How to Install and Configure Nagios Server and Clients | Nagios Tutorial
Install and Configure Nagios Server and Clients Download the Nagios Server Source copy from https://www.nagios.com/products/nagios-xi/ You can also use the direct download links as below; > wget…
Steps to Perform SSH Login Without Password Using ssh-keygen and ssh-copy-id
Steps to Perform SSH Login Without Password Using ssh-keygen and ssh-copy-id Step 1: Generate the keys > ssh-keygen or > ssh-keygen -t rsa Step 2: Copy the…
Useful Web Development ToolKit
Bokeh Bokeh is a Python interactive visualization library that targets modern web browsers for presentation. Its goal is to provide elegant, concise construction of novel graphics in…
DevOps Course Training FAQs | Online | Classroom | scmGalaxy
scmGalaxy Training FAQ Can I attend a Demo Session? You can go through the sample class recording and it would give you a clear insight about how…
Top 5 git version control software in cloud
Cloud Based cloudforge Assembla github bitbucket beanstalk Gitlab Some of them can be hosted behind the firewall as well in your company premises. Gerrit Gitlab Github Rajesh…
How to attach the jenkins build log as part of the email body?
Way 1 – Put following lines as part of Default Content text box ${BUILD_LOG, maxLines=9999, escapeHtml=false} this works for free style projects Way 2 – If you…
Chef Code Analysis using Foodcritic | Foodcritic Tutorial
What is Foodcritic? Foodcritic is a static linting tool that analyzes all of the Ruby code that is authored in a cookbook against a number of rules,…
Jenkins Backup and Restore Process | Jenkins Tutorial
Jenkins Backup and Restore using ThinBackup Plugins OLD METHODS as follow: How Do I Backup Jenkins Jobs using Grunt? Backup Jenkins configuration to S3 bash-backup-script for jenkins‘…
Chef frequently used commands collection
To run single recipe using chef-solo > chef-solo -c /opt/chef/repo/config/solo.rb -o my_cookbook::recipe To run the single reciepe in same machine > chef-apply hello.rb To generate the cookbook…
DOT NET Build and Release Training | Build and Release DOTNET Course
About the Build and Release Dot Net Course This Training is specially designed for the engineer who wants to excel their career in Build and Release…
How to attach the jenkins build log as part of the email body?
Way 1 – Put following lines as part of Default Content text box ${BUILD_LOG, maxLines=9999, escapeHtml=false} this works for free style projects Way 2 – If you…
How to Resolve jenkins java.lang.outofmemoryerror permgen space issues?
Solution 1 In Windows: Go to environment variable and add following variables export JAVA_OPTS=”-XX:MaxPermSize=512m -Xms512m -Xmx1024m” export GRADLE_OPTS=”-XX:MaxPermSize=512m” export SONAR_RUNNER_OPTS=”-Xmx512m -XX:MaxPermSize=512m” In Linux: In my ~/.bash_profile file,…
Jenkins Troubleshooting Guide
Jenkins Troubleshooting Jenkins is one of the important CI tools which many organization used as part of their Build and DevOps infrasture. I am going to consolidate…
Chef Configuration Management Interview Questions and Answers Part – 1
Source – learn.chef.io What is a resource? Answer- A resource represents a piece of infrastructure and its desired state, such as a package that should be installed,…
Chef Configuration Management Interview Questions and Answers Part – 2
Source – learn.chef.io What is a resource? Answer- A resource represents a piece of infrastructure and its desired state, such as a package that should be installed,…
NAnt Training | NAnt Course | Online | Classroom
We provide job oriented training in the area of Configuration management, Build and Release Engineering. Candidates with engineering or software background and looking to either start or…
Bootstrap a Microsoft Windows node using Chef
Bootstrap a Microsoft Windows node, the “knife windows” plugin is required, More info about knife window tool, http://docs.chef.io/plugin_knife_windows.html knife bootstrap windows winrm uvo1eak9a5geec05f7z.vm.cld.sr –winrm-user administrator –winrm-password ‘Rx4m7W4PQu’…
Top Cloud computing and operating software
Top Cloud computing and operating software. OpenStack OpenStack is a free and open-source cloud-computing software platform.[2] Users primarily deploy it as an infrastructure-as-a-service (IaaS). The technology consists…
Best Cloud Computing and Operating Tools
Top Cloud computing and operating software. OpenStack OpenStack is a free and open-source cloud-computing software platform.[2] Users primarily deploy it as an infrastructure-as-a-service (IaaS). The technology consists…
Server configuration monitoring and diagnostics
ScriptRock’s GuardRail As DevOps gets more agile, infrastructure needs unit tests too. Enterprise startup ScriptRock offers cloud-hosted testing configuration tools to get you started. Rajesh KumarI’m a…
DevOps Tools Collections | Top DevOps Tools | DevOps Toolchain
Top 5 Build Management Tools Build management is process of collecting all the problems parts in a software release, performing all the automated tasks to compile, build…
Top 5 Configuration Management Tools
Top 5 Configuration Management Tools Puppet In computing, Puppet is an open-source configuration management utility. It runs on many Unix-like systems as well as on Microsoft Windows,…
Understanding the chef cookbook’s README file
Problems Area – Our infrastructure has many cookbooks that aim to be reusable, primarily through encapsulating behaviour in LWRPs. This led to an explosion of LWRPs and…
Understanding the chef cookbook’s metadata.rb and metadata.json file
What is Metadata in chef? In order to understand cookbooks without evaluating them every files, we generate metadata about cookbooks What is metadata.rb? Before unerstanding about metadata.json,…
Getting root password using Hydra command
Rajesh KumarI’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…
gsh – Run linux commands on many other linux server at once
gsh – Run linux commands on many other linux server at once Group Shell (also called gsh) is a remote shell multiplexor. It lets you control many…
DevOps Courses and Training | DevOps Training | Online | Classroom
About the DevOps Course DevOps integrates devlopers and operation teams in order to improve collobration and productivity by automation infrastrcure, automationg workflows and continously application performance. DevOps…
Shell Scripting (Bash) Training | Bash/Shell Scripting Course
Introduction Introduction Why Shell Scripting? Linux Internal What to Expect From This Course? Prerequisites Git fundamental Introduction of git Git setup Basic operations in git Github Summary…
MSBuild Training | MSBuild Course | Online | Classroom | India
MSBuild 4.0 Basics This module introduces MSBuild, including what it does, how it works, and how to use it.  What is MSBuild  Sample project files  Solutions…
QA Roles and Levels in Continuous Delivery Model | Software Testing
0 – Manual compilation, no unit tests, manual testing by QA Before we all recoil in horror it’s worth recalling the pure horror of how things used…