Developers use this address when they are building new software. It is a safe sandbox for testing.
No. Port 1151 is in a different range and might be assigned to a different protocol (IETF reserves 1151 for unspecified use). Always use the exact port number.
Most frameworks support a -p or --port flag. For example: http localhost 11501
Before diving into port 11501 specifically, it helps to understand what localhost actually is. The biggest misconception about localhost is that it behaves like a normal website. It doesn’t.
She didn't expect a response. Her laptop wasn't running a server on that port. But the terminal blinked back: Developers use this address when they are building
Each component of http://localhost:11501 serves a specific purpose in network routing:
I am what listens where nothing should listen. Port 11501 was closed in 1997. Why are you knocking? Port 1151 is in a different range and
Applications that make unsafe assumptions about localhost can be exploited. Attackers who have already compromised your machine (or can run code on it) could potentially bind to the same port as your application, intercept sensitive traffic, and exfiltrate credentials.
lsof -i :11501