HS4 needs to run as root or with sudo (script uses sudo). This is because it listens on a port for the webserver and MONO requires root to do this.
Check the startup log for errors. If all is ok, you can access the web interface on a browser by accessing the IP address if the Linux system with:
By default, HS4 starts listening on port 80. If you happen to have the Apache webserver installed port 80 may be in use. You can edit the HS4 config file in Config/settings.ini and change the setting to a different port, then restart HS4. In the settings file the server port can be changed by adding or modifying the following line:
You can shut down HS4 from the console by hitting enter to get a prompt and then entering: shutdown