Remmina is a free and open source remote desktop client for POSIX-based computer operating systems.

It supports the Remote Desktop Protocol (RDP), VNC, NX, XDMCP, SPICE, X2Go and SSH protocols and uses FreeRDP as foundation.

[4][5] Remmina is in the package repositories for Debian versions 6 (Squeeze) and later and for Ubuntu versions since 10.04 (Lucid Lynx).

[6][7] As of 11.04 (Natty Narwhal), it replaced tsclient as Ubuntu's default remote desktop client.

[10] A common use is to connect to Windows machines, to use servers and computers remotely via Remote Desktop Services,[11] by system administrators[12] and novice users.