Tuning Apache for High Traffic
Step 1: Optimize your software First of all, optimize your software. No LAMP stack setup can repair the damage done by bad database queries, missing caching algorithms, bloated code and...
How To Install Linux, Lighttpd, MySQL, and PHP5 (LLMP Stack) on Centos 6
Introduction Lighttpd is an open source web server originally written by Jan Kneschke as an alternative to Apache, it has a low memory footprint and numerous websites such as YouTube...
Adding Secondary IP Addresses On Centos
There are plenty of reasons you would need an additional IP address (and everyone agrees that SEO is not one of them). Getting a secondary IP address is a simple process if...
Securing DNS against DDOS Amplification Attacks
When you run a DNS server on your dedicated server, it will be the target DNS amplification attacks. To prevent these attacks from succeeding and using up your bandwidth (which you will...
IPtables Blacklists
Many of you already use online blacklists to fight spam. Recently I’ve dicovered http://www.openbl.org/ and started using their lists on my firewall to prevent attacks from hosts that are known to be...
How To Stop DDoS Using Mod_Evasive
What is mod_evasive? mod_evasive is an evasive maneuvers module for Apache to provide evasive action in the event of an HTTP DoS or DDoS attack or brute force attack. It...
Install Linux Malware Detect (LMD) in RHEL, CentOS and Fedora
What is Malware? Malware is called malicious software, script or code which is created and used by hackers to retrieve information of private data or gain access to any private computer...
What is the .htaccess file and what do I use it for?
Htaccess files are hidden plain text files that are on the server to help control how your visitors interact with your website. The htaccess file is also used to block...
How to Install ClamAV and Configure Daily Scanning on CentOS
ClamAV is an open source (GPL) antivirus engine designed for detecting Trojans, viruses, malware and other malicious threats on Linux. In this article, we will only be configuring ClamAV to...
How To Set Up Apache Virtual Hosts on CentOS 6
Virtual Hosts are used to run more than one domain off of a single IP address. This is especially useful to people who need to run several sites off of...