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 get lock /var/lib/apt/lists/lock’ error. Here’s some sample output on Ubuntu 20.04. … Read more
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 that it can also … Read more
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 the market which offer great performance and impressive stability. OpenLiteSpeed … Read more
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 jobs. One such automation tool is Jenkins. Jenkins is an opensource automation … Read more
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 real-time logs from various devices in a network. It’s a perfect tool for analyzing … Read more
In this post, we cover how to install terraform on RHEL 9, Rocky Linux 9 or AlmaLinux 9. Before we proceed further, what is Terraform? Created by Hashicorp, Terraform is a free and opensource declarative coding tool that allows you to automate and manage your … Read more
It is always recommended to have private docker registry or repository in your Kubernetes cluster. Docker private registry allows the developers to push and pull their private container images. Once the application’s containers are pushed to private registry then developers can use the path of … Read more
In this article, we will acquire a knowledge of how-to setup the Jenkins on CentOS 8 or RHEL 8. We will also go through why there is a need of an additional tool for delivering a project. But before we start with all gun blazing … Read more
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 on Cacti. We are going to add remote Ubuntu 20.04 LTS … Read more
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 one of the high rated mail server that comes in open … Read more
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. In this article we will learn how to configure persistent volume … Read more
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 a days it is available for almost for all Linux distributions. … Read more
