"Failed to connect to connect to FTP server" issue (Wordpress)

I set up a Wordpress installation on my web server. As soon as I tried to install a new theme/plugin, I got the message "Failed to connect to FTP server mydomain.com:21". I was certain that the address and login credentials where correct since I could connect to my FTP server with an FTP client (Filezilla).

I proceeded to set my wp-content folder's permissions to 755, as well as it's contents with:

chmod -R 755 /var/www/mywordpressfolder/wp-content/

I then changed ownership of the wp-content folder and its contents to the www-data user (apache user/group).

chown -R www-data /var/www/mywordpressfolder/wp-content/

This solved my issue. Needless to say, change mywordpressfolder with where your wordpress installation is. If your installation is not in a folder just use /var/www/wp-content/. If you get a "Permission denied/Operation not permitted" message, you probably omitted using "sudo" in front of the command.

FTP to GoDaddy servers is empty

If your host is Godaddy and you've created an FTP user, and you can see nothing when you FTP with a program to your space, it's because your user's path is not set to /. Just go to Manage FTP users in GoDaddy's hosting control center, and change the path of your user to /.