Guacamole

Reference : http://tomba.tweakblogs.net/blog/9833/no-more-logmein-free-opensource-to-the-rescue!.html

Install the prerequisites :
apt-get install make libcairo2-dev libpng12-dev freerdp-x11 libssh2-1 libvncserver-dev libfreerdp-dev libvorbis-dev libssl0.9.8 gcc libssh-dev libpulse-dev tomcat7 tomcat7-admin tomcat7-docs

Download the source and the war file :

wget -O guacamole-server-0.8.3.tar.gz http://sourceforge.net/projects/guacamole/files/current/source/guacamole-server-0.8.3.tar.gz/download?use_mirror=freefr&r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fguacamole%2Ffiles%2Fcurrent%2Fsource%2F&use_mirror=optimate

wget http://sourceforge.net/projects/guacamole/files/current/binary/guacamole-0.8.3.war/download?use_mirror=heanet&r=http%3A%2F%2Fsourceforge.net%2Fprojects2Fguacamole%2Ffiles%2Fcurrent%2Fbinary%2F&use_mirror=gar