增强使用TELNET协议的安全性

Ｉｎｔｅｒｎｅｔ技术在广泛用于各行各业形成各自的Ｉｎｔｒａｎｅｔ或Ｅｘｔｒａｎｅｔ网络的同时，网络应用的安全问题也显得越来越重要。ＴＥＬＮＥＴ是常用的网络应用协议之一，该文分析了ＴＥＬＮＥＴ协议的传输机制及安全漏洞，根据自行开发的务性能路由器对安全性的要求，提出了在使用ＴＥＬＮＥＴ协议时增强安全性的解决方案，包括ＩＰ分组过滤、加密隧道、一次性口令认证技术（Ｏｎｅ－ＴｉｍｅＰａｓｓｗｏｒｄａｕｔｈｅｎｔｉｃａｔｉｏｎｓｙｓｔｅｉｎ，ＯＴＰ）及ＴＥＬＮＥＴ代理服务器（ｐｒｏｘｙｓｅｒｖｅｒ），实践证明该解决方案有一定实用价值。ＴＥＬＮＥＴ协议，ＩＰ分组过滤，加密隧道，一次性口令，ＴＥＬＮＥＴ代理服务器

An Euhancement on the Security in the Use of Telnet Protocol

The security of network applications becomes more and more important with widespread use of Internettechnology in every fields for structuring their own Intranet or Extranet. Telnet is one of the network applicationprotocols in the common use. This paper analyzes transport mechanism and hidden trouble of the Telnet protocol,and offers the solution according to the security requirement of the high performance router developed by our-selves. This solution is an enhancement on the security in the use of Telnet protocol, including IP-packet filter-ing, secret tunnel, one-time password authentication system. OTP, and Telnet proxy server. There is a practicalvalue.