List of Top 11 Application Server in 2021

  • IBM
  • Nginx
  • Apache Tomcat.
  • Oracle WebLogic.
  • Plesk.
  • IIS 7.5.
  • LiteSpeed Web Server.
  • vCenter Server.
  • Apache Server.
  • Wildfly.
  • Phusion Passenger.

What is Application Server?

  • A server specifically designed to run applications.
  • Includes both hardware and software that provide an environment for programs to run.

What is Application Server examples?

There is a huge number of application servers that are used today. Some of the examples are given below:

  • JBoss
  • Weblogic
  • Websphere
  • Glassfish
  • Apache Geronimo
  • Oracle OC4J
  • Sun GLassFish Enterprise Server

 What is the purpose of application server?

An application server enables a server to generate a dynamic, customized response to a client request. An application server is a Java™ Virtual Machine (JVM) that runs user applications. The application server collaborates with the web server to return a dynamic, customized response to a client request.

How does application server work?

Application server usually work in concert with a web server. In fact, Today’s app server usually have web servers built in.

Here is how the process works:

  • The user submits a request from a browser(e.g. Netscape, IE)
  • The web server receives the request from the browser and recognizes it as a special request for a servlet.

• This is done by configuring the web server to recognize certain url’s as servlet requests.

  • The web server passes the request to the application server.
  • The application server processes the request and returns a response to the web server. 
  • The web server passes the response to the browser.

What is difference between Web server and application server?

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What is DevOps and How its Different from AWS DevOps?

Introduction

Guys, today in this blog you will learn in detail about DevOps and AWS DevOps, so let’s know what is DevOps and AWS DevOps. DevOps is a term of the two words ‘development’ and ‘operations’. DevOps is not a technology, it is a combination of cultural, practices, and tools that increases an organization’s ability to deliver applications and services. As we know, AWS DevOps provides application developer teams with the means to efficiently implement continuous integration and continuous delivery (CI/CD). This enables them to securely store and version application source code, while automatically building, testing, and eventually deploying the application to either on-premises environments or to AWS.

What is DevOps?

DevOps is a software development methodology where the Development team & Operations teamwork as together. After adopting DevOps, it helps to increase the speed of an organization to deliver applications and services. And it can be defined as the alignment of development and IT operations with better communication and collaboration. And those who are DevOps engineers use many tools for the development & operations processes so that our life becomes easy. These popular DevOps tools are- Docker, Git, SVN, Maven, Jenkins, Selenium, Kubernetes, Puppet, Chef, SaltStack, Nagios, Splunk, etc.

Here are the some Benefits of DevOps:-

  • DevOps ideology encourages a completely new way of thinking and decision-making.
  • DevOps certified professionals are among the highest-paid in the IT industry.
  • The market demand is increasing rapidly with its increased implementation worldwide.
  • It ideology promotes increased collaboration and communication between the operation and development teams.
  • You learn to work in a team consisting of cross-functional team members—QA, developers, operation engineers, and business analysts.

What is AWS?

AWS stands for Amazon Web Services, It is a cloud infrastructure, is an extensive, emerging cloud platform offered by Amazon that contains a combination of IaaS, PaaS, and SaaS offerings. Also, AWS can provide organizational tools including database storage, computing power, and content delivery services. It can be used to store crucial data.

The below image gives you an idea about AWS certifications

Benefits after Grab AWS Certification:-

  • AWS certified professional is someone who can manage servers provided by amazon.
  • It is cloud storage is quite useful for organizations and it’s easily accessible too.
  • Design and deploy dynamic, scalable, highly available, and reliable cloud applications.
  • It is enables businesses to scale and grow with database storage, content delivery, compute power and other tools.

AWS Certified Developer Roles and Responsibilities:-

  1. Skills in write, correct and debug application code modules
  2. Knowledge of software development lifecycle for AWS cloud
  3. Ability to develop, deploy & debug AWS cloud applications
  4. Knowledge of software development lifecycle for AWS cloud
  5. Understanding of serverless applications and ability to write code for these applications.

