tell how to proceed with a back up in free pbx GUI for the current config file then the processes to send the config file into the system if something wrong happen,
I made a lot of work in the system and i am starting to worry about to lose my hard work.

Look forward to your reply !

Thanks !

http://wiki.freepbx.org/display/FPG/Using+the+Backup+module

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Thank you !