FTP introduction and flash XP tutorial

FTP introduction and flash ftp usage tutorial

What is FTP?

FTP is one of the TCP/IP protocol groups and is short for file transfer protocol. This Protocol is the basis for Internet file transfer. It consists of a series of specification documents to improve file sharing and provide non-direct use of remote computers, enables the storage medium to transmit data transparently and reliably and efficiently to users. Simply put, FTP is used to copy files between two computers. Copying files from a remote computer to a computer is called a "Download" file. If you copy a file from your computer to a remote computer, it is called an upload file. In TCP/IP protocol, the TCP port number of the FTP standard command is 21, and the port data port is 20.

FTP address format

The FTP address is as follows:
FTP: // username: password @ FTP Server IP address or domain name: FTP command port/path/file name
The above parameters are not required except for the FTP server IP address or domain name. For example, the following addresses are all valid FTP addresses:
Ftp://foolish.6600.org
FTP: // list: list@foolish.6600.org
FTP: // list: list@foolish.6600.org: 2003
FTP: // list: list@foolish.6600.org: 2003/soft/list.txt

FTP transmission mode

An FTP task transfers files from one computer to another, regardless of the location, connection method, or even whether the two computers use the same operating system. Assume that the two computers communicate over the FTP protocol and can access the Internet. You can use FTP commands to transmit files. There are some nuances in the use of each operating system, but the basic command structure of each protocol is the same.
There are two FTP transmission modes: ASCII transmission mode and binary data transmission mode.
1. ASCII transmission mode: assume that the file being copied contains simple ASCII code text. If the file running on a remote machine is not UNIX, during file transfer, FTP usually automatically adjusts the content of the file so that the file can be interpreted as another computer that stores the text file format.
However, this is often the case where the files being transmitted by the user are not text files, they may be programs, databases, word processing files or compressed files (although most of the word processing files contain text, they also contain non-printable characters indicating the page size and font information ). Before copying any non-text files, use the Binary command to tell FTP to copy them verbatim. Do not process these files. This is also the binary transfer to be discussed below.
2. binary transmission mode: in binary transmission, the file order is saved so that the original and copied files correspond one by one. Even if the destination machine contains files with bit sequences, it makes no sense. For example, if a Macintosh transfers an executable file to a Windows system in binary mode, the file cannot be executed on the other system.
If you transfer a binary file in ASCII mode, the translation will still be translated even if you do not need it. This slows down the transmission, damages the data, and makes the file unusable. (On most computers, the ASCII mode generally assumes that the first valid bit of each character is meaningless, because it is not used for the combination of ASCII characters. If you input a binary file, all bits are important .) If you know that the two machines are the same, the binary method is effective for text files and data files.

Flashftp tutorial

Flashfxp is a powerful fxp/FTP software. If you are frustrated with other ftp tools, use this handy software instead. Flashfxp is easy to use and has a Chinese version.

This article describes the basic functions of flashfxp, including website setting and website uploading.
1. Open flashfxp and click "Site"/"Site Manager ". The shortcut key F4.

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2. In the "Site Manager" dialog box, click "create site". In the displayed dialog box, enter a site name.

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3. On the General Panel, enter the IP address, port, user name, and password of the FTP space, and click "Apply". The site is set. Click "Connect" to connect to the site.

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4. After connecting to the site, on the local disk, find the site directory to be uploaded, right-click it, and click transfer ". Uploading a website is easy to implement.

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In the same way, select a file or folder in the remote space, right-click it, and click "transfer" to download it to the local device.