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cp/wp plugin: wp dbmanager - NOTES                              rev 26 aug 2021

Category: backup
cp/wp: classicpress and wordpress 
webwalker: essential

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description: 

  Nice simple database backup plugin; my fav for many years now.
  saves zip backups on server, and sends in email.
  No 'cloud' bs.

  Version recommendation: FREEZE at n.n | UPDATE OK

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sources: 

  Plugin page:
    https://wordpress.org/plugins/wp-dbmanager

  WordPress forums:
    https://wordpress.org/support/plugin/wp-dbmanager
    https://wordpress.org/search/classicpress+wp-dbmanager/?forums=1
  ClassicPress forums:
    https://forums.classicpress.net/search?q=%22wp%20dbmanager%22

  Docs and code:
    https://pluginwebsite.tld/

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➽ Install/config/uninstall:

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install:

  the usual.


......................... 
settings:

    has its own sidebar menu


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uninstall:

  - deletes from database?
    "only deletes the options it creates"
    https://wordpress.org/support/topic/remove-plugin-completely/#post-12881873

  - makes wordpress cron jobs:
     dbmanager_cron_repair
     dbmanager_cron_backup
     dbmanager_cron_optimize
     should clean those up on uninstall:
       https://wordpress.org/support/topic/remove-plugin-completely/#post-12881873
       [26 may 2020]

  tables: 
    makes no tables:
      https://wordpress.org/support/topic/remove-plugin-completely/#post-12881873
      [26 may 2020]


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➽ notes:

......................... 
sending backup in email:

  If [sending backup in email] fails, that means the backup file 
  might be too big to send via email.
  -- Lester Chan 



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more info:

  Needs passthru(), system() and/or exec()
  Can't really find much about this 
    - does it need all of them, or just one?

     - https://wordpress.org/support/topic/passthru-system-exec-is-disabled/
     - https://wordpress.org/support/topic/plugin-wp-dbmanager-passthru-and-security/

     Jeff found good info at
       https://blog.reverbstudios.ie/2014/07/10/fix-passthru-system-exec-errors-wordpress-database-manager/
       fixes by adding to php.ini
		Checked this page again [7 oct 2021]
		The code looks wonky. nothing there to add to php.ini.
		Didn't try it. [7 oct 2021]

  passthru() (and i imagine system() and exec() also) is supposed 
  to be a security problem -- however every other host i've been on has
  apparently been enabling it since this is the first time i've run
  into this error.

  Other backup plugins also use these functions.


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other plugins of same type:

  there are several, but they do too much.

	https://wordpress.org/plugins/wp-dbmanager/#what%20is%20the%20difference%20between%20wp-dbmanager%20and%20wp-db-backup%3F
 * What is the difference between WP-DBManager and WP-DB-Backup?
    - WP-DB-Backup 
        - uses PHP instead of mysqldump; requires less permissions.
        - to restore is a premium addition. 
        - doesn't save on server if emailed.
		- little support from owner. it's not even listed on their website.
    - WP-DBManager 
		- uses mysqldump application to generate the backup
			and mysql application to restore them via shell.
        - also does scheduled optimisation and repair.
        - saves on server as well as emails.


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begin 30 sep 2019
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