tag: DevOps

Network Prefixes Network prefixes are a fundamental concept in IP networking, particularly in the context of CIDR (Classless Inter-Domain Routing). They define the portion of an IP address that is used for network identification, as opposed to host identification within that network. A network prefix is a part of an IP address that indicates the network to which the IP address belongs. It is represented by a combination of an IP address and a subnet mask or prefix length....

Classless Inter-Domain Routing (CIDR) is more efficient than the older classful network design for several key reasons; 1. Flexible Subnetting and Address Allocation Classful Network Design: IP addresses were divided into fixed classes (A, B, C, D, E). Class A: 16 million addresses (8-bit network prefix). Class B: 65,536 addresses (16-bit network prefix). Class C: 256 addresses (24-bit network prefix). This fixed structure often led to significant wastage of IP addresses....

#Kubernetes #Helm #DevOps Helm Helm is the best way to find, share, and use software built for Kubernetes. It helps you manage Kubernetes applications and helps you define, install, and upgrade even the most complex Kubernetes application. Helm is a graduated project in the CNCF and is maintained by the Helm community. What is a helm chart? a Helm chart is a powerful tool that simplifies the deployment, management, and sharing of applications on Kubernetes by packaging all necessary resources and configurations into a single, reusable unit....

The relationship between nodes and pods In Kubernetes, the relationship between nodes and pods is central to how applications are deployed and managed. Understanding what nodes and pods are, individually, helps clarify their interaction. What are Pods? A pod is the smallest deployable unit in Kubernetes and serves as a wrapper for one or more containers. Each pod is designed to run a single instance of a given application or service....

These modern Linux tools might enhance your workflow fd is a simple and fast file search tool, enhancing the Unix find command. exa is a modern replacement for ls, enhancing file listing with better defaults. dog is a modern, feature-rich DNS client for the command-line. ncdu is a console disk usage analyzer for quick space management. bat is a cat clone with syntax highlighting and Git integration for the command-line. sd is a simple and intuitive find-and-replace CLI tool, aiming to improve upon sed....

Understanding DevOps: A Brief Overview DevOps, a compound of development (Dev) and operations (Ops), is a software development and delivery approach that emphasizes communication, collaboration, integration, and automation among software developers and IT operations teams. The goal of DevOps is to improve and speed up the delivery of software applications and services. By fostering a culture where building, testing, and releasing software can happen rapidly, frequently, and more reliably, DevOps has become a key practice in the software industry....