自己写的c语言版的web代理服务器。非常底层的实现方式，支持多线程。对于学习网络的人有参考价值。-himself wrote the c language version of the web proxy server. Very bottom of the ways to support multithreading. Learning Network for the reference value.

sock5代理服务器的CBuilder源代码，绝对经典的代码，目前网上可以找到的最好最小的代码，参考价值巨大。-sock5 Proxy CBuilder source code, the code is absolutely classic. Currently, the web can find the best minimum code, great reference value.

VB写的建代理服务器，比较初级，有参考价值-VB construction of a proxy server, more junior, have reference value

http 代理 源码分析,学习所用，很有参考价值.-http proxy source code analysis, learning the use of great reference value.

RADIUS is a C/S structure of the agreement, the client is NAS (Net Access Server first) server running RADIUS client software, any computer can become a RADIUS client. Authentication mechanism of RADIUS protocol, can use PAP, CHAP or Unix login authe