Title: Change DB Prefix
Last modified: August 21, 2016

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# Change DB Prefix

 *  Resolved [braindream](https://wordpress.org/support/users/braindream/)
 * (@braindream)
 * [12 years, 8 months ago](https://wordpress.org/support/topic/change-db-prefix-1/)
 * Hello,
 * sorry, but there maybe another permission-issue, which I cannot resolve in the
   moment.
 * I tried to change the DB Prefix and while I receive the confirmation
 * “Starting DB prefix change operations…..
    Your WordPress system has a total of
   45 tables and your new DB prefix will be: …_wp”
 * there’s a warning
 * “Warning: copy(/www/htdocs/w00c71b7/apropos/wp-config.php.backup) [function.copy]:
   failed to open stream: Permission denied in /www/htdocs/…/…/wp-content/plugins/
   all-in-one-wp-security-and-firewall/classes/wp-security-utility-file.php on line
   49”
 * and the message “Failed to make a backup of the wp-config.php file. This operation
   will not go ahead.” and the Prefix still remains wp_.
    So, which file I have 
   to change permissions?
 * [http://wordpress.org/plugins/all-in-one-wp-security-and-firewall/](http://wordpress.org/plugins/all-in-one-wp-security-and-firewall/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Contributor [mbrsolution](https://wordpress.org/support/users/mbrsolution/)
 * (@mbrsolution)
 * [12 years, 8 months ago](https://wordpress.org/support/topic/change-db-prefix-1/#post-4240536)
 * Hi braindream, for your security please don’t publish full paths to your server
   and a Database prefix.
 * Kind regards
 *  Thread Starter [braindream](https://wordpress.org/support/users/braindream/)
 * (@braindream)
 * [12 years, 8 months ago](https://wordpress.org/support/topic/change-db-prefix-1/#post-4240539)
 * Thanks for the hint. Seems that I was a little bit too hasty 😉
 *  [mra13 / Team Tips and Tricks HQ](https://wordpress.org/support/users/mra13/)
 * (@mra13)
 * [12 years, 7 months ago](https://wordpress.org/support/topic/change-db-prefix-1/#post-4240642)
 * [@braindream](https://wordpress.org/support/users/braindream/), This issue is
   again for the same reason as explained in your other post here:
    [http://wordpress.org/support/topic/backup-htaccess-failure](http://wordpress.org/support/topic/backup-htaccess-failure)
 * Untile you fix that issue on the server, any feature that requires changing files
   or copying file won’t work.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Change DB Prefix’ is closed to new replies.

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## Tags

 * [file permission](https://wordpress.org/support/topic-tag/file-permission/)

 * 3 replies
 * 3 participants
 * Last reply from: [mra13 / Team Tips and Tricks HQ](https://wordpress.org/support/users/mra13/)
 * Last activity: [12 years, 7 months ago](https://wordpress.org/support/topic/change-db-prefix-1/#post-4240642)
 * Status: resolved