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Reconnaissance


Reconnaissance
Information Gathering and getting to know the target systems is the first process in ethical hacking. Reconnaissance is a set of processes and techniques (Footprinting, Scanning & Enumeration) used to covertly discover and collect information about a target system.
During reconnaissance, an ethical hacker attempts to gather as much information about a target system as possible, following the seven steps listed below −

Gather initial information
Determine the network range
Identify active machines
Discover open ports and access points
Fingerprint the operating system
Uncover services on ports
Map the network
 We will discuss in detail all these steps in the subsequent chapters of this tutorial. Reconnaissance takes place in two parts − Active Reconnaissance and Passive Reconnaissance.

Active Reconnaissance
In this process, you will directly interact with the computer system to gain information. This information can be relevant and accurate. But there is a risk of getting detected if you are planning active reconnaissance without permission. If you are detected, then system admin can take severe action against you and trail your subsequent activities.

Passive Reconnaissance
In this process, you will not be directly connected to a computer system. This process is used to gather essential information without ever interacting with the target systems.


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Ethical hacking 2018
Ethical hacking 2018
Ethical hacking 2018
Ethical hacking 2018
Ethical hacking 2018
Ethical hacking 2018
Ethical hacking 2018

Ethical hacking 2018 by educational world

Ethical hacking 2018 by educational world
Ethical hacking 2018 by educational world
Ethical hacking 2018 by educational world
Ethical hacking 2018 by educational world
Ethical hacking 2018 by educational world
Ethical hacking 2018 by educational world
Ethical hacking 2018 by educational world

Ethical hacking 2018 by educational world

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