A public Foundry server can be listed through Steam. Turning the listing off removes it from the public browser, although anyone with the address can still try a direct connection.
- Stop the server and open Configuration Files.
- Open
app.cfgwith Text Editor. - Use
server_is_public=truefor a public listing orserver_is_public=falseto hide it.
- Click Save & Exit and start the server.
Use a password as well when access should be restricted. Hiding the listing by itself is not an access control.