What Does Nmap sS Mean

SYN scan is the default and most popular scan option for good reason. It can be performed quickly, scanning thousands of ports per second on a fast network not hampered by intrusive firewalls. SYN scan is relatively unobtrusive and stealthy, since it never completes TCP connections.

What is Nmap SC?

Performs a script scan using the default set of scripts. It is equivalent to –script=default. Some of the scripts in this category are considered intrusive and should not be run against a target network without permission.

What is PN in Nmap?

-Pn (No ping) . This option skips the Nmap discovery stage altogether. Normally, Nmap uses this stage to determine active machines for heavier scanning. By default, Nmap only performs heavy probing such as port scans, version detection, or OS detection against hosts that are found to be up.