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2025-04-03 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Network Security >
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Whether it is intranet *** test, extranet *** test or web *** test, the first step is to step on the spot, that is, scan (of course, if there are social workers at the high-end point). The scanning tool is nmap, and the usage of this tool has spread all over the network. The purpose of scanning is divided into several steps: 1. confirm whether the host is alive;2. confirm the operating system of the host;3. confirm the components run by the host;4. expand the vulnerability of the version on the component.
Here are the steps:
1. Confirm whether the host is alive
nmap - sP IP
Command of ping scan.
Starting Nmap 6.47 ( http://nmap.org ) at 2015-10-10 10:51 CSTNmap scan report for 10.20.255.153Host is up (0.00066s latency).
nmap - sS IP
Scan by SYN
2. Confirm the operating system of the host
nmap -O IP
3. Confirm component version
nmap -sV IP
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