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Explaination of some words
B
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backup = save current data "somewhare".
Store your backup outside the local system to have a copy you can access if the system is damaged.
C
- cronjob = start a command in a defined cycle. ie. every hour, every day, once a week and so on
D
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database dump = backup a database / scheme into a single file
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Duplicity = Commandline backup tool; set of scripts written in Python; https://duplicity.gitlab.io/duplicity-web/
F
- full backup = backup of all data of the local system.
H
- hook = entry points during the backup process where you can execute custom scripts.
I
- incremental backup = backup of data that have changed since the last backup.
P
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prune = delete old backup sets and thin data in the backup repository.
As an example: You can make an hourly backup and define to keep all of them for a week, daily backups for 90 days and monthly backups starting from 1 to 36 monthes (=3 years). The prune actions removes data in the backup storage to thin out your backup data.
R
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Restic = Commandline backup tool; a single binary is compiled with Go; https://restic.net/
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restore = copy data back from a made backup to the local system.
T
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ttl = time to live
Definition how long an information is valid before it needs to be updated again.
V
- verify = check the integrity of backup data