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Selenium Tutorial for Beginners

In this tutorial, we will be overviewing Selenium automation tool in detail; we will be exploring Selenium WebDriver and discussing about identifying elements on the different Browsers using methods such as XPath, ID, CSS Selector and others. Selenium has three components, Selenium IDE, Selenium WebDriver formally known as Selenium Remote Control (RC) and Selenium Grid. Lastly, we will be also ...

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Apache Tomcat Reverse Proxy Configuration Tutorial

In computer networks, a reverse proxy is a type of proxy server that retrieves resources on behalf of a client from one or more servers. These resources are then returned to the client as if they originated from the proxy server itself. A reverse proxy acts as an intermediary for its associated servers to be contacted by any client. Quite ...

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Apache Hadoop Nutch Tutorial

In this tutorial, we will go through and introduce another component of the Apache Hadoop ecosystem that is Apache Nutch. Apache Nutch is a Web crawler which takes advantage of the distributed Hadoop ecosystem for crawling data. 1. Introduction Apache Nutch is a production ready web crawler which relies on Apache Hadoop data structures and makes use of the distributed ...

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Apache Tomcat Generate Csr Tutorial

A public key infrastructure (PKI) is a set of roles, policies, and procedures needed to create, manage, distribute, use, store, and revoke digital certificates and manage public-key encryption. In Public Key Infrastructure (PKI) systems, a Certificate Signing Request also CSR or certification request is a message sent from an applicant to a Certificate Authority in order to apply for a ...

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Apache Tomcat Rewrite Rules Example

The rewrite valve implements URL rewrite functionality in a way that is very similar to mod_rewrite from Apache HTTP Server. uses a rule-based rewriting engine, based on a PCRE regular-expression parser, to rewrite requested URLs. URL rewriting is a technique called URL rewriting that can turn unsightly URLs into nice ones. It enables you to fill out your URLs with ...

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Selenium Keyboard Events Example

1. Introduction In this tutorial we will be discussing about the Advance User Interactions API. Using these APIs, we can perform actions on a web page similar to a user would interact on the user using keyboard and mouse. The Actions interface and Action classes are two modules of the API that needs to be implemented to make use of ...

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Apache Hadoop Knox Tutorial

In this tutorial, we will learn about Apache Knox. Knox provides the REST API Gateway for the Apache Hadoop Ecosystem. We will go through the basics of Apache Knox in the following sections. 1. Introduction Apache Knox is the open source project under Apache Software Foundation similar to most other Hadoop Ecosystem projects. It provides a REST API Gateway for ...

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Apache Tomcat Mod_jk Tutorial

The Apache Tomcat connector allows to use the Apache httpd server as a front-end for Apache Tomcat applications. With this configuration you can get some features like Clustering, Load Balancing, and enhanced Security, provided by the httpd server. The mod_jk connector is an Apache HTTPD module that allows HTTPD to communicate with Apache Tomcat instances over the AJP protocol. The ...

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Hadoop Hbase Maven Example

In this article, we will learn about using Maven for including Hbase in your Apache Hadoop related applications and how Maven makes it easy to write the Java Hbase applications with the repositories. 1. Introduction Hbase is the NoSql database available in the Hadoop Ecosystem. Like rest of the Hadoop Ecosystem Hbase is also open-source and is used when the ...

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