In the past I’ve often run into trouble with permissions and ownership of Joomla files/directories on linux systems.

Problems included

• Not being able to transfer files to the server using programs such as WinSCP.
• Not being able to install Joomla extensions, plugins etc.
• Insecure files and folders due to dangerous permissions and ownership settings.

What are the recommended best practices for setting permissions and ownerships in Joomla on linux systems?