Apache White List Module

This module blocks unauthentic HTTP requests by doing DNS lookups agaisnt user agents.

More information here:

https://support.google.com/webmasters/answer/80553?hl=en

https://modules.apache.org/modules.lua?id=13738

Compiling

compiling:

apxs -i -a -c mod_wl.c

---

Verifiying Incoming User-Agents

WLEnabled On

Any user agent

WLEnabled On
WLBot "any"

Matching browsers

WLEnabled On
WLBot "Mozilla5.0 | WebKit1.0 | Safari"

Using mod_wl with PHP, Python, etc.

WLEnabled On
WLSubprocessEnv On

Some PHP code to put it together

<?php
echo "Original Address is: " . $_SERVER{'MODWL_ORIGINAL'} . "<br />";
echo "Reverse DNS is: " . $_SERVER{'MODWL_REVERSE_DNS'} . "<br/>";
echo "Forward DNS is: " . $_SERVER{'MODWL_FORWARD_DNS'} . "<br/>";
echo "Status: " . $_SERVER{'MODWL_STATUS'};
?>

More Examples

You can find more examples in ./examples.