Single sign-on is the desire to have 1 set of authentication credentials and account information per user on a network. It’s a problem with which institutions large and small struggle. For large institutions the problems are often related to scalability and compatibility with large numbers of disparate systems. For smaller organizations the issues are often related to the manageability of the infrastructures. Finding a solution with the right fit for a particular network can be daunting to say the least. I decided to review what the options were to consider implementing one of them for a network with about half a dozen users and about 50 systems (many virtualized).