Here are some handy cheat-sheets to reference for Powershell, Git, ETC.
Here is a great list of network cheat-sheets.
This is a tool for testing "memorable site for testing clients against bad SSL configs" https://badssl.com/
If the service principal expires you may need to update the expiration by creating a new key. In Visual Studio Team Services, the ...
Often times you will need to invite a 3rd party to your Azure AD tenant to support your environment. When you add them to a resource, they...