Microsoft released a preview on Monday of a new Serial Console command-line tool that’s designed to help recover Linux and Windows virtual machines (VMs) running on Azure infrastructure. The Serial Console tool is used to access Azure VMs that are stuck, which can happen because of operating system misconfigurations, such as having incorrect file systems table (fstab) syntax or incorrect firewall rules. Alternatively, network changes could have been made that locked out the Remote Desktop Protocol port, precluding access.
Linux users accessing VMs on-premises were used to having direct access to VMs in such situations, and Microsoft wanted to provide a similar experience when using Azure VMs, according to a video chat between Corey Sanders, corporate vice president of Microsoft Azure Compute, and Hariharan Jayaraman, principal program manager on the Azure Linux Team.
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