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Entries for the ‘Linux’ Category

Server Loads Explained

Server Load Explanation
The load average tries to measure the number of active processes at any time. As a measure of CPU utilization, the load average is simplistic, poorly defined, but far from useless. High load averages usually mean that the system is being used heavily and the response time is correspondingly [...]

Apache 2 and PHP 4 and 5 Installation Guide

This tutorial is designed to help those who would like to install Apache 2 and PHP as mod_php or a DSO module on a UNIX/Linux based system. This tutorial has been tested on Redhat 9 and Redhat 8, as well as FreeBSD. The installation should work fairly similar on each variation of [...]

Howto mod_rewrite with Apache

About mod_rewrite for Apache
This module uses a rule-based rewriting engine (based on a regular-expression parser) to rewrite requested URLs on the fly. It supports an unlimited number of rules and an unlimited number of attached rule conditions for each rule to provide a really flexible and powerful URL manipulation mechanism. The [...]

Apache 1.3 and 2.0 Flood/DoS/DDoS Protection with mod_dosevasive (Avoiding Denial of Service Attacks)

With the widespread infection of many computers with viruses, and the ever increasing number of Botnets, DoS and DDoS attacks can be quite frequent and can very easily bring a website to halt for days. This article provides a module solution for apache to help mitigate small http DoS and DDoS [...]

How to fix or repair a mySQL database (restore – repair – recover)

From time to time mySQL databases can get corrupt, whether it due to lack of disk space, power failure, or just an error.
Repairing MyISAM mySQL Tables/Databases:

cd /var/lib/mysql/DBNAME
#^ Please note that we assume your mySQL data directory is /var/lib/mysql

myisamchk *.MYI

How to use scp, tar and rsync for transfering files

One of the many advantages of Linux/UNIX is how many ways you can do one thing. This tuturial is going to show you some of the many ways you can ttransfer files over a network connection.
In this article/tutorial we will cover rsync, scp, and tar. Please note that there are many other [...]