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plugin_interface.lib.php error sudo vim /usr/share/phpmyadmin/libraries/plugin_interface.lib.php if ($options != null && count($options) > 0) { if ($options != null && count((array)$options) > 0) { Secure PhpMyAdmin Login Interface 1. Change Default PhpMy...

1. Install and configure the necessary dependencies sudo apt-get updatesudo apt-get install -y curl openssh-server ca-certificates tzdata perl Next, install Postfix (or Sendmail) to send notification emails. If you want to use another solution to send emails...

A --- Delete old A Record and create New A record with your new domain on new hotels    zone B ---  Remove apache for server (EC2- Instance)Notes --- Before removing apache first take a backup of two path                 1-   /etc/apache/sites-available   ...

Node.js is a very powerful JavaScript-based platform built on Google Chrome's JavaScript V8 Engine. It is used to develop I/O intensive web applications like video streaming sites, single-page applications, and other web applications. Node.js is open source, c...

What is Node.js? Node.js is a server-side platform built on Google Chrome's JavaScript Engine (V8 Engine). Node.js was developed by Ryan Dahl in 2009 and its latest version is v0.10.36. The definition of Node.js as supplied by its official documentation is as...

Try it Option Online You really do not need to set up your own environment to start learning Node.js. Reason is very simple, we already have set up Node.js environment online, so that you can execute all the available examples online and learn through pract...

Before creating an actual "Hello, World!" application using Node.js, let us see the components of a Node.js application. A Node.js application consists of the following three important components − Import required modules − We use the require directive to...

REPL stands for Read Eval Print Loop and it represents a computer environment like a Windows console or Unix/Linux shell where a command is entered and the system responds with an output in an interactive mode. Node.js or Node comes bundled with a REPL environ...

Node Package Manager (NPM) provides two main functionalities − Online repositories for node.js packages/modules which are searchable on search.nodejs.org Command line utility to install Node.js packages, do version management and dependency managemen...

What is Callback? Callback is an asynchronous equivalent for a function. A callback function is called at the completion of a given task. Node makes heavy use of callbacks. All the APIs of Node are written in such a way that they support callbacks. For examp...

Node.js is a single-threaded application, but it can support concurrency via the concept of event and callbacks. Every API of Node.js is asynchronous and being single-threaded, they use async function calls to maintain concurrency. Node uses observer pattern. ...

Many objects in a Node emit events, for example, a net.Server emits an event each time a peer connects to it, an fs.readStream emits an event when the file is opened. All objects which emit events are the instances of events.EventEmitter. EventEmitter Class ...

Pure JavaScript is Unicode friendly, but it is not so for binary data. While dealing with TCP streams or the file system, it's necessary to handle octet streams. Node provides Buffer class which provides instances to store raw data similar to an array of integ...

What are Streams? Streams are objects that let you read data from a source or write data to a destination in continuous fashion. In Node.js, there are four types of streams − Readable − Stream which is used for read operation. Writable − Stream whic...

Node implements File I/O using simple wrappers around standard POSIX functions. The Node File System (fs) module can be imported using the following syntax − var fs = require("fs") Synchronous vs Asynchronous Every method in the fs module has synchronous ...

Node.js global objects are global in nature and they are available in all modules. We do not need to include these objects in our application, rather we can use them directly. These objects are modules, functions, strings and object itself as explained below. ...

There are several utility modules available in Node.js module library. These modules are very common and are frequently used while developing any Node based application. Sr.No. Module Name & Description 1 OS Module Provides basic operating-syste...

What is a Web Server? A Web Server is a software application which handles HTTP requests sent by the HTTP client, like web browsers, and returns web pages in response to the clients. Web servers usually deliver html documents along with images, style sheets, ...

Express Overview Express is a minimal and flexible Node.js web application framework that provides a robust set of features to develop web and mobile applications. It facilitates the rapid development of Node based Web applications. Following are some of the ...

What is REST architecture? REST stands for REpresentational State Transfer. REST is web standards based architecture and uses HTTP Protocol. It revolves around resource where every component is a resource and a resource is accessed by a common interface using...