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protocol interpreter" into real ftp protocol commands, such as USER and PASS, in order to interact with the server.
One is data connection, that is, the real file transmission is performed on this connection. The data connection port of the server is 20, and the data connection port of the client is randomly generated. The data connection only exists when the fi
1. The LIST command is used to list sub-directories and file information in a specified directory. If no directory name is specified, all sub-directories and file information in the current directory are listed by default and returned to the client.
-- If the path name specifies a directory name, the server sends a list
. Statusdescription); Response. Close (); } } }}How To:list Directory Contents with FTPThis is the sample shows how to list the directory contents of an FTP server.Example:usingSystem;usingSystem.IO;usingSystem.Net;usingSystem.Text;namespaceexamples.system.net{ Public classWebrequestgetexample { Public Static voidMain () {//Get the object used to communicate with the serv
I. FTP instructionsThe common FTP in Linux system is vsftp, that is, very Security File Transfer Protocol. There is also a proftp (profession FTP). Here is also a simple description of the configuration under Vsftp.VSFTP provides 3 types of remote login options:(1) Anonymous login methodJust don't need username, passwo
, select "No";
6. Authentication and authorization informationAuthentication Please select "Basic", do not recommend to open "anonymous", authorized users can specify a specific scope, if the FTP user does not need a lot of words, it is recommended to select "Designated users", the right to select "read" and "Write"; select "Finish".
7. Test FTP connectionY
Install and configure the FTP server in Centos5.6. check whether the FTP server has been installed: rpm-qa | grepvsftpd2. check that the FTP server version that can be installed is yumsearchvsftpd3. install the
Installing the FTP server under CentOS 7 allows hosts in the LAN to have a site to share files with.Under the Linux system, VSFTP is a widely used FTP software, its features are small and light, safe and easy to use. At present, in the open-source operating system commonly used FTP software, in addition to vsftp, mainl
users, select the option in the red box on the right of the interface.
Step 3. Other settings of Serv-U
Anonymous Logon:
Open Serv-U, go to domains-> user.dns0755.net-> Users, right-click a user, create a user, name it anonymous, and configure the user's directory, you can log on to Serv-U anonymously.
Traffic limit:
Open Serv-U and enter domains-> user.dns0755.net-> Users-> User Name,
Allow only ()
This is a good performance of the server software, because it has a number of powerful features and large throughput, the internet has more than 60% of the FTP server used it.
Installation and operation
Here's an example of Redhat Linux.
1, installation
Depending on the service object, the FTP service can be divi
In order to achieve the Linux environment FTP server configuration, the vast majority of Linux distribution suite is the use of Washington University FTP (WU-FTPD), which is a good performance of the server software, because it has a number of powerful features and very large throughput, More than 60% of the
Linux FTP ServiceActive Mode Port : The server actively initiates a data connection. The client establishes an FTP data connection to the server port . The server sends data from port to client random port. Passive Mode PASV : The serv
directories. Click the tools directory and you will find that it automatically points to the "Tools" directory under the f disk of the server.
Advantages of this method: the link function is implemented without a third-party tool and is particularly useful when multiple drives are available. If you want to link to a complete partition, you can create a folder under the root directory of the site with the same name and drive letter.
Disadvantages
tools directory and you will find that it automatically points to the "tools" directory under the f disk of the server.
Advantages of this method: the link function is implemented without a third-party tool and is particularly useful when multiple drives are available. If you want to link to a complete partition, you can create a folder under the root directory of the site with the same name and drive letter.
Disadvantages of this method: You need to
third group is the anonymous group, which is the anonymous group. By default, this group has minimal permissions. It can only download files in a restricted directory, but it cannot upload files to the FTP server. In general, however, this group is disabled for security reasons. That is, you cannot download any files
package under/RedHat/RPMS, and then run the following command in the terminal command window to start the installation process:
[Root @ ahpeng RPMS] rpm-ivh vsftpd-1.1.3-8.i386.rpm
2. start/restart/Stop the vsftpd service
From Red Hat Linux 9.0, vsftpd starts the vsftpd service in standalone mode by default by running the following command in the terminal command window:
[Root @ ahpeng root]/etc/rc. d/init. d/vsftpd start
Restart the vsftpd service:
[Root @ ahpeng root]/etc/rc. d/init. d/vsftpd
the terminal command window:
[Root @ ahpeng root]/etc/rc. d/init. d/vsftpd start
Restart the vsftpd service:
[Root @ ahpeng root]/etc/rc. d/init. d/vsftpd restart
Disable the vsftpd service:
[Root @ ahpeng root]/etc/rc. d/init. d/vsftpd stop
After confirming that the vsftpd service has been started, we can enter "ftp FTPAddres" in the DOS command window of any Windows host (replace FTPAddres with the actual FTP
Install the FTP server and configuration in Centos, and use the centosftp ServerInstall
yum install vsftpdStart/restart/close
/sbin/service vsftpd start/sbin/service vsftpd restart/sbin/service vsftpd stopConfiguration File
/etc/vsftpd/vsftpd.confUpload and download anonymously
Modify the configuration file to vsftpd. conf.
anonymous_enable=yesanon_upload_enable=yesanon_mkdir_write_enable=yesanon_umask=022C
errors when I first get started with Linux.
Question 2: How can I have the FTP server record user-related operations?
Sometimes, for the sake of FTP server security, we will allow the FTP server to record user-related operation
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