Changing permissions for folders and files in /var/www/?

Solution 1:

Make sure the group is www-data on '/var/www'

sudo chgrp www-data /var/www

Make '/var/www' writable for the group

sudo chmod 775 /var/www

Set the GID for www-data for all sub-folders

sudo chmod g+s /var/www

Your directory should look like this on an ls -l output.

drwxrwsr-x

Last, add your username to the www-data group (secondary group)

sudo usermod -a -G www-data [YOURUSERNAME]

Solution 2:

My Suggestion for the permission you can use below command to find and set p:

find /var/www/html/ -type d -perm 777 |xargs chmod 0755 --
find /var/www/html/ -type f -perm 777 |xargs chmod 0644 --

OR

For Directories:

 find /path/to/your/wordpress/install/ -type d -exec chmod 755 {} \;

For Files:

find /path/to/your/wordpress/install/ -type f -exec chmod 644 {} \;