How to Add Remote Linux Host to Cacti for Monitoring
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 how you can add and monitor remote Linux hosts...
Category: How To
How to Install Zimbra Mail Server on CentOS 8 / RHEL 8
Mail server is one of the important server for any organization as all the communication are done via emails. There are number free and enterprise mail servers available in the IT world. Zimbra is...
How to Configure NFS based Persistent Volume in Kubernetes
It is recommended to place pod’s data into some persistent volume so that data will be available even after pod termination. In Kubernetes (k8s), NFS based persistent volumes can be used inside the pods....
How to Install Cockpit Web Console on Ubuntu 20.04 Server
Cockpit is a free and open source web console tool for Linux administrators and used for day to day administrative and operations tasks. Initially Cockpit was only available for RHEL based distributions but now...
How to Install and Configure Jenkins on Ubuntu 20.04
Automation of tasks can be quite tricky especially where multiple developers are submitting code to a shared repository. Poorly executed automation processes can often lead to inconsistencies and delays. And this is where Jenkins...
How to Enforce Password Policies in Linux (Ubuntu / CentOS)
As much as Linux is considered a secure operating system, its security is just as good as the password strength of login users. Password policies exist to ensure that a strong password is set...
Top 7 Security Hardening Tips for CentOS 8 / RHEL 8 Server
Once you have installed your CentOS 8 / RHEL 8 server, securing it to prevent unauthorized access and intrusions comes second. As the adage goes , “Prevention is better than cure” so is prevention...
How to Setup Highly Available Kubernetes Cluster with Kubeadm
When we setup Kubernetes (k8s) cluster on-premises for production environment then it is recommended to deploy it in high availability. Here high availability means installing Kubernetes master or control plane in HA. In this...
How to Setup Kubernetes Cluster on Google Cloud Platform (GCP)
Popularly known as K8s or Kube, Kubernetes is an opensource orchestration platform that automates the deployment, scaling, and monitoring of containerized applications. In simple terms, Kubernetes allows users to efficiently manage clusters which are...
How to Harden and Secure NGINX Web Server in Linux
Nginx is arguably one of the most widely used free and opensource web server used in hosting high-traffic websites. It is well known for its stability, stellar-performance, low resource consumption, and lean configuration. Some...
How to Setup NGINX Ingress Controller in Kubernetes
Ingress is one of the important concepts in Kubernetes, which allows external users to access containerized application using FQDN (fully qualified domain name). Though Ingress is not enabled and installed by default in Kubernetes...
How to Use Jinja2 Template in Ansible Playbook
Jinja2 is a powerful and easy to use python-based templating engine that comes in handy in an IT environment with multiple servers where configurations vary every other time. Creating static configuration files for each...
