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mod_asn 1.4

 

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mod_asn is an Apache module that uses BGP routing data to look up the autonomous system (AS) and the network prefix (subnet) which contains a given (clients) IP address.mod_asn is highly scalable.
mod_asn is a completely free software. You can free download and use it as long as you like.


 

An Apache module to look up routing data

mod_asn is an Apache module that uses BGP routing data to look up the autonomous system (AS) and the network prefix (subnet) which contains a given (clients) IP address.mod_asn is highly scalable. To do lookups in high-speed, it uses the PostgreSQL ip4r datatype that is indexable with a Patricia Trie algorithm to store network prefixes. This is the most suitable algorithm being able to search through the ~250.000 existing prefixes in a breeze.mod_asn is usable as standalone module, and the lookup result can be used by scripts or other Apache modules. For instance, a download redirector could base its decisions on the lookup result provided by mod_asn.mod_asn is also used by MirrorBrain, a download redirector and metalink generator.The source code is available under the terms of the Apache License, Version 2.0.It is available as sources in the openSUSE build service (requires an openSUSE build service account) and as RPM and Debian package. You can browse (or check out) the source code from the svn repository (viewvc link).

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