This extension makes Guacamole behave as a web front-end for a single RDP server. Only the RDP server prompts for user credentials; the Guacamole app itself does not.

Use Maven. Go into the root directory of this repository (where pom.xml is located) and run:

mvn package

If there are no build errors, you'll find the jar file in the target directory.

Copy the jar to GUACAMOLE_HOME/extensions/. (For tomcat on CentOS 7, GUACAMOLE_HOME will be /usr/share/tomcat/.guacamole/.)

Edit configuration in GUACAMOLE_HOME/guacamole.properties:

singlerdp-title=Single RDP
singlerdp-hostname=127.0.0.1
singlerdp-port=3389

These three lines are all you need in guacamole.properties. Change the hostname to the IP or hostname of the target RDP server and the title to what you want to appear in the title bar. You'll only need to change the port if your RDP server is using a non-standard port.

The following additional settings can be configured in guacamole.properties but are not required.

Edit the guacamole version in the dependencies section of pom.xml and in src/main/resources/guac-manifest.json, then build the jar and install it.