What is CGI, IIS, and VPS "suggested collection"

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The company came to heaven . What we do is on the website . It's really a big challenge for me . I have been engaged in Android, about web And a development website server The value of knowledge is almost zero . It should be said that , Now I just have a technician , We met yesterday CGI ERROR error （The specified CGI application misbehaved by not returning a complete set of HTTP headers.） It took me a long time . After climbing this morning . Finally find the problem . The following is to sort out the newly learned knowledge ：

CGI（Common Gateway Interface）, If we did it yesterday server when , We have this problem , I don't think I know this guy , stay server When deploying the website , This guy suddenly appeared in front of me , All at once, CGI Got to know me . But I don't know it , At that time, I was depressed .

I'll tell you who you are, buddy ？CGI What is it? ？CGI yes HTTPserver Work with programs on your or other machines “ conversation ” A tool of , Its program must be executed on the network server On .

CGI What skills do you have, buddy ？ Most of CGI The program is used to interpret and process the input information from the form , And in server Generate corresponding processing , Or feed back the corresponding information to the browser .

CGI The program makes the web page interactive .CGI Brother, the steps to deal with things are ：（1） adopt Internet Send the user request server.

（2）server Receive user requests and submit them to CGI process .（3）CGI The program passes the processing results to server.（4）server Send the result back to the user .

IIS Is a standard site server： The construction of the site is based on the site server Of . stay UNIX or Linux On the platform ,Apache Is the site server.

And for Windows NT/2000/2003 Come on ,IIS Is the standard site server.IIS It's a service . yes Windows 2000 Server A component of the series . Different from general applications , It is a part of the operating system like a driver , It has the service function that is started at the same time when the system is started .

IIS 5.0 Is used for Windows 2000 Server series server Network and Applications server. It's about building Internet/Intranet One of the basic components of .IIS 5.0 Also agreed to Internet/Intranet Publish information on webserver. IIS Through Hypertext Transfer Protocol (Http) Transmit information , It can also be configured IIS To provide file transfer protocol (FTP) And other services .

VPS(Virtual Private Server) It refers to a virtual private server, Is a server Divided into virtual independent exclusive server technology .

Each use VPS Virtual private technology server It has an independent public network IP Address 、 operating system 、 Hard disk space 、 Memory space 、CPU resources , Programs can also be installed 、 restart server Other operating , And an independent implementation of server Exactly the same as .

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