Https Localhost11501 2021 Jun 2026

The connection string commonly appears in developer environments. It is frequently associated with Microsoft Dynamics 365 Business Central (2021 Release) containers. It also appears in vCenter Server Local Plugins and specialized ASP.NET Core web applications.

This part is ambiguous. It could be:

Some tutorials use non-standard ports like 11501 to avoid conflicts or to illustrate that ports are arbitrary. The /2021 might be a placeholder. https localhost11501 2021

).listen(11501, () => console.log('HTTPS server running at https://localhost:11501'); );

This creates two files: localhost+2.pem (the certificate) and localhost+2-key.pem (the private key). You can now use these files with your web server to enable HTTPS. This part is ambiguous

Developers use random or specific high ports (like 11501) to avoid conflicts with other standard services running on the machine. If a developer is running multiple local websites simultaneously, one might be on port 5000, another on 8080, and another on 11501.

GET / - 200 OK https://localhost:11501/api/data one might be on port 5000

Some corporate firewalls or security software block high-numbered ports.

If the bypass link is missing, type chrome://flags in your address bar, search for Allow invalid certificates for resources loaded from localhost , change it to Enabled , and relaunch the browser. 2. Generate a Trusted Local Certificate Using Mkcert