Shellinabox

"shellinabox" is a web based terminal that uses Ajax technology to provide the look and feel of a native shell.

It's a web terminal.

Shell In A Box implements a web server that can export arbitrary command line tools to a web based terminal emulator. This emulator is accessible to any JavaScript and CSS enabled web browser and does not require any additional browser plugins

Download the right .deb file from: http://code.google.com/p/shellinabox/

wget http://shellinabox.googlecode.com/files/shellinabox_2.10-1_a
sudo dpkg -i shellinabox_2.10-1_amd64.deb

Edit /etc/default/shellinabox so that the default port is 443.

sudo nano /etc/default/shellinabox
sudo service shellinabox restart

Mes info: https://help.ubuntu.com/community/shellinabox