Why am I getting a \'Permission denied\' error when connecting to my database on localhost?

Connect DATABASE Error: "Permission denied" on Localhost

Attempting to connect a database through PHP may yield different results when executed on the terminal compared to when run locally. In the provided scenario, the error "Connect DATABASE Error TYPE: 2002: Permission denied" indicates that the web server lacks the necessary permissions to access the database.

The issue often stems from SELinux security policies. By default, the policy "httpd_can_network_connect_db" is disabled, prohibiting the web server from establishing connections with remote databases.

Solution:

1. Verify the SELinux status by running:

   getsebool -a | grep httpd

2. If "httpd_can_network_connect_db" is set to "Off," enable it with:

   setsebool -P httpd_can_network_connect_db 1

3. The "-P" flag ensures the setting persists after a reboot.

Once the SELinux policy is modified, the web server should be able to connect to the remote database, resolving the "Permission denied" error.

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