To overcome this setting, the you need to create a vhost.conf file in your /path/to/vhosts/domain.tld/conf directory, and enter the following lines:

Replace domain.tld with your domain name as it was added in Plesk. Because Linux is case specific you will need to use the correct cases for the letters.

Once you create the file, enter the following command:

This updates the main httpd.include file to include the new vhost.conf file, and also gracefully restart the Web service, so the changes take effect.

1. Log in to Parallels Plesk Panel as admin. For more information, see Accessing Parallels Plesk Panel on Your Server.
2. If necessary, switch to Service Provider view. For more information, see Accessing Service Provider View in Plesk.
3. Click Domains in the left side menu, and then click Open in Control Panel next to the domain name you want to manage.
4. Click the Websites & Domains tab, at the top of the screen.
5. Click the name of the domain that you need to edit.
6. Click the PHP Settings tab.
7. Scroll down until you see open_basedir, on the left of the screen, and then select Enter custom value.
8. Add the needed directories to the current entries.

The list of directories used to limit the files can be opened by PHP. If the file is outside the specified directories, PHP scripts will refuse to open it. To separate directories, use a colon (:) on Linux and a semicolon (;) on Windows. For example, on Linux: /dir/upload:/usr/tmp

9. Click OK.

   Plesk automatically restarts the Apache instance for your domain and reload the new settings. Test your site to make sure it is working the way you want it to and make additional changes as needed.