Checking if a port is open on a Windows system is essential for network troubleshooting, system administration, and security auditing. Open ports allow external connections to specific services or applications running on a computer, and knowing which ports are open can help identify potential vulnerabilities or unauthorized access.
To check if a port is open on a Windows system, several methods can be used, including the Command Prompt, PowerShell, and third-party tools. The Command Prompt method involves using the “netstat” command, which displays a list of all active network connections and listening ports. PowerShell offers a more advanced approach with cmdlets like “Get-NetTCPConnection” and “Test-NetConnection” for port-related tasks.