Remote Desktop Connection to Ubuntu from Windows 7 / MacOS / iPhone
Remote desktop viewing and controlling capability is built in most Linux systems. In Ubuntu 10.10 Maverick or any older version (10.04, 9.10 etc.) via vino-server. You can enable remote desktop viewing and control capability by going to System > Preferences > Remote Desktop
In the preferences box tick the appropriate options. It is strongly recommended that you enter a password for connection authentication. The setting box above also tells you the hostname and ip address to be used to connect to the given machine. Now that the sever end is setup, you just need appropriate client to enable the connection.
Before we discuss the clients, a word of warning, the default connection over vnc server is not secured, so be aware of that, it is not a concern if you just intend to use this setup in your private LAN. Also it works best on LAN, I mean in terms of responsiveness, VNC is not as fast as RDP. If you plan on connecting from a machine outside your LAN, make sure you forward appropriate ports on your router (typically TCP port no 5900)
Client for Windows
On Windows you can get the VNC Personal Edition Viewer for Windows (x86 & x64) for free which you can use to connect to your Ubuntu desktop remotely. Feel free to share, if you use a better way of connecting to VNC server.
Client for Ubuntu
There are plenty of VNC clients that come with Ubuntu like Remote Desktop Viewer or Terminal Server Client which comes pre-installed on Ubuntu. But to make a secured and encrypted connection via SSH, I would recommend you do this.
Install vncviewer by doing
sudo apt-get install vncviewer
and then from command line do this
ssh -X -C username@remote_ip_or_hostname "vncviewer 127.0.0.1:0"
I am making the assumption that your Ubuntu SSH server supports X11 forwarding. With the command above, you would need to enter the password on two occasions first to connect to your remote machine via SSH and then the password for the local VNC connection. This is the ideal and most secured way of making VNC connections.
Client for iPod / iPhone
You can use Mocha VNC Lite, which is a free App for iPod Touch / iPhone /iPad that allows you to VNC servers.
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