help
dconf editor
The dconf-editor Linux command manual page and help. The dconf-editor program provides a graphical interface for editing settings stored by other applications in the glib library gsettings or in the dconf database. The gsettings (1) and dconf (1) utilities provide similar functionality on the command line.
openvpn
Manual page and help for the openvpn Linux command. OpenVPN is an open source VPN daemon from James Yonan. Because OpenVPN is a universal VPN device that offers great flexibility, there are many options on this manual page. If you are not already familiar with OpenVPN, you may want to skip ahead to the examples section, where you will see how to create simple VPNs from the command line without the need for a configuration file.