Okay, well, it isn’t really magic – not even the Apple type – but it is pretty cool. Below is a post by OrcsWeb’s Jeff Graves providing a VERY handy script that can be used to instantly synchronize the machine key values for all ASP.NET versions on multiple Windows Server nodes in a web farm.
Read & Write .NET machine key with Powershell
Who cares? What’s the point? Well, if you have to ask, then you should leave the server management to the webteam at OrcsWeb because the MachineKey values in a web farm are extremely important to the proper functioning of your highly-available and highly-scalable ASP.NET applications.