I notice one thing that's pretty serious, and that is your SSL certificate has expired. Go to Common Services > Server > Security > Certificate Setup, and re-generate a new SSL certificate.
Next, shutdown Daemon Manager, and delete all of the files and directories under NMSROOT/MDC/tomcat/work/Standalone/localhost. Then restart Daemon Manager. You should be able to use the alias function.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...