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What is an FTP Server in Linux and How to Set it Up?

What is an FTP Server in Linux and How to Set it Up

FTP or File Transfer Protocol is a standard protocol used for transferring files between servers and clients on a network. In Linux, an FTP server allows users to upload and download files securely from remote locations. This article will explain what an FTP server is, how it works, and how to set up an FTP server on Linux.

What is an FTP Server?

An FTP server is a program that runs on a server computer and allows clients to connect to it and transfer files over the network. The server listens on a designated port for incoming FTP connections and uses authentication to control access to files and directories. FTP is a widely used protocol for file transfer and is supported by most operating systems and network devices.

Setting up an FTP Server in Linux:

Setting up an FTP server in Linux is relatively straightforward, and there are several open-source FTP servers available that you can use. In this tutorial, we will be using vsftpd (Very Secure FTP Daemon), a popular FTP server for Linux.

Step 1: Installing vsftpd

The first step is to install the vsftpd package on your Linux machine. You can use the following command to install vsftpd:

sudo apt-get install vsftpd

Step 2: Configuring vsftpd

After installing vsftpd, you need to configure it to allow FTP connections. The main configuration file for vsftpd is located at /etc/vsftpd.conf. You can open this file with a text editor and make the following changes:

anonymous_enable=NO
local_enable=YES
write_enable=YES
local_umask=022
dirmessage_enable=YES
use_localtime=YES
xferlog_enable=YES
connect_from_port_20=YES
chroot_local_user=YES
secure_chroot_dir=/var/run/vsftpd/empty
pam_service_name=vsftpd

These settings will disable anonymous FTP access, enable local user access, allow users to write files, and log all file transfers.

Step 3: Starting vsftpd

After configuring vsftpd, you can start the FTP server by running the following command:

sudo service vsftpd start

Step 4: Testing FTP Connections

Once the FTP server is running, you can test it by connecting to it using an FTP client such as FileZilla. To connect, you will need to enter the IP address of your Linux machine, your username, and your password.

More Examples:

You can also create virtual users with different directories and permissions by creating a new file under /etc/vsftpd.userlist with the following content:

user1
user2

Then, add the following lines to /etc/vsftpd.conf:

userlist_enable=YES
userlist_file=/etc/vsftpd.userlist
userlist_deny=NO

This will allow users in the vsftpd.userlist file to log in and restrict access to other users.

Setting up an FTP server in Linux is a straightforward process that requires a few configuration changes and a running FTP server program. Once set up, an FTP server can be used to securely transfer files over a network. We hope this article has helped you understand what an FTP server is and how to set it up in Linux.

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  • That's it for this post. Keep practicing and have fun. Leave your comments if any.

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