Several recent changes I made to our web server, compiling and installing the most recent versions of openssl and gnupg, and installing new SSL certificates with a slightly different more unified naming convention, broke guacd, the daemon that interfaces to the server to provide mapping of vnc or ssh to a desktop or terminal.
I have since recompiled guacd and fixed the configuration file to reflect the new naming convention for the certificates. The change to certificate naming and location allows me to drop a new certificate into one place and have it be effective system wide.