FTP Server

File Transfer Protocol (FTP)

           
                 FTP is a program that allows transferring the file between computers present in the network. It works on port number 20 and 21.

Configuration file:

1.                   /etc/vsftpd/vsftpd.conf                               (Main configuration file)

2.                   /etc/vsftpd/ftpusers                      (Deny user list file)

3.                   /etc/vsftpd/user_list                     (Allow user list file)

                Configure FTP Server:

# rpm –ivh --force vsftpd + <Tab>                    (For install FTP service forcefully)

# chkconfig --list vsftpd                                        (For check vsftpd configuration on run level)

# chkconfig vsftpd on                                            (For on vsftpd configuration on all run level)

# service vsftpd  restart                                        (For restart the vsftpd service)

# ps –ef | grep vsftpd                                            (For checking demon process run or not)

Note: Disable Firewall and SELinux in Firewall Setting.

Login on FTP Server: Open terminal in UNIX OS or open MS DOS in Windows OS and follow bellow instructions.

1. In UNIX OS:-

# ftp 192.168.1.3                                               (IP of FTP Server)

Name (192.168.1.3:root):                             (Enter user name)

Password:                                                           (Enter user password)

230 Login successful.

ftp>

Login as anonymous user:

# lftp 192.168.1.3                                             (IP of FTP Server)

lftp 192.168.1.3:~>                                          (There is not ask any password)

2. In Windows OS:-

C:\> ftp 192.168.1.3                                         (IP of FTP Server)

User (192.168.1.3:(none)):                           (Enter user name)

password:                                                           (Enter user password)

230 Login successful.

ftp>

Change FTP port number: To change FTP port number edit its main configuration file "vsftpd.conf" and find the line as "listen_port=21", Replace port number 21 with any desire available port number. If above line doesn't here, write this line in this file and save it.

# vi /etc/vsftpd/vsftpd.conf

 listen_port=210

:wq

# service vsftpd restart

            Check current FTP port number:

# netstat -lnp | grep ftp

tcp     0     0 0.0.0.0:210     0.0.0.0:*     LISTEN     1311/vsftpd

            Login on FTP server with different port number:

# ftp <ip_address> <port_number>

# ftp 192.168.1.3 210

                Allow a user to login through FTP server: Add a new line “userlist_deny=NO” in FTP main configuration file “/etc/vsftpd/vsftpd.conf” for allow all users of “user_list” file. Then add a user which you want to allow login through FTP server in “/etc/vsftpd/user_list” file.

# vim /etc/vsftpd.conf

                Go to bottom of this file and a new line.

userlist_deny=NO

:wq

# echo nilesh >> /etc/vsftpd/user_list  (Here nilesh is a user which allow to FTP Server)

                Deny a user to login through FTP server: Add the user which you want to deny login through FTP server in “/etc/vsftpd/ftpusers” file.

# echo rajesh >> /etc/vsftpd/ftpusers   (Here rajesh is a user which deny to FTP Server)