Running a default scan
Once Nmap is installed and you've chosen a target, it's relatively straightforward to run a scan with the default settings. The command is as straightforward as nmap scanme.nmap.org (assuming http://scanme.nmap.org/ is the target of this particular scan).
As you can see in the preceding screenshot, running a default scan is very easy. Normally, Nmap uses a SYN scan as the default scan type; but because we did not run the scan with root privileges via sudo, Nmap reverts to a "connect" scan instead. We'll get into the differences of specific scan types in Chapter 4, Advanced Nmap Scans.
For now, you can see that we've detected ...
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