Guacamole Installation
From blinkenwiki
These are supposed to be the only necessary steps to install Guacamole, but the add-repository step didn't work:
sudo add-apt-repository ppa:guacamole/stable sudo apt-get install guacamole-tomcat
So, had to install from source. Installation of prerquisites:
sudo apt install libcairo2-dev sudo apt install libjpeg-turbo8-dev sudo apt install libpng-dev sudo apt install libtool-bin