网络编程不得不看的两本神书，涵盖了所有Linux接口函数的详细介绍和Linux内核解读，两书在手，编程无忧。
Network programming has to read two books of God, covering all the detailed introduction of Linux interface functions and Linux kernel interpretation, two books in hand, programming worry free. (2018-06-25, C/C++, 9447KB, 下载14次)
这个是linux下ntp服务的源代码，版本是4.2.4p7，包括server和client。
This is the linux source code under the ntp service, version 4.2.4p7, including the server and client. (2009-08-31, C/C++, 3303KB, 下载246次)