OPCServer

Currently, most of people use MS DCOM/COM+, Java Bean/RMI, and Corba to do distributed computing over internet. All of these technologies are provided with some tools and intermediate objects to simplify internet development. However, these technologies have one common and fundamental problem that all of the calls between a client and a server are blocked for a returned result (please correct me if this is wrong). A client stays still, and has to wait for a while after sending a request to a server. If the request is a lengthy action, the client application seems to be dead to a user. In most cases, we could use a worker thread at the client side to do background computation for solving this problem. However, this comes with an expensive price, more coding, data synchronization and mess in coding logic. Additionally, I also doubt that these technologies are able to really move data across internet efficiently.

SPEI计算SPEI的R语言版与可执行版（含下载网址）.rar(SPEI calculated SPEI R-language version of the executable version (with download link). Rar)

计算机网络讲义谢西仁的，非常出名第五版计算机网络讲义谢西仁的，非常出名第五版(West Yan Xie computer network notes, very well-known computer network notes the fifth edition of the West Yan Xie, very famous Fifth Edition)

利用Libnids开发包设计的检测攻击的源代码(use Libnids development kits designed detection of the source code attacks)

说明：  后门zxshell3.0 一个功能强大的后门(Zxshell3.0 a powerful backdoor backdoor)

关于FTP的代码,支持网络间的文件传输,用户权限的设定.(on FTP code, the support network file transfer, set user privileges.)

实现网络聊天功能的软件源代码。实现网络聊天功能的软件源代码(Realize network chat software source code. Realize network chat software source code)

网络重传选择协议，可以检查传输信息的正确性。通过接受方的校检，通知发送方重新发送。 ( Network retransmission protocol, you can check the correctness of the transmission of information. By accepting the prosecution s school to notify the sender to resend.)

VB开发的IP测试程序，这是在我工作中写的调试程序，在配置文件中只需要写上相应的IP，程序就会循环测试IP地址是否在线，不在线的话就会报警提醒(VB development of IP test program, which is written in my work debugger, just write in the configuration file on the corresponding IP, the program will loop test IP address is online, not online, then it will alarm to remind)

屏幕广播，在局域网内同段IP内进行屏幕广播和监控(Catch Computer desk)