What is AWS DevOps?

AWS DevOps is Amazon’s answer to implementing the DevOps philosophy using its cloud platform and dedicated tools and services. provides application developer teams with the means to efficiently implement continuous integration and continuous delivery (CI/CD). This enables them to securely store and version application source code, while automatically building, testing, and eventually deploying the application to either on-premises environments or to AWS.

Benefits of AWS DevOps:-

  • Develop, improve, and thoroughly document operational practices and procedures.
  • Develop and implement instrumentation for monitoring the health and availability of services including fault detection, alerting, triage, and recovery.
  • Work in conjunction with IT, engineering, and business groups to understand functionality, scalability, performance, security, and integration requirements.
  • Build solutions to problems that interrupt availability, performance, and stability in our systems, services, and products at scale.

Difference Between DevOps and AWS DevOps:-

DevOps is a software development methodology where the Development team & Operations team work as a together. After adopting DevOps, it helps to increase the speed of an organization to deliver applications and services. And it can be defined as the alignment of development and IT operations with better communication and collaboration. AWS DevOps is Amazon’s answer to implementing the DevOps philosophy using its cloud platform and dedicated tools and services. provides application developer teams with the means to efficiently implement continuous integration and continuous delivery (CI/CD).

DevOps Fundamental to Advanced Tutorial for Beginners

If you want to learn DevOps | Cloud and Containers Free Videos and Tutorials then Join scmGalaxy YouTube Channel

I hope this post will be very helpful for you!

Thank You

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What is DevOps and AZURE DEVOPS?

Introduction

Guys, today in this blog you will learn in detail about DevOps and Azure DevOps, so let’s know what is DevOps and Azure DevOps. DevOps is a term of the two words ‘development’ and ‘operations’. DevOps is not a technology, it is a combination of cultural, practices, and tools that increases an organization’s ability to deliver applications and services. Azure is one of the fast growing cloud computing platform. Microsoft Azure DevOps is built on multi-tier, scalable architecture. It is comprises a range of services covering the full development life-cycle.

What is DevOps?

DevOps is a software development methodology where the Development team & Operations team work as a together. After adopting DevOps, it helps to increase the speed of an organization to deliver applications and services. And it can be defined as the alignment of development and IT operations with better communication and collaboration. And those who are devops engineers use many tools for development & operations process so that our life becomes easy. Like these popular DevOps tools are:- Docker, Git, SVN, Maven, Jenkins, Selenium, Kubernetes, Puppet, Chef, SaltStack, Nagios, Splunk, etc.

How DevOps works in the Enterprise?

You can see through the image.

Works flow of DevOps

Below you can see works of DevOps by following each phase of the DevOps life cycle which includes continuous development, continuous integration, continuous testing, and continuous deployment.

Continuous Development – Plan application objectives and code the requirements

Continuous Testing – Verify the product for actual usage in a live environment

Continuous Integration – It Plan tests and build the product

Continuous Deployment – Ensures product is deployed with maximum accuracy

Continuous Monitoring – It Monitor the product output and find the problem areas

Here are the some Benefits of DevOps:-

  • DevOps ideology encourages a completely new way of thinking and decision-making.
  • DevOps certified professionals are among the highest-paid in the IT industry.
  • The market demand is increasing rapidly with its increased implementation worldwide.
  • It ideology promotes increased collaboration and communication between the operation and development teams.
  • You learn to work in a team consisting of cross-functional team members—QA, developers, operation engineers, and business analysts.

Here you see Salary of DevOps Engineer:-

According to payscale.com, the demand for DevOps is high but companies require individuals to have the correct skill sets. Additionally, the better the experience, the higher is the salary. The average devops salary in India, according to Payscale, is Rs 674,202 per year, inclusive of bonuses and profit-sharing.

Below you can get complete knowledge of Microsoft Azure and Azure DevOps by source of DevOpsSchool.com.

