I am having a problem with a recent linux installation of SDP. 

I was trying to configure HTTP to HTTPS redirection (to secure traffic to/from SDP) by following the instructions here. ( https://www.manageengine.com/products/service-desk/faq-general-modules.html#ssl2)

Prior to that I successfully changed the Web Server Port using the script

/ManageEngine/ServiceDesk/bin/changeWebServerPort.sh

The following was done. 

• Stopped servicedesk with /etc/init.d/servicedesk stop
• Confirmed process ended, and SDP was not running
• Input (as root user) sh changeWebServerPort.sh 80 http
• SDP default port is 8080, wanted to change to 80 for easy end user access via URL
• Started servicedesk with /etc/init.d/servicedesk start
• Confirmed process started
• Successfully browsed and logged into SDP on port 80
• At this point is when I attempt to make changes to configure HTTP to HTTPS redirection. 
• Edit /ManageEngine/ServiceDesk/server/default/deploy/jbossweb-tomcat50.sar/server.xml
• Edit line 13 as noted in instructions
• Set varable redirectPort="443"
• port="80" already in place. 
• Save file
• Restart service desk with /etc/init.d/servicedesk start
• Attempt to browse to designated URL (which always worked prior to this) and received the following error

• I stopped the service and reverted the changes I made to server.xml
• I restarted the service hoping that it would resolve the issue.
  
• It did not. 
  

Please advise on any troubleshooting steps I could try, or log files I could provide to help with this. 
I cannot log into SDP at all so I cannot create a support file for you.