Localhost11501 Exclusive !!top!!

Tools like netstat , lsof , or ss can help identify which process is using the port.

When an application opens a port using an exclusive flag, it instructs the operating system's network stack to deny any other process from binding to that exact port—even if the other process attempts to use reuse flags like SO_REUSEADDR . Why Applications Demand Exclusive Access to Port 11501 localhost11501 exclusive

This returns a network tracking line ending with the active process ID: TCP 127.0.0.1:11501 0.0.0.0:0 LISTENING 4312 Use code with caution. Tools like netstat , lsof , or ss

Before an application can bind to a port, you should verify that no other application is currently using it. Tools like netstat