Step 3: Set permissions

To set the backend URL and perform updates, we need to set the correct permissions and ownerships in the directory. The ownerships should match the ones that you normally use on your server and/or your CMS. On Linux/UNIX systems, run the following commands:

chown −R <Your owner>:<Your group> .*
chown <Your owner>:<Your group> . htaccess
chown <Your owner>:<Your group> .

chmod −R 755 .*
chmod 755 . htaccess
chmod 755 .