August 2018
Intermediate to advanced
482 pages
12h 44m
English
Content preview from Practical Linux Security Cookbook - Second Edition
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How it works...
When Nmap is simply run on an IP address, it does a basic scan and tells us the ports that are open on the target system. By knowing the open ports, we can identify the services running on the system. In the same way, nmap is used to scan the local system by providing the IP address of the local system.
Nmap can also be used to scan multiple IP addresses at the same time, by simply mentioning the IP addresses one after the other, in the same command. Also, Nmap is used to check which systems are up and running in the network.
It is also used to scan for a particular port using the -p option, and if the -O option is used, it does a fingerprinting of the target system to display which operating system is running on it.
Nmap ...
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