I've been trying via SSH to grant my user 'demo' write permission to the var/www/ directory (to manage server pages). Filezilla keeps feeding back the error:" Directory /var/www/html/: permission denied". How can I fix this? I'm running Ubuntu with a LAMP stack.
You might try adding your user to the www-data group:
sudo usermod -aG www-data demo
and then to be sure:
sudo chown -R www-data:www-data /var/www
and:
sudo chmod -R 775 /var/www
Having said that, doing it that way will work, but when you use "demo" to add new files, then www-data will not have ownership of those files.
I recently read a great little article with an eloquent solution that took 5 minutes to implement and works like a charm:
http://blog.netgusto.com/solving-web-file-permissions-problem-once-and-for-all/
chmod