I think all the services are bound to localhost by default, so unless you’ve changed anything, the services should work without problems.
The only “expected exception” I can think of is the `OCIS_URL` environment variable, which should point to your external access (such as https://ocis.server.com ). In general, you should recheck all the environment variables that you’ve touched.
You might also need to restart the whole stack of services so the changes are picked up. I’d consider to restart the whole machine now in order to ensure all oCIS services run properly after the restart, either automatically or just running a simple command (just to ensure there is no service running that could affect the behavior)