mod_asn - Look up the AS and network prefix of IP address

Property Value
Distribution CentOS 6
Repository Psychotic Ninja x86_64
Package name mod_asn
Package version 1.6
Package release 1.el6.psychotic
Package architecture x86_64
Package type rpm
Installed size 85.94 KB
Download size 37.89 KB
Official Mirror
mod_asn is an Apache module doing lookups of the autonomous system (AS)[1], and
the network prefix[2] which contains a given (clients) IP address.
It is written with scalability in mind. To do high-speed lookups, it uses the
PostgreSQL ip4r datatype[3] that is indexable with a Patricia Trie[4] algorithm to
store network prefixes. This is the only algorithm that can search through the
~250.000 existing prefixes in a breeze.
It comes with script to create such a database (and keep it up to date) with
snapshots from global routing data - from a router's "view of the
world", so to speak.
Apache-internally, the module sets the looked up data as env table variables,
for perusal by other Apache modules. In addition, it can send it as response
headers to the client.
It is published under the Apache License, Version 2.0.
Source code can be obtained from resp.
Author: Peter Poeml


Package Version Architecture Repository
mod_asn-1.6-1.el6.psychotic.i386.rpm 1.6 i386 Psychotic Ninja
mod_asn - - -


Name Value
/usr/bin/env -
httpd -
httpd-mmn = 20051115 -
rtld(GNU_HASH) -


Name Value
mod_asn = 1.6-1.el6.psychotic
mod_asn(x86-64) = 1.6-1.el6.psychotic


Type URL
Binary Package mod_asn-1.6-1.el6.psychotic.x86_64.rpm
Source Package mod_asn-1.6-1.el6.psychotic.src.rpm

Install Howto

  1. Download latest psychotic-release rpm from
  2. Install psychotic-release rpm:
    # rpm -Uvh psychotic-release*rpm
  3. Install mod_asn rpm package:
    # yum --enablerepo=psychotic install mod_asn




2015-01-28 - Psychotic Build System <> - 1.6-1
- Initial build for Psychotic Ninja

See Also

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nethogs-0.8.5-2.el6.psychotic.x86_64.rpm A tool resembling top for network traffic
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nicstat-1.95-3.el6.psychotic.x86_64.rpm CLI utility that prints out network statistics for all network interface
p0f-3.07b-4.el6.psychotic.x86_64.rpm Versatile passive OS fingerprinting tool
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par-1.52-14.el6.psychotic.x86_64.rpm Paragraph reformatter, vaguely like fmt, but more elaborate
par-1.52-15.el6.psychotic.x86_64.rpm Paragraph reformatter, vaguely like fmt, but more elaborate
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