NNTP Status Responses and Response Codes
Each time the device acting as a client in an NNTP connection sends a command, the server sends back a response. The response serves to acknowledge receipt of the command, to inform the client of the results of processing the command, and possibly to prompt for additional information. Since NNTP commands are structured and formatted in a way very similar to that of SMTP commands, I'm sure it will come as no great surprise that NNTP responses are very similar to those of SMTP (described in Chapter 77). In turn, SMTP responses are based on the system designed for replies in FTP.
The first line of an NNTP response consists of a three-digit numerical response code, as well as a line of descriptive text that ...
Get TCP/IP Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
