How to configure a WU-FTP server in a Linux environment

Source: Internet
Author: User
Tags anonymous file upload ftp web services linux

In many network applications, FTP (File Transfer Porotocol) has a very important position. A very important resource in the Internet is software resources. and a variety of software resources are mostly placed in the FTP server. It can be said that FTP and Web services account for almost 80% of the entire Internet application.

The FTP service can be divided into two categories depending on the service object: One is the system FTP server, which only allows legitimate users on the system, and the other is an anonymous FTP server that Anonymous FTP server and uses anyone to log on to the FTP servers to get files.

First, select and install FTP server software

If you are installing the Linux system, select "FTPD" When you choose to start the process, after installing the Linux system, it has installed a default FTP server into the system. We can already use it to implement the function of the system FTP server. We just need to make some personalized settings on the basis of our needs.

In the vast majority of Linux distributions are selected Washingtonuniversity FTP, it is a well-known FTP server software, generally referred to as wu-ftp. It is powerful and works well with many Unix operating systems, such as IBM AIX, FreeBSD, HP-UX, NeXTstep, Dynix, SunOS, Solaris, and so on. So the FTP server on the Internet, half has adopted it. WU-FTP has many powerful features that are well-suited to the management requirements of larger-throughput FTP servers:

1 The file can be downloaded at the same time the user to do automatic compression or decompression operation;

2 can make different access restrictions on different network machines;

3 can record the file upload and download time;

4) can display the transmission of relevant information, user-friendly timely understanding of the current transmission dynamics;

5 can set the maximum number of connections, improve the efficiency, effectively control the load.

Ii. composition of the WU-FTP

After installing the WU-FTP, you will see the following five executables in the/bin directory:

FTPD FTP Server program

Ftpshut for shutting down the FTP server program

Ftpcount Show current online numbers

Ftpwho View current FTP server connections

Ckconfig Check that the FTP server is set correctly

In addition to these executables, it also generates seven profiles under the/ETC and/var directories:

/etc/ftpusers
/etc/ftpaccess
/var/run/ftp.pids
/etc/ftpconversions
/var/log/xferlog
/etc/ftpgroups
/etc/ftphosts

When WU-FTP is installed, a special user FTP is created and a ftpd directory is created in the/home directory, which is automatically positioned when the user logs on anonymously. Several subdirectories are typically created in this directory.

/home/ftpd/bin holds some executable files for use by FTP users.

/home/ftpd/etc stores some configuration files for use by FTP users.

/home/ftpd/pub store information for downloading.

/home/ftpd/incoming Store the space for uploading information.

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