Dis­as­ter re­cov­ery

A strat­egy for re­cov­er­ing from a breach that re­sults in data loss should be part of your se­cu­rity plan.

APC Australia - - How To » Linux -

There are sev­eral backup util­i­ties avail­able for the Linux desk­top user and your distri­bu­tion will have one in­stalled by de­fault. Ubuntu, for ex­am­ple, ships with Déja Dup that you can also in­stall on other dis­tri­bu­tions such as Fe­dora, OpenSUSE and Linux Mint.

Al­most ev­ery backup ap­pli­ca­tion will ask you to point it to the lo­ca­tion where you want to house your back­ups. Depend­ing on the tool you’re us­ing, this can be a lo­cal hard disk, a re­mote lo­ca­tion ac­ces­si­ble via SSH or FTP, or a web-based stor­age ser­vice, such as Ama­zon S3. You’ll also have to mark files and direc­to­ries that you want to in­clude in the backup. Some tools will also help you set up a backup sched­ule to au­to­mate the process. Tools such as Déja Dup will also en­able you to en­crypt your back­ups.

While Déja Dup and the like take the pain out of set­ting up the ac­tual data backup process, a cru­cial part of the process is pre­par­ing for it. For starters, you need to de­cide on a lo­ca­tion for stor­ing the backed-up data. If you have mul­ti­ple disks and a spare com­puter you can even set up your own net­work at­tached stor­age (aka a NAS) de­vice us­ing soft­ware like OpenMe­di­aVault.

The kind of data you wish to back up also in­flu­ences the choice of stor­age medium. You’ll also need to work out the ap­pro­pri­ate backup method­ol­ogy. Do you want to back up man­u­ally, or au­to­mat­i­cally based on a sched­ule? The cor­rect backup fre­quency varies based on the kind and value of data be­ing safe­guarded. Depend­ing on the size of the files, it might not be a good idea to back them up com­pletely ev­ery day, ei­ther.

Déjà Dup is based on Du­plic­ity and pro­vides just the right num­ber of fea­tures for desk­top users who aren’t used to the ways of a back-up tool.

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