What is Microsoft Azure?

Now, lets know about Microsoft Azure, It is a cloud computing service created by Microsoft that is one of the leading cloud service providers, and day-by-day many organizations are opting for Azure to get the best technologies for efficient computations. Its use will help you to build, deploy, and manage applications through your globally owned network of data centers.

What is Azure DevOps?

Now, lets know about Azure DevOps, it is a mixture of the simplest of technology and therefore the application of best practices. We can say, It is the Next Big thing in IT Industries. Azure DevOps is a Software as a service (SaaS) platform from Microsoft that provides an end-to-end DevOps toolchain for developing and deploying software. Microsoft recently launched this as a result of they perceive that DevOps has become more and more vital to a team’s success. It’s concerning culture and an amendment within the manner we tend to do things, yet as our mental attitude. Azure DevOps captures over fifteen years of investment and learnings in providing tools to support software packages, development groups. more to the present.

How does Azure DevOps work?

In the easiest terms, Azure DevOps is the evolution of VSTS (Visual Studio Team Services). Azure DevOps works both public and private cloud configurations – the services include:

  • Azure Boards – A work tracking system with Kanban boards, dashboards, and reporting
  • Azure Pipelines – A CI/CD, testing, and deployment system that can connect to any Git repository
  • Azure Repos – A cloud-hosted private Git repository service
  • Azure Test Plans – A solution for tests and capturing data about defects
  • Azure Artifacts – A hosting facility for Maven, npm, and NuGet packages

Azure DevOps use cases include – 1. Planning 2. Developing 3. Delivery 4. Operations

How to become a Azure DevOps Certified Engineer and list of the various certifications:

If you want to become a Microsoft Azure DevOps Certified Engineer: then, you must earn at least one of the following: Microsoft Certified: Azure Administrator Associate, Microsoft Certified: Azure Developer Associate certification.

These are Best Microsoft Azure Certification:-

  • Microsoft AZ-900 Certification: Azure Fundamentals course
  • AZ-104 Azure Administrator Exam Certification course
  • Microsoft AZ-400 Azure DevOps Certification course
  • AZ-204 Developing Solutions
  • AZ – 303 Microsoft Azure Architect
  • AZ – 304 Microsoft Azure Architect Design
  • Microsoft AZ-500 Certification: Azure Security Technologies course

Below you can path of Azure Certification:-

Pre-Requisites for Microsoft Azure course

  • Basics of Networking
  • Basics of the MS Azure Platform
  • Basic concepts related to operating systems
  • Basic familiarity with infrastructure paradigms such as active directory and PowerShell

What is the Salary of Azure DevOps Engineer?

Here I am going to share with you the average salary of an Azure DevOps Engineer. If you are working at a product-based company, then the salary ranges start from ₹16L to ₹42L per year. And the average salary of an Azure DevOps Engineer working at a service-based company can range start from ₹5.5L to ₹23L per year.

These are some Popular Courses of Azure:-

What are the Difference Between DevOps and Azure DevOps?

DevOps is basically a culture and it is really hot at the moment and is revolutionizing the workplace. It is the bridge closing the gap between Development and Operations team and bringing them together. DevOps is achieved through tools, processes, and automation, but, even more than that, through a change in organizational culture.

Azure DevOps is a Software as a service (SaaS) platform from Microsoft that provides an end-to-end DevOps toolchain for developing and deploying software. It is a mixture of the simplest of technology and therefore the application of best practices. Azure DevOps works both public and private cloud configurations.

If you are planning to become an Master in Azure DevOps Engineer, and searching to the best institute for preparing for Azure certifications, then I would suggest you one of the best Institutes that is DevOpsSchool.com. This institute has 10 to 15+ years of experienced trainers who providing you quality training with industries requirement.

I am going to share with you some videos, then you can get some overview of DevOps and Start to learn Azure DevOps course.

