Problem: Want to send email via WordPress plugin. I confirmed that server’s port 465 587 is open and enabled. But there is an error saying permission denied issue.
The necessary port is enabled. So after some research the problem is SELinux is enabled.
You can check out https://www.itdailydocumentation.com/?p=357 to disable SELinux.
Problem: when trying to install a plugin via whether manually upload or WordPress plugin page. There is a pop-up box that requires you to fill FTP username and password.
If people do not know their FTP login username and password, they never able to install wp plugin 🙁
Solution: In wp-config.php , add below line at the end of the file
define('FS_METHOD', 'direct' );
to force WordPress to write files directly. And you may also need to change the permission in wp-content and wp-includes
For the risk of adding FS_METHOD DIRECT please check out this post.
Problem: Try to install or update a plugin in WordPress by upload file or install package in WordPress. The user got this error: Could not create directory. (path) or An error occurred while updating (package): Could not create directory
Solution: Enter command in your porject: chown -R www-data:www-data wp-content