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Network enumeration

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Title: Network enumeration  
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Subject: Hacker (computer security)
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Network enumeration

Network enumeration is a computing activity in which usernames and info on groups, shares, and services of networked computers are retrieved. It should not be confused with network mapping, which only retrieves information about which servers are connected to a specific network and what operating system run on them.


A network enumerator or network scanner is a computer program used to retrieve usernames and info on groups, shares, and services of networked computers. This type of program scans networks for vulnerabilities in the security of that network. If there is a vulnerability with the security of the network, it will send a report back to a hacker who may use this info to exploit that network glitch to gain entry to the network or for other malicious activities. Ethical hackers often also use the information to remove the glitches and strengthen their network.

Malicious (or "black-hat") hackers can, on entry of the network, get to security-sensitive information or corrupt the network making it useless. If this network belonged to a company which used this network on a regular basis, the company would lose the function to send information internally to other departments.

Network enumerators are often used by script kiddies for ease of use, as well as by more experienced hackers in cooperation with other programs/manual lookups. Also, whois queries, zone transfers, ping sweeps, and traceroute can be performed. [1]

Popular open source network enumerators

See also


  • Identifying Web Applications by Fabian Mihailowitsch
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