In this tutorial, we will show you how to enable a slow query log for MySQL on Linux systems. MySQL has built-in functionality that allows you to log SQL queries to a file, You can enable the full SQL query logs to a file or only slow running queries log. It is easy for us to troubleshoot/ debug the SQL statement if SQL queries log enable, The slow query log is used to find queries that take a l...
In this tutorial, we will show you how to backup and restore the MySQL database using Command-Line. For those of you who didn’t know, MySQL is an open-source database developed by Oracle whereas MariaDB is a fork of it that works similarly and uses the same command line as MySQL. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, ...
In this tutorial, we will show you how to completely remove MySQL on your CentOS server. For those of you who didn’t know, MySQL is a relational database management system (RDBMS) that runs as a server providing multi-user access to a number of databases. The MySQL source code is freely available because it was originally developed as freeware. MySQL is written in C and C++ and is compatible w...
In this tutorial, we will show you how to replace OpenSSH with Dropbear on CentOS. For those of you who didn’t know, Dropbear is a relatively small SSH server and client. It runs on a variety of POSIX-based platforms. Dropbear is open-source software, distributed under an MIT-style license. Dropbear is particularly useful for "embedded"-type Linux (or other Unix) systems, such as wireless rout...
In this tutorial, we will show you how to install Suhosin PHP 5 protection security patch on CentOS. For those of you who didn’t know, the Suhosin patch is an advanced protection system for PHP installations. It was designed to protect your servers against a number of well-known problems in PHP applications and on the other hand against potential unknown vulnerabilities within these applicatio...
In this tutorial, we will show you how to install MySQL Database Server on CentOS. For those of you who didn’t know, MySQL is a relational database management system (RDBMS) that runs as a server providing multi-user access to a number of databases. The MySQL source code is freely available because it was originally developed as freeware. MySQL is written in C and C++ and is compatible with al...
In this tutorial, we will show you how to install IonCube Loader on the CentOS system. For those of you who didn’t know, IonCube Loaders is basically an encryption/decryption utility for PHP applications that also assists in speeding up the pages that are served. It is often required for a lot of PHP-based applications. This article assumes you have at least basic knowledge of Linux, know how...
In this tutorial, we will show you how to install PHP 5.5 on CentOS. For those of you who didn’t know, PHP (PHP: Hypertext Preprocessor) is a server-side scripting language designed for web development but also used as a general-purpose programming language. PHP code is interpreted by a web server with a PHP processor module, which generates the resulting web page: PHP commands can be embedded...
In this tutorial, we will show you how to configure Iptables firewall on CentOS. For those of you who didn’t know, Iptables is a user-space application program that allows a system administrator to configure the tables provided by the Linux kernel firewall (implemented as different Netfilter modules) and the chains and rules it stores. Different kernel modules and programs are currently used f...