Automate AWS MFA Credential Renewal with OCR and PowerShell

Problem Statement Multi-Factor Authentication (MFA) is a relatively easy mechanism to improve the security of your Amazon Web Services (AWS) cloud environment. Instead of logging into the AWS Management Console using a username and password, you also have to provide a time-based one-time password (TOTP). The same concept applies when …

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Finding an AWS EC2 AMI with the AWS PowerShell SDK

Problem Statement If you’ve ever launched an Amazon EC2 instance (aka. virtual machine), you’re probably familiar with the concept of an Amazon Machine Image (AMI). AMIs are simply virtual machine images that you can launch your EC2 instance with. Because anyone can publish a custom AMI, and because AWS has …

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Control Bluetooth on Apple MacBook Pro from the Command Line

If you’re like me, you try to automate everything, even the small stuff. I have a few Bluetooth devices that I occasionally use with my MacBook Pro: Apple Magic Trackpad 2 Apple Magic Keyboard Bose QuietComfort 35 Sennheiser PXC550 Getting Bluetooth devices powered on and connected isn’t always the easiest …

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Rescan SCSI Controller on Linux to Detect New Disks

I am running Ubuntu Linux virtual machines on VMware ESXi (vSphere Hypervisor), and needed a mechanism to add SCSI disks to VMs without having to reboot. After adding the disk in VMware ESXi, the disk still wasn’t visible to the guest operating system. It seemed like I needed some mechanism …

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Designing Command Line Tool User Experience

Linux Terminal Running Docker

Introduction Software developers, infrastructure & DevOps engineers, and operational IT staff are heavy users of the command line. The benefits of the command line are clear: Commands are / should be readable Commands are repeatable Commands can be shared amongst a team (eg. via source control / chat / etc.) …

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Azure PowerShell Extensions Updates

The Azure PowerShell Extensions module (AzureExt) for Windows PowerShell has seen another interesting update! Let’s take a look at some of the high-level changes: External dependencies have been completely removed The module now supports PowerShell ISE Snippets for Azure Resource Manager (ARM) Resources New command: Remove-AzureRmResourceGroupGui New command: Start-AzureRM Check …

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