What is Scanning

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                        Scanning

scanning is phase of information gathering in which attacker gather more advanced information about the target like open ports and services running , operating system of the target , etc .

Generally this phase gives us vulnerable point about the target. Information gathered by scanning is very important in performing actual HACK . It is important phase which help in gaining access into the system. In scanning, ect. will be covered.

Attacker      ￫  OSI Layer (Layer 3 & 4)   ⟶ Target Network

 Between attacker and target the core OSI module layers, layer 3 which is ipv4 , ipv6 and icmp and layer 4 which is TCP  and UPD is present. Transmission over a network is done through these layers. It is compulsory to understand the working of layer 3 and layer 4 of OSI module if attacker wish to penetrate over network layer.

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