Well, first of all, he's not talking about a Microsoft-written library, he's just speaking generically of C#/.NET libraries written by others. But Redis's auth

Well, first of all, he's not talking about a Microsoft-written library, he's just speaking generically of C#/.NET libraries written by others. But Redis's authentication is very simple in any case. There's a password. A password, one. That's it. There are no accounts, no usernames, there's no "infrastructure" or any way to hook it into LDAP or other insanity. There's no accounting. It's not for the kind of authentication ActiveDirectory does. In practice, it's more of an "Oops, did you really mean to connect to that server?" thing.