Top on the list of every IT operation team is ensuring that servers are secure from unauthorized users or malicious scripts. There are a number… Read More »How to Install and Use Fail2ban on RHEL 8 / CentOS 8
It’s always advised against running administrative-level commands as the root user. In fact, as a rule of thumb, it’s recommended to configure or create a… Read More »How to Create and Configure Sudo User on Arch Linux
In Linux, there always seems to be an ingenious way of getting things done. For any task, there’s always more than one command-line utility to… Read More »8 Stat Command Examples in Linux
When installing software on Ubuntu, sometimes you may be required to add third-party PPAs. Adding PPAs enables you to access software packages that have not… Read More »How to Fix ‘Repository does not have a release file’ Error in Ubuntu
Recently, I bumped into the error ‘Could not get lock /var/lib/dpkg/lock’. As a result, I could neither install any packages nor update the system. This… Read More »How to Solve ‘E: Could not get lock /var/lib/dpkg/lock’ Error in Ubuntu
Nmap stands for Network Mapper, it is a free and open-source network discovery and reconnaissance tool used for host discovery and collecting detailed information about… Read More »20 Awesome Nmap Command Examples in Linux
When it comes to opensource web servers, Apache and Nginx usually take the lion’s share in the hosting space and will often get the most… Read More »How to Install OpenLiteSpeed Web Server on CentOS 8/RHEL 8
Repetitive tasks are usually tedious and end up taking up a lot of your time and energy. Over time, multiple automation tools have been developed… Read More »How to Run Jenkins Server in Docker Container with Systemd
Echo command in Linux is one of the widely used command in day-to-day operations task. The echo command is a built-in command-line tool that prints… Read More »16 Echo Command Examples in Linux
In this guide, we will show you how to install and use Terraform on CentOS 8. Before we proceed further, what is Terraform? Created by… Read More »How to Install and Use Terraform on CentOS 8
In the previous guide, we demonstrated how you can install Cacti monitoring server on CentOS 8. This tutorial goes a step further and shows you… Read More »How to Add Remote Linux Host to Cacti for Monitoring
Cacti is a free and open source front-end network monitoring tool used to monitor and graph time-series metrics of various IT resources in your LAN.… Read More »How to Install Cacti Monitoring Tool on CentOS 8 / RHEL 8
