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Linux

Linux Performance Monitoring Guide

ByRajesh Kumar October 12, 2022December 23, 2022

CPU

Memory

Network

Storage Device and Input I/O

Storage Capacity

Storage Controller

Linux Performance Checklist Commands & Tools

CPU Memory and I/O Interconnect

Linux Tutorials: mpstat commands examples

Linux Performance Observability Tools – Sar

Linux Performance Observability Tools

Linux Tutorials: vmstat commands examples

Linux Tutorials: iostat commands examples

Rajesh Kumar

I’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market tips at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow , and SEO strategies at Wizbrand.

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Shell Script

Linux Tutorials: ftp commands examples
ByRajesh Kumar December 8, 2017April 24, 2022

rajeshkumar created the topic: FTP commands for Linux / Unix How to Login – ftp rajesh-servers Basic Commands help or ? Displays a list of all FTP commands. quit Quits the program. ! [command] Executes a shell command from within the FTP program. Directory Commands cd [directory] Changes to the specified directory on the remote…

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Chef | Operating Systems

How to install chefDK in RHEL, Ubantu, Mac and Windows?
ByRajesh Kumar October 27, 2015December 17, 2017

How to install chefDK in RHEL, Ubantu, Mac and Windows? How to install chefDK in RHEL Step 1: Download checfdk from https://downloads.chef.io/chef-dk/ > wget https://opscode-omnibus-packages.s3.amazonaws.com/el/6/x86_64/chefdk-0.9.0-1.el6.x86_64.rpm or > curl -o chefdk-0.9.0-1.el6.x86_64.rpm https://opscode-omnibus-packages.s3.amazonaws.com/el/6/x86_64/chefdk-0.9.0-1.el6.x86_64.rpm > chmod 755 chefdk-0.9.0-1.el6.x86_64.rpm Step 2: Install chef dk > rpm -ivh chefdk-0.9.0-1.el6.x86_64.rpm Step 3: Confirm your installation. > which chef > chef -v…

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Ansible

Ansible Tower Install and Setup Quick Guide
ByRajesh Kumar August 7, 2025February 21, 2026

To install Red Hat Ansible Tower 3.8.6 (using ansible-tower-setup-3.8.6-2.tar.gz), your environment must meet a set of hardware, software, and system prerequisites. Below are the summarized requirements specific to this Tower version and its installer bundle: Hardware Requirements Supported Operating Systems Software Prerequisites System and Access Requirements Other Requirements Follwoing ports should be not used As the root user,…

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IDEs and Editor

Best & Most Popular 5 Code Editors for Python programming
ByVikas Das March 17, 2022December 23, 2022

History of Python Python is a high-level, interpreted, interactive and object-oriented scripting language. Python is designed to be highly readable. Python consistently ranks as one of the most popular programming languages. Python is derived from many other languages, including ABC, Modula-3, C, C++, Algol-68, Smalltalk, Unix shell, and other scripting languages. Python laid its foundation…

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Kubernetes

Kubernetes supports Windows containers
ByRajesh Kumar August 28, 2019November 16, 2021

With the release of Kubernetes v1.14, Windows Server node support has officially graduated from beta to stable! This support enables developers and operators with Windows Server based applications to containerize them and benefit from the power of Kubernetes. Prior to this support, The v1.5 release of Kubernetes introduced alpha support for Windows Server based workers…

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Linux

Linux Tutorials: mpstat commands examples
ByRajesh Kumar October 12, 2022December 23, 2022

mpstat – Report processors related statistics. The mpstat command writes to standard output activities for each available processor, processor 0 being the first one. Global average activities among all processors are also reported. How to install mpstat? mpstat command output Understanding mpstat output CPU : Processor number. The keyword all statistics are calculated as averages among all…

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