How To Block Spammers/Hackers With mod_defensible On Apache2 (Debian Etch)

mod_defensible
is an Apache 2.x module intended to block spammers/hackers/script
kiddies using DNSBL servers. It will look at the client IP and check it
in one or several DNSBL servers and return a 403 Forbidden page to the
client. This guide shows how to install and use it with Apache 2 on a
Debian Etch server.
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