Let's break down http://localhost:11501 into its two key parts: localhost and 11501 (the port number).
http [METHOD] URL [REQUEST_ITEMS]
– Some tutorials reference port 11501 in the context of database configuration, particularly with MariaDB and MySQL replacements. The localhost interface is used by privileged users to access the operating system, but it’s important to note that localhost is not reachable from the internet and should never be exposed publicly. http localhost 11501
http://localhost:11501 represents a local development server bound to port 11501 on your own machine. Since port 11501 has no official IANA assignment, it’s an excellent choice for custom applications, development servers, and testing environments where you want to avoid conflicts with well-known ports.
python3 -m http.server 11501
So, http://localhost:11501 is a request to connect to a web service running and listening on port 11501 .
While other applications can use this port, 11501 is the default assignment for the UniFi Discovery Tool and specific local management interfaces for UniFi on Windows/macOS. Let's break down http://localhost:11501 into its two key
To understand this address, it helps to break it down into its three core components:
If an app running on a different port (like a React app on localhost:3000 ) needs to fetch data from your API on localhost:11501 , ensure your backend code allows Cross-Origin Resource Sharing (CORS) for that specific origin. While other applications can use this port, 11501