Installation and use of Nmap under Linux

Nmap can be obtained on the official website

https://nmap.org/

I use the Nmap binary package to compile the installation under Linux

After decompression, execute in file directory

./configure--prefix=/usr/local/nmapmakemake Installalias Nmap=/usr/local/nmap/bin/nmap

Complete the installation

Using Nmap under Linux

Parameters:

-pn:treat all hosts as online--skip host discovery

All hosts as online processing-skip host Discovery

-sn:ping scan-disable Port Scan

Ping sweep surface--port scan failure

-SU:UDP Scan

UDP scan

-ss:tcp SYN

Using SYN half-open scanning, this scanning method makes the scan result more correct (also known as semi-open, or stealth scanning)

-P <port ranges>: only scan specified ports

Ex:-p22; -p1-65535; -P U:53,111,137,t:21-25,80,139,8080,s:9

Port scan

-a:enable OS detection, version detection, script scanning, and traceroute

Enable operating system fingerprinting and version detection at the same time

-v:increase verbosity level (USE-VV or more for greater effect)

Show detailed scanning process (-VV more detailed)

-o:enable OS Detection

Uppercase o stands for OS judgment host operating system

SCAN Techniques:

-ss/st/sa/sw/sm:tcp Syn/connect ()/ack/window/maimon Scans

-SU:UDP Scan

-sn/sf/sx:tcp Null, FIN, and Xmas scans

--scanflags <flags>: Customize TCP Scan Flags

-si <zombie host[:p robeport]>: Idle scan

-SY/SZ:SCTP Init/cookie-echo Scans

-SO:IP Protocol Scan

-B <ftp relay Host>: FTP Bounce Scan

This article is from the "rime" blog, please be sure to keep this source http://kinrey.blog.51cto.com/10492082/1771446

Installation and use of Nmap under Linux