AnsweredAssumed Answered

Does Canvas try to ping before LTI installation or launch?

Question asked by Angus Grieve-Smith on Nov 30, 2016
Latest reply on Dec 2, 2016 by Angus Grieve-Smith

We have several LTI tools that work fine on one server.  Recently I've tried to install them on another server that is behind a firewall.  When I use the URL form and click "Submit," nothing happens.  When I install with the "Paste XML" method, it installs, but then when I launch the tool I get a 500 error.


It looks like Canvas is trying to ping the URLs before install and launch.  I understand the security rationale, and I can request that we open ports on that server to the Canvas subnet, but I would like to confirm that this is what is happening.


Thanks in advance!