How to change issues to in IBM DOORs Next Generation 7.0.3
Accepted answer
A default certificate is added when you start the server for the first time. You need to generate your own certificate and replace it.
You can find it in the <install dir>\server\liberty\servers\clm\resources\security directory - default file name is ibm-team-ssl.p12 but you can change it to whatever you like and then alter the server.xml file to point to it