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How to Install Graylog with Elasticsearch on CentOS 8
This guide takes you through the installation of Graylog with Elasticsearch 7.x on CentOS 8. Graylog is an opensource log management solution that was founded in 2009 for capturing and centralizing...
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How to Run Jenkins Server in Docker Container with Systemd
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 to help alleviate the hassle of executing repetitive...
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How to Install OpenLiteSpeed Web Server on CentOS 8/RHEL 8
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 attention. But those aren’t the only opensource web servers in...
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How to Configure NGINX as TCP/UDP Load Balancer in Linux
As we know NGINX is one of the highly rated open source web server but it can also be used as TCP and UDP load balancer. One of the main benefits of using nginx as load balancer over the HAProxy is...
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How to Solve ‘E: Could not get lock /var/lib/dpkg/lock’ 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 error is also closely related to the ‘Could not...
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How to Setup Highly Available NGINX with KeepAlived in Linux
As we know NGINX is a highly rated web server which can also be used as reverse proxy, load balancer and HTTP cache. In this article, we will demonstrate how to setup highly available (HA) NGINX web...
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How to Replace Strings and Lines with Ansible
Ansible provide multiple ways that you can use to replace a string, an entire line or words that match a certain pattern. There are two modules that you can use to achieve this: the replace module and...
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How to Install Cockpit Web Console on Debian 10
Cockpit is free and open-source remote server management web console. Using cockpit web console one can do almost all day to day administrative tasks without login in server’s cli. Apart from...
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How to Install Minikube on Debian 10 (Buster)
If you are looking for an easy and cost-effective way of getting started with Kubernetes, then Minikube is your go to resource. So what is Minikube? Minikube is a free and opensource Kubernetes...
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How to Install PHP 8 on CentOS 8 / RHEL 8
Hello Geeks, recently PHP 8 has been released officially. It is a new major version and comes with lot of new improvements and features. In this article, we will demonstrate on how to install latest...
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How to Install PHP 8 on Debian 10
Recently stable version of PHP 8 has been released. This version comes with lot of advance features and improvements. In this guide, we will demonstrate on how to install PHP 8 on a Debian 10 system...
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How to Boot Arch Linux in Single User Mode / Rescue Mode
Booting any Linux distribution into single user mode (or rescue mode) is one of the important troubleshooting methods that every Linux geek should know. In this guide we will demonstrate how to boot...
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Monitor API Call and User Activity in AWS Using CloudTrail
CloudTrail is a service that is used to track user activity and API usage in AWS cloud. It enables auditing and governance of the AWS account. With it, you can monitor what is happening in your AWS...
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How to Create and Configure Sudo User on Arch Linux
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 sudo user on any Linux server that you intend...
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How to Install and Use Helm in Kubernetes
Deploying applications on a Kubernetes cluster can be a complex affair. It often requires users to create various YAML manifest files to create pods, service and replicasets. Helm is an opensource...
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How to Launch AWS EC2 Instance Using Terraform
Terraform is an open source ‘infrastructure as code’ command line tool used to manage infrastructure in the cloud. With terraform you define declarative configuration file called HashiCorp...
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How to Install GitLab on Debian 10 (Buster)
GitLab is a free and opensource front-end Git repository that features a Wiki and an issue tracking feature. It allows you to host Git repositories on your own server and setup DevOps platform. In this...
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How to Install and Use Fail2ban on RHEL 8 / CentOS 8
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 of solutions that you can apply to ward off attacks and...
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How to Setup Local APT Repository Server on Ubuntu 20.04
One of the reasons why you may consider setting up a local apt repository server is to minimize the bandwidth required if you have multiple instances of Ubuntu to update. Take for instance a situation...
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How to Install NFS Server on Debian 10 (Buster)
NFS (Network File system) is a client-server file system protocol which allows multiple system or user to access the same shared folder or file. The latest is NFS version 4. The shared file will be...
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