powershell port powershell-2.0 firewall windows-firewall

How to find the port which is trying to connect?

we are having lab machines behind firewall. We used to ask our IT team to open the ports which are required.

We are memorizing port numbers for each application and ask them to unblock. It is really tough.

When we execute the application, is it possible to find which port number it is trying to access?

Solution

My favorite little program that will help you is TCPVIEW.exe (Sysinternals):

http://technet.microsoft.com/en-us/sysinternals/bb897437

If you run this on your server you'll see what ports are listening. If you run it on the client you'll what connections are being made and the ports they're connecting to.

How to `Import-Module` in PowerShell to parent session/process?
close and 'save as' for 100 of MS Paint files at once?
`Invoke-Conda` cannot catch any arguments after powershell 7.5.0 update
Powershell profile.ps1 cannot be loaded because its operation is blocked by software restriction policies
How can I capture the value of an untranslated SID in a Try/Catch code block?
PowerShell .Count returns 1 on empty array
How can I filter out text twice in Powershell?
SharePoint | Delete Version History using PnP PowerShell
WinRM cannot complete the operation. Verify that the specified computer name is valid
Using start-process in a loop, where some programs will have arguments and some don't; Way to not have if $Arguments -ne $null
How can I set left/right column justification in Powershell's "format-table"
Invalid operands found for operator -eq
Detect when user cancels $host.ui.promptforchoice prompt
How can I make sure Powershell will correctly render all non-latin characters into the output?
How can I choose between $MyInvocation.ScriptName and $MyInvocation.PSCommandPath in PowerShell?
Azure pipeline template: dynamically retrieve and story keyvault secrets
Maintaining property order with get-member
PowerShell - Return an array of all possible properties for an ADObject
List objects vs. Arrays in PowerShell
Run Invoke-Command in remote computer as administrator
Authenticate to Azure with certificate from Linux
How to recursively append to file name in powershell?
Mapped network drives are not showing in My Computer
Delete files in a folder except a list of extensions I specify
How to open 'This PC' using CMD or Powershell?
transfer the files from sub folder and sub folders recursively without specifying the folder name
Im creating a VM using terraform code in GCP. I would like to inject a script that runs when the vm is created upon startup
Remove-ItemProperty does not seem to work with -LiteralPath
How can I elevate Powershell while keeping the current working directory AND maintain all parameters passed to the script?
How do I remove or replace a built in alias in powershell?