telnet 协议的最终 RFC 是什么 [英] What is the final RFC for telnet protocol

问题描述

实际的 TELNET 规范是什么?我发现 RFC 854 很旧.

What's the actual TELNET specification? I found RFC 854 which is very old.

推荐答案

自从 RFC 854 发布以来，基本的 TELNET 协议并没有发生显着变化(它已经是 Arpanet 中使用的 TELNET 协议的改进，在 TCP 之前/IP，所以有多年的经验).它旨在允许使用 OPTION 机制进行扩展，而不是更改协议本身.有许多 RFC 描述了该协议的选项，RFC 1123 包含对此(和其他)协议的许多澄清和改进.

The basic TELNET protocol has not changed significantly since RFC 854 was published (it was already a refinement of the TELNET protocol that was used in the Arpanet, prior to TCP/IP, so there were many years of experience with it). It was designed to allow for extensions using the OPTION mechanism, rather than changes to the protocol itself. There are many RFCs that describe options for the protocol, and RFC 1123 contains a number of clarifications and refinements to this (and other) protocols.

如今，TELNET 大多是过时的协议.SSH 已在很大程度上取代了它，因为它具有内置的加密和身份验证(这些可作为 TELNET 中的选项，但采用率参差不齐).

These days, TELNET is mostly an obsolete protocol. SSH has largely supplanted it, as it has built-in encryption and authentication (these are available as options in TELNET, but adoption is spotty).

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