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Overview of vsftpd

Vsftpd is the abbreviation of "very secure FTP daemon", and security is one of its biggest features. Vsftpd is the name of a server running on a UNIX operating system. It can run on systems such as Linux, BSD, Solaris, HP-UNIX and so on. It is a completely free, open source ftp server software that supports many features that other FTP servers do not support.

Features very high security requirements, bandwidth restrictions, good scalability, can create virtual users, support IPv6, high speed, compact and light, safe and easy to use. The difference between ftp, sftp, vsftp and vsftpd

Ftp is the abbreviation of File Transfer Protocol, file transfer protocol, a set of standard protocols for file transfer over the network, using client / server mode. It belongs to the application layer of the network transport protocol.

Sftp is the abbreviation of SSH File Transfer Protocol, secure file transfer protocol.

Vsftp is a ftp server software used on Unix-like systems based on GPL. Its full name is Very Secure FTP. From this name, we can see that the original intention of the programmer is the security of the code.

Vsftpd is the abbreviation of very secure FTP daemon, and security is one of its biggest features. Vsftpd is the name of a server running on a UNIX operating system. It can run on systems such as Linux, BSD, Solaris, HP-UNIX and so on. It is a completely free, open source ftp server software. First, anonymous users log in to ftp (file in / var/ftp) 1 Install the vsftpd service [root@localhost ~] # yum install vsftpd-y # # installation service [root@localhost] # cd / etc/vsftpd/ # # this directory is the configuration file directory [root@localhost vsftpd] # lsftpusers user_list vsftpd.conf vsftpd_conf_ migrate.sh [root @ localhost vsftpd] # systemctl start vsftpd # # enable the vsftpd service [root@localhost vsftpd] # systemctl stop firewalld.service # # close the firewall [root@localhost vsftpd] # setenforce 0 # # turn off the enhanced function [root@localhost vsftpd] # ls / var/ftp/ # # switch to pub[ root @ localhost vsftpd] # echo "this is test" > / var/ftp/test.txt # # to add a text file 2 under the ftp directory Use the test machine cmd to access the vsftpd service (cmd connection ftp) and download the file C:\ Users\ xy007 > ftp 192.168.13.140 # # access the ftp service to connect to 192.168.13.140. 220 (vsFTPd 3.0.2) 200 Always in UTF8 mode. User (192.168.13.140: (none)): ftp # # Anonymous access 331 Please specify the password. Password: # # password No return Login successful.ftp > pwd # # View the current path 257 "/" # the root directory of the ftp service ftp > ls-a # # View the contents of the directory 200 PORT command successful. File in Consider using PASV.150 Here comes the directory listing....pubtest.txt # # server: received 25 bytes and used 25000.00 kilobytes per second in 0.00 seconds. Ftp > get test.txt # # download files locally (download to whichever disk is accessed, you can switch disks to download e:) 200 PORT command successful. Consider using PASV.150 Opening BINARY mode data connection for test.txt (13 bytes) .226 Transfer complete.ftp: received 13 bytes and took 13000.00 kilobytes per second in 0.00 seconds. Ftp > put test1.txt # # create a test1.txt on disk C and upload it to Linux for 200 PORT command successful. Consider using PASV.550 Permission denied. # # permission is restricted at this time

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