WorldIP - free geolocation database, service and tools

In firewall it is possible to filter by country. It is very useful to block certain countries or to balance the requests to different backends, each of which handles its region.

Now WorldIP database exists in the format for geoip module from the extension package xtables-addons for iptables. Using this module, you can build more flexible rules for iptables, based on IP-geolocation.
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Thanks to Craig MacKenna, there is the module IP::World for WorldIP base in CPAN.
Today it is the fastest module for access to IP database. At Athlon64 2.4GHz are 236K req/sec; XEON E5405 2Ghz - 267K req/sec
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WIP-tools include pings, traceroutes and Reverse DNS. Pings can be performed simultaneously on all servers. This option for traces will be available soon. Use our monitoring servers to analyse the IP addresses and networks.
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Of all the Service-Codes, we have opened the satellite providers and bots (except spy bots) now, according to our classification it is 10-14 and 40-41.
Others will be opened some time later.

The access to databases with service codes is made possible only through API, they are not distributed in any other way. If it did, it would have no particular usage, since, for example, the renewal of proxy list and of Tor network active nodes occurs every hour anew.
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There is a geolocation mod for Invision Power Board (IPB).
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Configuration and use of the database (CIDR) are very practical and comfortable in nginx, so there is no problem to install it
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The table worldip contains fields start, end and code. Every row means a network. start and end are integer fields with IP numbers, code is a double-character country code, like "US".
You can convert every IP address to IP number with following formula
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There is source codes written in PHP and Python(for Django). Other languages and codes coming soon.
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Whois contains information such as geographic locations of network owners, and not the geographic location of networks themselves. But these data are also often inaccurate, sometimes even intentionally erroneous.
Here are only a few cases with examples as disadvantages of such information.
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