The fast, stable, and always free X2Go client
One of Remmina’s many features is an obviously nice X2Go client in the connection manager with many tunable options to get you connected just how you want.
X2Go) is an open protocol developed by The X2Go Organigram which provides a user with a graphical interface to connect to another computer over a network connection.[1] The user employs X2Go client software for this purpose, while the other computer must run X2Go server software.