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A Few of My Favorite Online Tools

IP Calculator ipcalc takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. By giving a second netmask, you can design subnets and supernets. It is also intended to be a teaching tool and presents the subnetting results as easy-to-understand binary values. IP Calculator Results. DNS Propagation Checkers whatsmydns.net lets […]

Shrinking EBS Windows Boot Volume

After migrating my physical server to AWS recently I needed to shrink the boot volume a bit. The original server’s drive was ~1TB, so that’s the size my boot EBS volume was after the migration, but since I only have about 125GB of used space I wanted to reduce the overall volume size to about 150GB. Not surprisingly AWS […]

Install PowerShell v5 on Windows Server 2008 R2 or 2012 R2

Prior to updating to PowerShell version 5 make sure to be running the latest version of .NET Framework (.NET 4.6.1 as of this writing). See Checking .NET Versions. Check Current Version of PowerShellRun either $Host.Version or $PSVersionTable.PSVersionInstall latest version of .NET. PowerShell 5 is part of Windows Management Framework (WMF) version 5 and can be downloaded from Microsoft […]

Install .NET 4.6.1 on Windows Server 2008 R2 or 2012 R2

Start by downloading .NET 4.6.1 from Microsoft. Launch the installer – I typically do this by running the command c:tempNDP461-KB3102436-x86-x64-AllOS-ENU.exe from an elevated PowerShell. Accept the licensing agreement and wait…. Check Version(s) of .NET InstalledFrom an elevated PowerShell run the following set of commands: Get-ChildItem ‘HKLM:SOFTWAREMicrosoftNET Framework SetupNDP’ -recurse |Get-ItemProperty -name Version,Release -EA 0 |Where { $_.PSChildName -match ‘^(?!S)p{L}’} […]