DevOps Fundamental to Advanced Tutorial for Beginners

Microsoft Azure Fundamental Tutorial | AZ-900 Certification

Why Choose DevOpsSchool | Reviews | Testimonials | Learner’s Feedback

I hope this tutorial is very helpful for you!

Keep learning! Best of Luck

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Dashboard Solutions for CI/CD – DevOps

A dashboard is an interactive tool that aggregates all your data into a single view. Analytics from multiple sources are contained in one place, making it easier to assess your DevOps progress. CI/CD has many features which need to be incorporated in Dashboad such a data from Version Control tools, Build Matrix, Code Analysis Matrix, Code Coverage Matrix etc.  Having Centralized Dashboard help team and project to get the status of the activities in less time and increase productivity and less time in decision making.

OpenStack Dashboard
The OpenStack dashboard provides administrators and users a graphical interface to access, provision and automate cloud-based resources. The extensible design makes it easy to plug in and expose third party products and services, such as billing, monitoring and additional management tools. The dashboard is also brandable for service providers and other commercial vendors who want to make use of it.

The dashboard is just one way to interact with OpenStack resources. Developers can automate access or build tools to manage their resources using the native OpenStack API or the EC2 compatibility API.
Dashboard Capabilities

The dashboard is an extensible web app that allows cloud administrators and users to control their compute, storage and networking resources.
As a cloud administrator, the dashboard provides an overall view of the size and state of your cloud. You can create users and projects, assign users to projects and set limits on the resources for those projects.
The dashboard provides users a self-service portal to provision their own resources within the limits set by administrators.

Jenkins Dashboard View Plugins

This plugin contributes a new view implementation that provides a dashboard / portal-like view for Jenkins.You can add different portlets to your new dashboard with all sort of content in it.

Sonar Dashboard
Sonar dashboards are mostly based on PUSH mechanism, this is a step within maven which will push the details/results to the Sonar dashboard. This is best suited for build + unit test jobs.

  1. Sonar is more of an engineer’s dashboard.
  2. The level of granular details it provides is very useful for the engineer.
  3. Code coverage, Complexity etc which it reports are useful from the engineering point of view.
  4. Over all this gets good amount of data from once jenkins job is completed and pushed the data to sonar.
  5. The area where sonar lacks is that its not a useful tool for non-technical or management level crowd. The busy page with too much information will easily confuse a person who wants to look at the overall high level CI status.
  6. We need to have some level of instrumentation within our maven projects(POM) to get this integration going. At a high level we need to add a sonar:sonar goal from maven to push the results from jenkins->maven.
  7. This is more of a PUSH mechanism.

Configuration Manager 2007 Dashboard
The Microsoft System Center Configuration Manager 2007 Dashboard lets customers track application and operating system deployments, security updates, the health status of computers, and IT compliance with key regulations—with an easy to use, customizable Web interface. Because the Dashboard is built on Windows® SharePoint® Services, IT staff can access information without using the Configuration Manager console. The Dashboard is a free Solution Accelerator, and fully supported by Microsoft.

Key Benefits

Benefits of the dashboard include:

  1. Actionable information out of the box. The dashboard comes with valuable, built-in datasets that IT managers can access without using the Configuration Manager console.
  2. Centralized, near-real-time access to key information. The graphical dashboard lets customers view any Configuration Manager data set in near-real time—without leaving their desk.
  3. Easy to build and configure. The dashboard’s wizard-based tools let customers easily create new dashboards in minutes.
  4. Easy to customize. The dashboard can easily be customized to meet the needs of different departments and other groups. Any data set in the Configuration Manager database can be presented on the dashboard, in chart, gauge, and table formats.
  5. Flexible & interactive. Users can easily filter data and create ad hoc, custom views. Filters allow users to quickly drill down from high-level to more specific data.
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Connection failed: 404 – Not Found

scmuser created the topic: standalone-pom: Connection failed: 404 – Not Found

Error –

[ERROR] Failed to execute goal org.sonatype.plugins:nexus-m2settings-maven-plugin:1.6.6:download (default-cli) on projec
t standalone-pom: Connection failed: 404 - Not Found -> [Help 1]
[ERROR]

