You can access your Azure IaaS virtual machine (VM) in multiple ways like SSH or RDP, depending on your operating system and configuration. However, if you have issues with the RDP or SSH network configuration, you need to have a way to troubleshoot your virtual machine (VM). Luckily Azure offers you different management tools to work with Azure VMs for automation or troubleshooting. With the Run Command can run a PowerShell or shell script within an Azure VM remotely by using the VM agent. This scenario is especially useful when you need to troubleshoot operating system network configurations or user access configuration. For example, it can be convenient to reset RDP configurations on Windows Server virtual machines.
Azure VM Run Command in the Azure Portal
You can run the command directly from the Azure Portal. In the menu of the Azure VM, you can select Run command. Here you can find some predefined scripts to troubleshoot your Azure VM. In the case of a Windows VM, you will find scripts like configuring RDP port or enable PowerShell remoting. But you can also run your custom PowerShell script.
For Linux VMs, you will find predefined options to run a Linux shell script or ifconfig to list the network configuration.