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Simon,<br />
<br />
Thanks! And I'm sorry, I should have indicated that I'm on Apache/2.2.3. &nbsp;Looks like mod_evasive doesn't run on 2.2.x &nbsp;So would you suggest my best option is <a href="http://www.modsecurity.org/" rel="ugc">http://www.modsecurity.org/</a>&nbsp;
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Simon,

Thanks! And I'm sorry, I should have indicated that I'm on Apache/2.2.3.  Looks like mod_evasive doesn't run on 2.2.x  So would you suggest my best option is http://www.modsecurity.org/ [http://www.modsecurity.org/] 

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Yes, mod_security has a whole slew of configuration options, allowing very specific settings. Limiting requests by ip / s is possible.
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Yes, mod_security has a whole slew of configuration options, allowing very specific settings. Limiting requests by ip / s is possible.

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I'm on Red Hat Linux 5 using the Apache web server.<br />
<br />
What are people recommending for protecting against &nbsp;HTTP flood attacks?<br />
<br />
I'd love to have some application that could limit usage by IP address - like allowing only one page load per unique IP address every two seconds.<br />
<br />
Does something like this exist?<br />
<br />
<a href="http://pear.php.net/package/HTTP_FloodControl" rel="ugc">http://pear.php.net/package/HTTP_FloodControl</a>
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I'm on Red Hat Linux 5 using the Apache web server.

What are people recommending for protecting against  HTTP flood attacks?

I'd love to have some application that could limit usage by IP address - like allowing only one page load per unique IP address every two seconds.

Does something like this exist?

http://pear.php.net/package/HTTP_FloodControl

HTTP Flood Denial of Service

Software firewalls, also known as host-based firewalls, provide a layer of software on one host that controls network traffic in and out of that single machine. Most operating systems now include firewall software, but many available software firewalls include central distribution, antivirus systems and disaster recovery.

Software Firewalls

A web server refers to the software that helps to deliver web content that can be accessed either through the Internet or through an intranet. The primary function of a web server is to store, process and deliver web pages to clients. The communication between client and server takes place using the Hypertext Transfer Protocol (HTTP). The most common use of web servers is to host websites, but there are other uses such as gaming, data storage, running enterprise applications, handling email, FTP, etc.

Web Servers

The Apache HTTP Server is a secure, efficient and extensible server that provides HTTP services in sync with the current HTTP standards. Typically Apache is run on a Unix-like operating system, but it is available for a wide variety of operating systems, including Linux, Novell NetWare, Mac OS-X and Windows. Released under the Apache License, Apache is open-source software.