What is an SFTP Server? How to set up SFTP Server on Linux/Unix? SFTP (SSH File Transfer Protocol) is also called Secure FTP. It is a method for uploading and downloading files over an encrypted connection between two computers. Unlike FTP and FTPS, it works differently. Since SFTP is built upon the SSH (Secure Shell) […]

In this article, we will demonstrate how to configure a Secure FTP server (vsftpd) using SSL/TLS encryption. Traditional FTP services are not very secure and vulnerable because the credentials are transmitted in clear text, which is prone to crackdowns and many types of attacks like brute force. For broader protection, follow our Linux server hardening […]

FTP stands for File Transfer Protocol, which relies on client/server technology. It is a software application that transfers files between systems. The FTP protocol was developed in the 1970s and is one of the most commonly used protocols to transfer data between computers over the Internet. To see how it compares to others, read our […]

FTP servers are commonly known to facilitate file transfers between clients and servers. Typically, ftp servers offer two types of access levels: Authenticated and Anonymous. The first method (Authenticated) requires a valid username and password in order to access the files and directories. The second method ( Anonymous) being anonymous, we can download files without […]

A brief introduction about Rocky Linux Rocky Linux is a Community-based Enterprise Operating System, officially released by Rocky Enterprise Software Foundation (RESF) which is a free support platform with a complete binary-compatible release using the Red Hat Enterprise Linux (RHEL) operating system source code. The advantage of Rocky Linux is that it is completely free […]

In this article, we will learn how to monitor running processes on Linux. For a full overview, see our Linux process management cheat sheet. The Linux OS offers several commands that can be used to monitor a running process, but for checking dynamic real-time processes, we can use a command called 'TOP. This tool enables […]

In this article, we will learn how to use sed command in linux with 12 practical examples. The sed command is a powerful and useful text-processing tool in Unix / Linux for editing the content (files) line by line, including inserts, appends, changes, and deletes. Furthermore, it supports regular expressions, so it can match complex […]

The "cd" (change directory) command in Linux/Unix is pretty simple. It is one of the standard routine commands for every Linux user. It permits you to switch directories from one to another via Terminal. The cd command works based on the absolute path and relative path. Note: If you are a newbie or Windows user, […]

Managing and administering Linux Servers is a daunting task for all System Administrators. Needs essential hands-on experience in the command line/ CUI. However, many significant projects are coming up to handle Linux Administration tasks via the web console. It helps the new system admins, DevOps, and Developers to handle the system administration task easier. In […]

DNF stands for Dandified YUM, it is a completely updated version of YUM Package Manager. It was originally introduced on Fedora 18, and has now become the default package manager on Fedora 22, RHEL, and CentOS-8 to handle the RPM package management. DNF improves the deficiencies of YUM, including poor performance, high memory usage, and […]

A brief introduction about CentOS CentOS is a Community-based Enterprise Operating System, with a free support platform which uses the source code of Red Hat Enterprises Linux (RHEL) distribution. The advantage of using CentOS is that it is completely free to install on any 64-bit x86 system. Most of the Web Hosting companies are using […]

Sudo is the default utility on Unix-Linux systems, which is known as SuperUserDo. The Linux system forbids normal users from executing administrative commands. However, we can use this mechanism to allow regular users to run any application or command as a root user or to grant specific  commands to specific users. In order to run […]

YUM stands for Yellowdog Updater Modified, which is an RPM (RedHat Package Manager) based package management tool for Linux Systems. Yum was introduced in RHEL version 5.10 onward and its deprecated 'up2date' command. Yum, command helps all Users and System Administrators to search for information about packages and then install, update, and remove all rpm […]

SSH stands for Secure Shell, one of the well-known service protocols used to execute an operation to the remote administration over the internet. It provides a very secure passage between the designated computers. Once the connection is established, SSH will then provide encrypted sessions for all public (unsecured) networks in a client-server architecture. It was […]

In computing, a good Firewall system can prevent any unauthorized access to the network security systems. Businesses and organizations invest a good amount of money in their cybersecurity infrastructure, depending on how crucial their business is. In this article, we will see the fundamentals of a new firewall service introduced in CentOS 7 named FirewallD. […]

SSH is one of the main key services in Linux/Unix based systems. SSH represents Secure Socket Shell. SSH protocol is used to access the remote server/system with an encrypted method of login using the default TCP/IP port 22 or a custom based port number. This service is mainly used by System and Network Administrators to […]