Single-UserMode-CentOS8-RHEL8

How to Boot CentOS 8 / RHEL 8 Server in Single User Mode

For day to day operations tasks, sometimes Linux geeks have to boot Linux server in single user mode for recovering the root password, repairing file system errors, fixing incorrect entry of fstab and disabling or enabling systemctl services. Single user mode is the maintenance or … Read more

htop-monitor-linux-process

How to Use htop Command to Monitor Linux System Processes

As a Linux user, understanding and managing processes is essential for optimizing system performance and troubleshooting potential issues. While the built-in top command provides a basic overview of running processes, htop takes process monitoring to the next level with its user-friendly interface and powerful features. … Read more

Install-Ansible-AWX-CentOS8

How to Install Ansible AWX with Docker-Compose on CentOS 8

Red Hat has provided two GUI tools for centralized management of remote nodes using Ansible. Ansible Tower AWX Ansible Tower is a web-based interface and REST API endpoint for Ansible. It provides centralized logging and auditing, role-based access control and push-button deployment. AWX is an … Read more

Install-Docker-CE-CentOS8

How to Install Docker CE on CentOS 8 / RHEL 8

Docker is a daemon-based container engine which allows us to deploy applications inside containers. With the release of RHEL 8 and CentOS 8, docker package has been removed from their default package repositories, docker has been replaced with podman and buildah. If are comfortable with … Read more

VirtualBox-CentOS8

How to Install VirtualBox 6.0 on CentOS 8 / RHEL 8

VirtualBox is a free and open source virtualization tool which allows techies to run multiple virtual machines of different flavor at the same time. It is generally used at desktop level (Linux and Windows), it becomes very handy when someone try to explore the features … Read more

OpenStack-VMs-Affinity-AntiAffinity-Policy

How to Create Affinity and Anti-Affinity Policy in OpenStack

In the organizations where the OpenStack is used aggressively, so in such organizations application and database teams can come up with requirement that their application and database instances are required to launch either on same compute nodes (hypervisor) or different compute nodes. So, this requirement … Read more

Schedule -tasks-in-Linux-using cron

How to Automate tasks in Linux using Crontab

Sometimes, you may have tasks that need to be performed on a regular basis or at certain predefined intervals. Such tasks include backing up databases, updating the system, performing periodic reboots and so on. Such tasks in linux are referred to as cron jobs (Crontab). … Read more

Linux-History-Command-Timestamp

How to Enable Timestamp in Linux History Command Output

If you’re a command-line enthusiast, you probably use the history command regularly to recall past commands. It’s a handy feature that allows you to review your actions, streamline your workflow, and even troubleshoot if needed. However, there’s a way to supercharge your history logs by … Read more