September 2018
Intermediate to advanced
304 pages
6h 35m
English
Content preview from Network Scanning Cookbook
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Service or version detection
Nmap has a database of about 2,200 well-known services. Once the ports are detected to be open, these options can be used to identify the exact type and version of the service running. Nmap does this by querying these ports with specific requests and analyzes the responses received.
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