Tecmint

Experience shows that you can never be too paranoid about system backups. When it comes to protecting and preserving precious data, it is best to go the extra mile and make sure you can

SSHGuard is an open-source daemon that shields hosts from brute-force attacks. It accomplishes this through monitoring and aggregation of system logs, detecting attacks, and blocking attackers using one of the Linux firewall backends: iptables,

Frankly speaking, I cannot recall the last time I used a PC with a CD/DVD drive. This is thanks to the ever-evolving tech industry which has seen optical disks replaced by USB drives and

Everyone knows that Linux systems come with root user access and by default, root access is enabled for the outside world. For security reasons, it’s not a good idea to have ssh root access

LXD is described as the next-generation container and virtual machine manager that offers an immersive for Linux systems running inside containers or as virtual machines. It provides images for an inordinate number of Linux

Lighttpd is an open-source, high-performance, super-fast, flexible, and simple to configure secure web server that provides support for the broad technologies that include PHP, FastCGI, Auth, SSL, URL rewriting, reverse proxy, load balancing, and

GRand Unified Bootloader (GRUB) is a default bootloader in all Unix-like operating systems. As promised in our earlier article “How to reset a forgotten root password“, here we are going to review how to

Over the last decade, the open-source community has seen a steady shift to containerization as the preferred way of deploying applications thanks to the numerous benefits it offers such as portability, flexibility, increased security,

In this article we are going to review some of the useful and frequently used Linux or Unix commands for Linux System Administrators that are used in their daily life. This is not complete

In this article, we are going to review the wget utility which retrieves files from World Wide Web (WWW) using widely used protocols like HTTP, HTTPS, FTP, and FTPS. Wget is a free command-line

Data replication is the process of copying your data across multiple servers to improve data availability and enhance the reliability and performance of an application. In MySQL replication, data is copied from a database

In this article, we are going to review and see how we can schedule and run tasks in the background automatically at regular intervals using the Crontab command. Dealing with a frequent job manually

This is our ongoing series of Linux Commands and Linux Performance Monitoring, in this article, you will learn about Vmstat and Iostat commands, which are available on all major Unix-like (Linux/Unix/FreeBSD/Solaris) Operating Systems. vmstat

Computers are connected in a network to exchange information or resources with each other. Two or more computers are connected through network media called a computer network. There is a number of network devices

Samba is an open-source and most popular widely used program that enables end-users to access Linux shared directory from any Windows machine on the same network. Samba is also named as a network file

This is our ongoing series of Linux commands and in this article, we are going to review lsof command with practical examples. lsof meaning ‘LiSt Open Files’ is used to find out which files

Sharing files is an essential part of server administration. It allows sharing of resources across the network which are needed by users to carry out their tasks. One of the widely used file-sharing software

In our previous article, we have explained nslookup command examples and usage, which is a networking command-line tool used for querying and getting information of DNS (Domain Name System). Here, in this article, we

nslookup is a command-line administrative tool for testing and troubleshooting DNS servers (Domain Name Server). It is used to query specific DNS resource records (RR) as well. Most operating systems come with a built-in

In this article, we will learn how to install, update, remove, find packages, manage packages and repositories on Linux systems using YUM (Yellowdog Updater Modified) tool developed by RedHat. The example commands shown in