MySQL – Basics

MySQL

* MySQL (pronounced my ess cue el) is an open source database management system.

* It uses Structured Query Language (SQL), the most popular language for adding, accessing, and processing data in a database.

* MySQL is noted mainly for its speed, reliability,and flexibility. Continue reading…

LVM – An introduction

LVM HOWTO

An Introduction

This is an attempt to collect everything needed to know to get LVM up and running. The entire process of getting, compiling, installing, and setting up LVM will be covered. Pointers to LVM configurations that have been tested will also be included. This version of the HowTo is for LVM 2 with device-mapper and LVM 1.0.8. All previous versions of LVM are considered obsolete and are only kept for historical reasons.This document makes no attempt to explain or describe the workings or use of those versions.

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Debian vs Centos – A comparison based on Webhosting needs

What is debian?

* Debian is a project based around the development of a free, complete operating system based on the work of the GNU Project through the collaboration of volunteers from around the world. The projects primary focus, projects primary focus, Debian GNU/Linux Debian GNU/Linux, is a popular Linux distribution.

* Debian is known for its adherence to the Unix and free software philosophies and for its abundance of options – the current release includes over fifteen thousand software packages for eleven computer architectures ranging from the ARM architecture commonly found in embedded systems and the IBM eServer zSeries mainframe architecture to the more common Intel x86 and AMD x86-64 architectures found in modern personal computers. Debian GNU/Linux is the basis for several other distributions, including Knoppix, Linspire, and Ubuntu.

* Debian is also known for its package management system (especially APT), strict policies regarding the quality of its packages and releases, and for its open development and testing process.These practices afford easy upgrades between releases without rebooting and easy automated installation and removal of packages.

* Debian is supported by donations through Software in the Public Interest, Inc., a non-profit umbrella organization for free software projects. Continue reading…

OpenVZ – Open Source VPS Software

OpenVZ is an Operating System-level server virtualization solution, built on Linux. OpenVZ creates isolated, secure virtual environments VEs (otherwise known as virtual private servers, or VPS) on a single physical server enabling better server utilization and ensuring that applications do not conflict. Each VE performs and executes exactly like a stand-alone server; VEs can be rebooted independently and have root access, users, IP addresses, memory, processes, files, applications, system libraries and configuration files.
Using premier VPS technology, several isolated VPS systems are installed on a single physical server. Users share systems resources, such as the CPU and memory, but unlike shared hosting the file system is fully partitioned so they are not affected by other activities on the server. This means that up-time is more consistent, while root access to the server provides the flexibility to add and change modules and install your own software. Continue reading…