How and from where websites like this http://w开发者_如何转开发ww.yougetsignal.com/tools/web-sites-on-web-server/ are getting this information from? How can I develop such tool?

Thank you.

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You can use nslookup on the IP. Reverse DNS is defined with the .in-addr.arpa domain.

Example:

nslookup somedomain.com

yields 123.21.2.3, and then you do:

nslookup 123.21.2.3

this will ask 3.2.21.123.in-addr.arpa and yield the domain name (if there is one defined for reverse DNS).

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You can use ping -a <ip> or nbtstat -A <ip>

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They're just trawling lists of web sites, and recording the resulting IP addresses in a database.

All you're seeing is the reverse mapping of that list. It's not guaranteed to be a full list (indeed more often than not it won't be) because it's impossible to learn every possible web site address.

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windows user can just using the simple nslookup command

G:\wwwRoot\JavaScript Testing>nslookup 208.97.177.124
Server:  phicomm.me
Address:  192.168.2.1

Name:    apache2-argon.william-floyd.dreamhost.com
Address:  208.97.177.124


G:\wwwRoot\JavaScript Testing>

http://www.guidingtech.com/2890/find-ip-address-nslookup-command-windows/

if you want get more info, please check the following answer!

https://superuser.com/questions/287577/how-to-find-a-domain-based-on-the-ip-address/1177576#1177576

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From about section of Reverse IP Domain Check tool on yougetsignal:

A reverse IP domain check takes a domain name or IP address pointing to a web server and searches for other sites known to be hosted on that same web server. Data is gathered from search engine results, which are not guaranteed to be complete.

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This worked for me to get domain in intranet

https://gist.github.com/jrothmanshore/2656003

It's a powershell script. Run it in PowerShell

.\ip_lookup.ps1 <ip>