3.1.5 Message Processing Events and Sequencing Rules

The NTLM Authentication: NNTP Extension is driven by a series of message exchanges between an NNTP server and an NNTP client. The rules that govern the sequencing of commands and the internal states of the client and server are defined by [RFC2980] and [MS-NLMP]. Section 3.1.1 completely defines how the rules that are specified in [RFC2980] and [MS-NLMP] govern NNTP authentication.