When we use a browser to use the highway in the Internet, we need to use a transport control protocol such as HTTP, FTP to accurately find resources, get files, this type of pass.
The control protocol is like the traffic sign on the road. If you don't understand it, you will not be able to reach the place you want to go. The following author is talking about the problem in this area, I hope to give the initial time.
Surfing friends bring some convenience.
1, http
English Name: Hyper Text Transport Protocol
Chinese Name: Hypertext Transfer Protocol
Function introduction: It is a wide range of communication protocols when using the most extensive communication on the Internet, and all WWW programs must follow this protocol standard. Its main role is
A resource server file is accessed, including browsing, downloading, running, etc., which is specified on the server, that is, through HTTP we can access the Internet
The resource of the WWW.
Examples http://www.chinayancheng.net/test.html
This example shows the user wants to access a file name called Test.html, which is stored on a resource server such as www.chinayancheng.net.
2, FTP
English Name: File Transfer Protocol
Chinese Name: File Transfer Protocol
Function introduction: This protocol is one of the methods of acquiring files from the Internet, which is used to transfer files with file servers, through which users can
To easily connect to the remote server, view the file content on the remote server, and you can also copy the required content to your computer;
On the other hand, if the file server authorization allows the user to manage files on the server, the user can put the content on its local computer.
Upload on the file server, let other users share, and also freely edit the above files, such as deleting, moving, and copying files.
, Rename, etc.
For example ftp: //ftp.chinayancheng.net/pub/test.exe
This example shows the file that the user wants to download is stored on the computer named "ftp.chinayancheng.net", and the file is stored in the PUB subdirectories under the server.
The content downloaded is Test.exe.
3, File
English Name: File
Chinese Name: Local File Transfer Protocol
Function introduction: This protocol is a method of obtaining a file from the user's own computer. It is displayed on the screen of the navigation system on your own hard drive from the user's own computer.
Example: File: /// C: /yancheng/test.htm
This example indicates that the user wants to view a file called Test.htm in its own computer, which is stored in the C disk YANCHENG directory. The point you should pay attention to here,
The disc is followed by "|" instead of ":"; additionally, since the computer is omitted, File: The following is three slash "///".
4, Telnet
English Name: Telnet
Chinese Name: Remote Login Protocol
Function introduction: This protocol allows the user to use its computer as a terminal on the remote host, through which user can log in to the remote server and use the text interface
Command coupled and control the remote computer without the function of the graphical interface in WWW. Once the user establishes contact with the remote server with the Telnet, the user's gauge
The computer can enjoy the same power of the remote computer local terminal, and the local terminal can also use the server's CPU, hard disk, and other system resources.
For example: telnet: //yancheng.jsinfo.net This example indicates that the user is planning to log in to a remote computer called YANCHENG.JSINFO.NET, control and manage files on the remote server through its own computer.
Resource.
5, Mailto
English Name: mail to
Chinese Name: Email Agreement
Function introduction: This protocol represents mail email through the Internet, using Mailto, we can create a hyperlink to the email address.
Example: Mailto: zys666@21cn.com
This example is prepared to send an email to the user zys666, which is set on the computer 21cn.com. Email We can send text to
Party, you can also send multimedia files such as images, sounds, animations to users.
6, News
English Name: News Group
Chinese Name: Network News Group Agreement
Function introduction: This protocol can access thousands of newsgroups through the Internet, users can read the contents of these newsgroups, or write to these newsgroups, various letters
The interest is stored in a computer called "Usenet" news server.
Example: News: Rec.food.RestAutants
This example shows that users want some things from the USENET newsgroup, read some contents in discussion groups related to "Rec.Food.Restautants". network
The topic of the newsgroup discussion includes information from all aspects from politics, economy, science and technology, culture, humanities, and society, users can easily find one with their own interests, hobbies
Compliant newsgroups and express their views on it.
7, WAIS
English Name: Wide Area Information Servers
Chinese Name: Wide Area Information Server Agreement
Features: This protocol is deep way of searching information on the Internet, providing hyperlinks related to the wide area information server database, open hyperlinks, users can
Query or get information from any of the Internet on any database.
Example: wais: //cheops.anu.edu.au
This example shows that the user is prepared to query information on a computer called "Cheops.anu.edu.Au", when the user enters the above address in the browser address bar, WAIS will
Ask the user query with a web page, when entering the keyword in the browser's web page, you can fully search for text. Searchingable can be copied directly
In the local computer.
8, gopher
English name: gopher
Chinese Name: One Information Inquiry System Agreement
Function introduction: This protocol defines an information query system on the Internet. The system is similar to WWW menu system, but it is a plain text method, using the menu above it.
You can search for related network information; additional users can easily transfer from a gopher server to another GOPHER server to search and
copy.
Example: Gopher: //showme.missouri.edu/roundcolumbia
This example shows the content of the AroundColumbia directory on the server named "Showme.Missouri.edu" ShowMe.Missouri.edu. If the above address is concrete
The file name, then transferring the user from the server will be a text file; if there is no file name, it will be the menu from the server side to the user.
