The rest manage usernames manually, and sometimes make efforts to synchronize them with usernames assigned elsewhere. However, most usernames have been assigned without the benefit of a common standard, or method to ensure uniqueness across systems. Others never require the password to be changed. Adherence to good practices for the retirement and re-cycling of accounts is at the discretion of individual systems administrators or machine owner. 2.2 Username and password management by users.
Many computer users require access to multiple host systems.
They can end up with a long list of usernames and passwords which need to be managed. It has proven difficult for users to effectively keep track of multiple usernames and passwords. 3.3 Authentication of principals. Most multi-user hosts authenticate users at time of signon. Authentication of computers, and server processes is almost non-existent.