Haiyu aben

nginx with ngx_http_geoip_module, echo-nginx-module, lua-nginx-module is required; libgeoip needs to be installed and geoip database should be placed under /usr/share/GeoIP.
http://example.com for current GeoIP and http://example.com/ip for current IP only
http://example.com/x.x.x.x to query any IP.
http://example.com/domain-name for GeoIP of domain-name and http://example.com/domain-name/ip to return IP of domain-name only. If multiple IPs are set to single domain-name, all of them will be returned. Only A record will be used.
Sample requests are:

$ curl http://example.com/
x.x.x.x
Country, Region, City
ASN number

	#dump http response
	tcpdump -s 0 -A 'src port 80 and tcp[((tcp[12:1]&0xf0)>>2):4]=0x48545450'
	tcpdump -s 0 -A 'src port 80 and tcp[((tcp[12:1]&0xf0)>>2):4]='$(python -c "print '0x' + ''.join(hex(ord(i))[2:] for i in 'HTTP')")

	#dump http post request, following two are equal, 0x504f5354 <-> POST
	tcpdump -s 0 -A 'dst port 80 and tcp[((tcp[12:1]&0xf0)>>2):4]=0x504f5354'
	tcpdump -s 0 -A 'dst port 80 and tcp[((tcp[12:1]&0xf0)>>2):4]='$(python -c "print '0x' + ''.join(hex(ord(i))[2:] for i in 'POST')")

	#dump http get request
	tcpdump -s 0 -A 'dst port 80 and tcp[((tcp[12:1]&0xf0)>>2):4]='$(python -c "print '0x' + ''.join(hex(ord(i))[2:] for i in 'GET ')")

	#!/bin/bash

	function usage {
	echo "USAGE: git merge-svn <from> [<to>]"
	echo ""
	echo " from The branch name to be merged FROM"
	echo " to Optional branch name to be merged onto. Default: HEAD"
	echo ""
	}

	<!doctype html>

	<!-- http://taylor.fausak.me/2015/01/27/ios-8-web-apps/ -->

	<html>
	<head>
	<title>iOS 8 web app</title>

	<!-- CONFIGURATION -->

	// JS Module Pattern:
	// http://j.mp/module-pattern

	// Redefine: $, window, document, undefined.
	var APP = (function($, window, document, undefined) {
	// Automatically calls all functions in APP.init
	$(document).ready(function() {
	APP.go();
	});