I just installed UDOIT on-premise and followed the steps on Github to get the integration working with Canvas. It's not working for me unfortunately. When I click UDOIT on the course navigation link, I get the following message:
"Configuration problem, please ensure that your instance of UDOIT is configured correctly."
When I look at my access_log file on the server, I never see a hit to it from Canvas. Going to the our udoit.xml.php page shows XML data correctly. Right now, I only have http (port 80) open. Does it need to be https (port 443)? Thanks!