Learn the trending tools, troubleshooting guides, and how-to to become a better Sysadmin. You’ll find articles covering Linux, Windows, Docker, Kubernetes, Ansible, Web & Application servers, and many more.
Total 158 articles.
tcpdump is an amazing command-line tool for network sniffing. It is an industry-standard for capturing and analyzing TCP/IP packets. The tcpdump tool can be of great help when resolving networking issues. The packets can be saved to a file and later analyzed. It is a good idea to run this tool occasionally to keep a…
Developers love to write pieces of code that look like artwork and perform beautifully and flawlessly — at least in their own development environment. But eventually, they have to integrate that artwork with other pieces of art, written by other coders. And the result may not be as beautiful. If only the integration part could…
Sharding is a process of splitting up the large scale of data sets into a chunk of smaller data sets across multiple MongoDB instances in a distributed environment. What is Sharding? MongoDB sharding provides us scalable solution to store a large amount of data among the number of servers rather than storing on a single…
Let’s talk about the thread dump, and how to analyze it. We will also discuss how it helps to pinpoint the issues and some of the analyzer you can use. What is Thread? A process is a computer program which is loaded into the computer’s memory and is under execution. It can be executed by a…
Are you confused about LAMP, LEMP, MEAN, XAMPP, WAMP, and AMPPS stack terminology? Let’s find out about them! LAMP LAMP is an acronym for Linux, Apache, MySQL, and PHP. Each of these components is open source and free to use, which has helped contribute to their popularity. The lamp stack is probably the most common…
Prometheus is an open-source, metrics-based monitoring system. It collects data from services and hosts by sending HTTP requests on metrics endpoints. It then stores the results in a time-series database and makes it available for analysis and alerting. Why monitor? Enables alerts when things go wrong, preferably before they go wrong. So that somebody can…
A step-by-step Jenkins installation guide. In this article, we will learn how to install Jenkins on the following operating systems. Windows CentOS Ubuntu For all the above operating systems, Jenkins installation steps slightly vary, but configuration steps are the same. If you are looking to learn Jenkins then check out this online course to become…
Love Grafana for server metrics monitoring? You’ll love Blackbox Exporter for website monitoring too! In this tutorial, you will learn to install Blackbox Exporter on CentOS/RHEL and understand how to use it with Prometheus and Grafana to monitor website performance and uptime. Prerequisites Prometheus and Grafana must be pre-installed. Follow this article to install Prometheus…
In this article, you will learn how to monitor the global performance of a website with Grafana and worldPing. Features of worldPing: Tests the performance of your applications and uptime With the advanced alerting system, it notifies you about any issue. Gives comparative performance metrics of your competitors Easily shares interactive snapshots with anyone you…
As per the Accelerate State of DevOps 2019 report survey, 80% of the respondents said that the primary application or service they supported was hosted on some kind of cloud platform. 50% of the respondents said their primary application was hosted on the public cloud. Why Infrastructure as Code? Traditionally, if we look back when…
