Unable to save data to /var/cagefs/.../cl.php.d/alt_php.ini ([Errno 13] Permission denied

Issue

When trying to reset, add or configure PHP extensions within the PHP Selector, this error is displayed:

Unable to save data to /var/cagefs/.../cl.php.d/alt_php.ini ([Errno 13] Permission denied: '/var/cagefs/.../clseltmp_XXX') 

Environment

• PHP Selector
• CloudLinux 
• CageFS

Solution

1. Locate user cagefs directory
   

   # find /var/cagefs -user exampleuser

2. Reset the directory owner from the step above with the following command:
   

   # chown -R exampleuser /var/cagefs/XXX/cl.php.d

3. Update CageFS, and remount the user:

   # cagefsctl --force-update
   # cagefsctl -m exampleuser

4. Ensure that directories inside the problematic path have the correct permissions as well.

   # find /var/cagefs/XXX/cl.php.d -type d ! -perm 755 -exec chmod 755 {} \;

Cause

Incorrect permissions.