Databases

A List of Best Free SQL Injection Scanners and Tools

We’ve compiled a list of free SQL Injection Scanners we believe will be of a value to both web application developers and professional security auditors. Checking for SQL Injection vulnerabilities involves auditing your web applications and the best way to do it is by using automated SQL Injection Scanners. SQLbftools –…

Big Data and Hadoop: an explanation

Our world is a potential treasure trove for data scientists and analysts who can comb through massive amounts of data for new insights, research breakthroughs, undetected fraud or other yet-to-be-discovered purposes. But it also presents a problem for traditional relational databases and analytics tools, which were not built to handle…

Memcache: Installation and Usage on Ubuntu 12.10

About Memcache Memcache is a system that works to speed up virtual private servers by caching server information. The program allows you to allocate a specific amount of the server ram toward caching recently queried data for a certain amount of time. Once the data is requested again, memcache speeds up…

Mysql:Guide To The MySql Query Cache

MySQL“Query Cache” is quite helpful for MySQL Performance optimization tasks but there are number of things you need to know. First let me clarify what MySQL Query Cache is - I’ve seen number of people being confused, thinking MySQL Query Cache is the same as Oracle Query…

MySql: Setup Master Slave Replication in Ubuntu

About MySQL replication MySQL replication is a process that allows you to easily maintain multiple copies of a MySQL data by having them copied automatically from a master to a slave database. This can helpful for many reasons including facilating a backup for the data,a way to analyze it without using…

Redis: installation and usage on Ubuntu/Debian

About Redis Redis, developed in 2009, is a flexible, open-source, key value data store. Following in the footsteps of other NoSQL databases, such as Cassandra, CouchDB, and MongoDB, Redis allows the user to store vast amounts of data without the limits of a relational database. Additionally, it has also been compared…

Creating a Notepad app with indexedDB

indexedDB, which is new in HTML5, allows developers to persist data within the web browser. As a result your app runs both online and offline with powerful query facilities. indexedDB is different from traditional relational databases in that it is an objectStore instead of a collection of rows and columns. You just…

PHP-MongoDB Beginners Guide

Over the last year or so, there's been a small revolution taking place in the database world, with the advent of "schema-less" database systems like Apache CouchDB. These databases follow a different approach to data storage as compared to the traditional relational model, and they're quickly becoming popular with Web…

Import data from Mysql to MongoDb with EzSql class

This simple php class to demonstrate how to import data from a MySql database to a Mongodb with out complications.  // It uses the ezsql database class from Justin Vincent:  // http://justinvincent.com/ezsql include_once "ezsql/shared/ez_sql_core.php"; include_once "ezsql/mysql/ez_sql_mysql.php"; class mongodb_importer { public $user; public $pass; public $databse; public $server; public function import($table_name,$mongo_db) { $db = new ezSQL_mysql($this->user,$this->pass,$this->database,$this->server); …

Genghis - Mongo DB Manager in a single file

  For NoSQL fans, MongoDB is definitely the most popular solution with the simplicity and cross-platform support offered. In order to manage MongoDB databases easily, Genghis, a single-file, self-hosted and web-based solution is pretty handy. It can be installed either as a Ruby gem or as a standalone PHP script. Genghis is capable of managing any number of databases…

Programming

The HTML5 Quick Learning Guide

HTML5 syntax is compatible with both HTML4 and XHTML1. Want to close empty elements with a slash? Go for it.…

How to Create a Password Strength Indicator With jQuery

If you are building a system that allows the users to login in, then it is always a good idea…

Improving Page Performance with HTML5 Prefetch

As Wikipedia explains: Link prefetching is a proprietary syntax to give web browsers a hint about documents that it should pre-fetch…

21 PHP Libraries You Should Know About

The aim of the Standard PHP Library-or SPL is to provide a standard library of interfaces which allows developers to…

Servers

How to Set up a Fully Functional Mail Server on Ubuntu 16.04 with iRedMail

Setting up your own mail server from scratch on Linux is complex and tedious, until you meet iRedMail. This tutorial…

Install Java in Ubuntu 16.04

Java and the JVM (Java's virtual machine) are widely used and required for many kinds of software. This article will…

How to install and setup Varnish in Ubuntu 16.04

One of the problems with running a site with many users is that the constant requests for dynamic content can…

Install HHVM + Nginx on Ubuntu 14.04

  The LEMHH software stack is a group of software that can be used to serve dynamic web pages and web…

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