Thank you, Alexey, I read everything and my problem is a little different. Test server, no ssl, site on another server, there is https. Nodejs and job server are installed on the test server, the port is open and the scanner sees it - 5443. In the Studio, specify the address of the test server - http://ipadress:5443 Connection I see so ........

The system on the test server is - Ubuntu 18.04.1 LTS "Bionic Beaver"