GoIPLookup - geoiplookup for GeoLite2 written in Go

GoIPLookup is a geoiplookup replacement for the free MaxMind GeoLite2-Country, written in Go.

It currently only supports the free GeoLite2-Country database, and there is no planned support for the other types.

Features

• Drop-in replacement for the now defunct geoiplookup utility, simply rename it
• Works with the current MaxMind database format (mmdd)
• IPv4, IPv6 and fully qualified domain name (FQDN) support
• Options to return just the country iso (NZ) or country name (New Zealand), rather than the full GeoIP Country Edition: NZ, New Zealand
• Built-in database update support (see Database updates)
• Built-in self updater (if new release is available)

Installing

Multiple OS/Architecture binaries are supplied with releases. Extract the binary, make it executable, and move it to a location such as /usr/local/bin.

If you wish to replace an existing defunct implementation of geoiplookup, then simply name the file geoiplookup.

Basic usage

Usage: goiplookup [-i] [-c] [-d <database directory>] <ipaddress|hostname|db-update|self-update>

Options:
  -V	show version number
  -c	return country name
  -d string
    	database directory or file (default "/usr/share/GeoIP")
  -h	show help
  -i	return country iso code
  -v	verbose/debug output

Examples:
goiplookup 8.8.8.8			Return the country ISO code and name
goiplookup -d ~/GeoIP 8.8.8.8		Use a different database directory
goiplookup -i 8.8.8.8			Return just the country ISO code
goiplookup -c 8.8.8.8			Return just the country name
goiplookup db-update			Update the GeoLite2-Country database (do not run more than once a month)
goiplookup self-update			Update the GoIpLookup binary with the latest release

GoIPLookup updates

GoIPLookup comes with a built-in self-updater:

goiplookup self-update

Version checked (goiplookup -V) will tell you if your version is out of date.

Database updates

GoIPLookup is able to update your GeoLite2 Country database. As of 01/01/2020 MaxMind require a (free) License Key in order to download these updates. The release (binary) versions of goiplookup (>= 0.2.2) already contain a key for this, however if you are compiling from source you will need to set your own licence key in your environment (see below).

Binary release database updates

goiplookup db-update

Self-compiled database updates

If you wish to use your own MaxMind license key, or you are compiling from source, then you must provide a key in your environment. To generate your own license key from MaxMind you must first register a free account and follow the instructions.

LICENSEKEY="xxxxxxxx" goiplookup db-update

or

export LICENSEKEY="xxxxxxxx"
goiplookup db-update

or if you wish to compile the source code yourself with your key:

make LICENSEKEY="xxxxxxxx"

Compiling from source

Go >= 1.11 required:

go get github.com/axllent/goiplookup