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Author: UltratechHost - Replies: 0 - Views: 10136
DDOS Protection: Blocking Proxies Tutorial
Since a lot of people proxy DDoS, it’s useful to protect your site against it.

You have three options if you have total control over the server…

1. Detect proxies and block them on firewall/mod_security level
2. (1) Detect them via PHP and block them via .htaccess
3. (2) Detect and block them via .htaccess (new method added!)

01Since most people use shared hosting, number 3 is the best option unless you feel like manually banning 600 ips from /

So, just put this litle code
Author: UltratechHost - Replies: 0 - Views: 9251
An overview of DoS and Ways to Detect and Prevent DDoS Attack
DoS is an abbreviation of Denial of Service attack. It is a type of attack on a network which is developed to flood the network with useless traffic. Many DoS attacks, such as the Ping of Death and Teardrop attacks, exploit limitations in the TCP/IP protocols. For almost every attack that is known, there are software fixes available, which the system administrators can install to limit the damage caused by the attacks. Just like viruses, newer DoS attacks are being developed by hackers.With this
Author: UltratechHost - Replies: 0 - Views: 13399
Server Security (Apache, SSL, SSH, cP/WHM, Firewall, RootKit, DDoS Protection)
/================================================================================ \
-------------------------------:[Server Security]:--------------------------------

#1) Upgrade Apache/PHP, MySQL, OpenSSH, OpenSSL, cP/WHM
Author: UltratechHost - Replies: 0 - Views: 5672
DoS Protection via APF, BFD, DDOS and RootKit
Being a web host, your servers are constantly being attacked by hackers by denial-of-service (DoS) and other brute force attacks. There is no foolproof method to stop 100% of all attacks, but there are ways to protect your servers by applying firewall rules, and detecting and banning attacking IPs.

This article makes use of the APF, BFD, DDoS Deflate and RootKit to detect and protect your server from denial-of-service type attacks. To apply those utilities, please follow the instructions belo
Author: UltratechHost - Replies: 0 - Views: 4612
DDoS protection with bandwidth shaping
1. Protecting your host from SYN floods

From Alexey's iproute documentation, adapted to netfilter and with more plausible paths. If you use this, take care to adjust the numbers to reasonable values for your system.

If you want to protect an entire network, skip this script, which is best suited for a single host.

It appears that you need the very latest version of the iproute2 tools to get this to work with 2.4.0.

#! /bin/sh -x
# sample script on using the ingress capabilities
Author: UltratechHost - Replies: 0 - Views: 6186
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 attacks.

Download the latest version of mod_dosevasive from:

The lastest version is 1.10
Author: UltratechHost - Replies: 0 - Views: 24973
How to Install and Configure CSF Firewall/DDOS on VPS and Dedicated Server

In this tutorial we will show you how to install and configure firewall so please follow all the bellow steps

Step1. Lets install csf firewall

1.1 Download CSF Firewall
wget http://www.configserver.com/free/csf.tgz

1.2 Extracting downloaded files
tar -xzf csf.tgz

1.3 Changing the directory for installation
cd csf

1.4 Installation of CSF
sh install.sh

1.5 Now lets test csf
[code]perl /etc/csf/csftest.pl[/c
Author: UltratechHost - Replies: 0 - Views: 10988
How to Configure APF Firewall, DDOS and Brute Force Protection
This How-To will explain the installation and configuration of Advanced Policy Firewall for your Linux system. In addition, a sample conf.apf file will be provided for each control panel, CPanel and Plesk; however, the first task at hand is Installation.

What is APF (Advanced Policy Firewall)?
Advanced Policy Firewall (APF) is an iptables(netfilter) based firewall system designed around the essential needs of today’s Linux servers. The configuration is designed to be very informative and eas
Author: UltratechHost - Replies: 0 - Views: 11585
Protecting Apache with Mod_QOS to Prevent DDOS Attacks of Slowloris
Apache being the dinosaur that it is prone to a host of denial of service attacks. A common form of attack refered to as HTTP flooding (for example Slowloris) exploits Apache’s architecture.

Installing and setting up Mod_QOS

Firstly we will download Mod_QOS:

cd /tmp
wget http://kent.dl.sourceforge.net/project/mod-qos/mod_qos-9.57.tar.gz
apt-get install apache2-threaded-dev gcc

Untar the archive:

tar -xvf mod_qos-9.57.tar.gz
cd mod_qos-9.57/apache2