IsPortActive

This script checks if a port is currently active or in use. It can check for active TCP and UDP connections on a specified port, by process name, or by process ID.

If the process name is svchost, the script will find the service and display name in addition to the process name.

Requirements

• PowerShell 7+

Installing

You can either download the PS1 script from here, or install using...

Install-Script IsPortActive -Force

Answer Yes to any prompts. -Force is optional, but it will force the script to update if it is outdated.

This script is published on PowerShell Gallery.

Usage

IsPortActive [-Port <int>] [-ProcessName <string>] [-ProcessId <int>] [-Version] [-Help] [-CheckForUpdate]

Parameters

Only one of the following parameters can be used at a time.

Parameter	Description
-Port	Specifies the port number to check for active connections.
-ProcessName	Specifies the name of the process to check for active connections.
-ProcessId	Specifies the process ID to check for active connections.
-Version	Displays the version of the script.
-Help	Displays the help information for the script.
-CheckForUpdate	Checks for updates of the script.

Examples

Description	Command
Check if port 443 is active	IsPortActive -Port 443
Check what ports are being used by process httpd	IsPortActive -ProcessName "httpd"
Check what ports are being used by process ID 1234	IsPortActive -ProcessId 1234

Screenshots

Check Port

Check Process Name

Check Process ID