Footprinting (Part 1)
Footprinting is the technique of gathering information about computer systems and the entities they belong to. This is done by employing various computer security techniques, as:
- DNS queries
- Network enumeration
- Network queries
- Operating system identification
- Organizational queries
- Ping sweeps
- Point of contact queries
- Port Scanning
- Registrar queries (WHOIS queries)
Why is Footprinting Necessary
Footprinting is necessary to systematically and methodically ensure that all pieces of information related to the aforementioned technologies are identified.
Information Gathering Methodology
1. The attacker would first unearth initial information (such as domain name),
2. locate the network range of the target system (using tools such as Nslookup, whois etc),
3. Ascertain the active machines (for instance by pinging the machine),
4. discover open ports or access points (using tools such as port scanners),
5. Detect operating systems (for instance querying with telnet),
6. Uncover services on ports and
7. Map the network.
Extracting Archive of a Website
You can get all information of a company’s website since the time it was launched at www.archive.org
People Search
Best People Search
www.bestpeoplesearch.com
Profile Search by Email
www.lullar.com
Name Check
Footprinting Through Job Sites
www.naukri.com


