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-=============================================- IP secrets that they didn't want you to know... -=============================================- Author: KoReMeLtDoWn of -= KoRe WoRkS =- Internet Security Date Published: 24th November 2001
Introduction: -===========- So here we are, another text file and another night spent writing them for me. Anyway, let's get on track here... The purpose of this file is to demonstrate tactics used by system crackers and other smart individuals to attempt to cover records of interactions between other computers on the internet and possibly even on you local network. This file shouldn't take long to read, but it is well worth your time.
Content -=====- Through my travels around the internet I've seen many strange and wonderful things; one of the tricks I've picked up along the way is the multiple ways that you can hide your IP address from many people. These would be people include curious system administrators, system crackers and ISP's. To my knowledge there are at least four different methods of accessing a single site, and each of these methods provides a seemingly different address to those who browse the log files. This topic of playing with a single IP address and molding it into different shapes has its' advantages in several different fields. People who would use these techniques could be any of the following: System Crackers, Internet Web Marketers, Spammers, School Kids attempting to access forbidden content and anyone else who for some reason does not want their habits viewed easily. Please note that all the method I'm aware of can be tracked, it just makes the process that little bit harder to do. Anyway, here are the methods:
Method One -========- Normal everyday DNS address, this is the DNS of a computer or web site, such as 209.54.110.dialup.anyserver.com or something like koreworks.netfirms.com. There is a reverse DNS Lookup Utility available at http://koreworks.netfirms.com/ for anyone who may need one. This is the most common form of IP Address and commonly is the most common of all IP Address' seen in log files.
Method Two -========- IP Address, this is the raw Internet protocol address assigned to a computer when connecting to the internet, and if the computer being connected to does not have a DNS then the IP address will appear in the log files. Sometimes too, the IP address will appear in preference to the DNS of the computer being connected to because of configuration on the remote computer. Seeing an IP address like this is also typical, but be weary of this, it is possible for someone to do a reverse DNS lookup on a web site or computer, and it will retrieve the IP address, thus then connecting to the remote computer, in this case the person is attempting to hide their tracks. As the saying goes, it's better to be safe than sorry. A DNS lookup utility which is available from http://koreworks.netfirms.com in the downloads section for anyone who may need one will do the job of converting an IP Address into a DNS Name Address.
Method Three -==========- Long IP Address, this method is one of the largely unknown little secrets of the internet. A 32 bit IP address can be converted into a single number which can also be used the same way any IP or DNS address would work on the internet. Take for instance the IP 127.0.0.1, which is the standard loop back address for any PC. The Long IP Address of 127.0.0.1 is 2130706433. If a person were to be using a Long IP Address via http, the log entry would look something similar to this: http://2130706433:80 or http://www.2130706433:80. Seeing this type of activity in your logs is very suspicious, and I would recommend that if you do see any activity similar to this that you check up on it as soon as possible, as this person obviously knows what he is doing and is trying reasonably hard to cover his or her habits online. This type of IP Address is rare, though a few do know about it and use it. There is also a IP Address to Long IP Address converter available at http://koreworks.netfirms.com in the downloads section for anyone who may need one.
Thank you for taking the time to read this tutorial, I hope that you have learned something along the way.
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