This document is an Internet Draft. Note that other groups may also distribute working documents as Internet Drafts.
Internet Drafts are draft documents valid for a maximum of six months.
Internet Drafts may be updated, replaced, or obsoleted by other documents at any time. The client side of the connection sends this command to indicate that it is willing to send and receive authentication information. The servers side of the connection sends this command to indicate that it is willing to send and receive authentication information. This optional command is sent to specify the account name on the remote host that the user wishes to be authorized to use. Note that authentication may succeed, and the authorization to use a particular account may still fail.