Solution –

Works as expected (only pro 2.7+) allowed.
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Nexus – Deployment failed: repository element was not specified in the

scmuser created the topic: Nexus – Deployment failed: repository element was not specified in the

I am facing following error…

Downloaded: repo.maven.apache.org/maven2/org/codehau...exus-utils-1.5.6.jar (245 KB a
t 573.0 KB/sec)
[INFO]
[INFO] BUILD FAILURE
[INFO]
[INFO] Total time: 9.923 s
[INFO] Finished at: 2015-09-05T16:32:03+05:30
[INFO] Final Memory: 21M/205M
[INFO]
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project my-ma
ven: Deployment failed: repository element was not specified in the POM inside distributionManagement element or in -Dal
tDeploymentRepository=id::layout::url parameter -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] cwiki.apache.org/confluence/display/MAVE...joExecutionException
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Nexus – Failed to deploy artifacts: Could not transfer artifact

scmuser created the topic: Nexus – Failed to deploy artifacts: Could not transfer artifact

[INFO]
[INFO] BUILD FAILURE
[INFO]
[INFO] Total time: 6.457 s
[INFO] Finished at: 2015-09-05T16:44:40+05:30
[INFO] Final Memory: 11M/165M
[INFO]
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project my-maven: Failed to deploy artifacts: Could not transfer artifact com.scmgalaxy.mavensample:my-maven:jar:3.0 from/to deployment ( uvo193bnk02rz2cuv74.vm.cld.sr:8081/nexus...positories/releases/ ): Failed to transfer file: uvo193bnk02rz2cuv74.vm.cld.sr:8081/nexus...3.0/my-maven-3.0.jar . Return code is: 401, ReasonPhrase: Unauthorized. -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] cwiki.apache.org/confluence/display/MAVE...joExecutionException
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Difference between Jfrog and Nexus

pasupuleti2 created the topic: difference between Jfrog and Nexus

What are the difference between Jfrog and Nexus?
Which Artifact is good to Jenkins, C#, .Net, C and Java technologies?

-Saritha

rajeshkumar replied the topic: difference between Jfrog and Nexus

I guess you question was difference between Nexus and Artifactory. Jfrog is the company name who developed the software called Artifactory.

Please check it out google to find the diff between Nexus n Artifcatory
www.jfrog.com/blog/artifactory-vs-nexus-integration-matrix/
Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

Tagged :

How to generate the pre populated information in metadata.rb in chef?

rajeshkumar created the topic: How to generate the pre populated information in metadata.rb in chef?

How to generate the pre populated information in metadata.rb in chef

You can configure the values in my knife.rb:

cookbookcopyright “Rajesh Kumar”
cookbooklicense “apachev2”
cookbook_email “rajesh@scmgalaxy.com”

Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

Tagged :

Error: Could not find cookbook cookbooks_test in your cookbook path, sk

rajeshkumar created the topic: ERROR: Could not find cookbook cookbooks_test in your cookbook path, sk

Error while uploading the cookbooks….

> knife cookbook upload cookbooks_test
ERROR: Could not find cookbook cookbooks_test in your cookbook path, skipping it
ERROR: Failed to upload 1 cookbook.

Solution:

You can pass path of the cookbooks via commend line using…

knife cookbook upload cookbooks_test -o /path/to/cookbook

Also, you can set the path in .chef/knife.rb. If .chef/knife.rb is missing, you can following commands…

knife configure --initial

But if you install the startter kit from manage.chef.io, you just need to replace all the files including .knife.rb

if you cookbooks files many places then you can set your .knife.rb like as below;

cookbook_path [ '.', '..', './cookbooks', '~/git/chef' ]

If you are still getting this error, make sure the metadata.rb has same name which you using to upload the cookbooks.
Regards,
Rajesh Kumar
Twitt me @ twitter.com/RajeshKumarIn

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