Nmap most useful commands

Hello guys Welcome in CYBERBYTE BLOG

today we'll know about nmap,N-network map-mapper,Nmap is a free and open-source network scanner created by Gordon Lyon. Nmap is used to discover hosts and services on a computer network by sending packets and analyzing the responses. 

Some usefull commands

1-Basic Nmap Scan against IP or host

-nmap 1.1.1.1

-nmap cloudflare.com

2-Scan specific ports or scan entire port ranges on a local or remote server

-nmap -p 1-65535 localhost

-nmap -p 80,443 8.8.8.8

3-Scan multiple IP addresses

-nmap 1.1.1.1 8.8.8.8

-nmap -p 1.1.1.1,2,3,4

4-Scan IP ranges using nmap

-nmap -p 8.8.8.0/28

-nmap 8.8.8.1-14

-nmap 8.8.8.*

-nmap -p 8.8.8.* --exclude 8.8.8.1

5. Scan the most popular ports

-nmap --top-ports 20 192.168.1.106

-nmap --top-ports 20 localhost

6. Scan hosts and IP addresses reading from a text file

-192.168.1.106 

cloudflare.com 

microsoft.com

 securitytrails.com

-nmap -iL list.txt

7-Save your Nmap scan results to a file

-nmap -oN output.txt securitytrails.com

-nmap -oX output.xml securitytrails.com

8-Disabling DNS name resolution

-nmap -p 80 -n 8.8.8.8

-nmap -p 80 8.8.8.8

9-Scan + OS and service detection with fast execution

-nmap -A -T4 cloudflare.com

10- Detect service/ versions

-nmap -sV localhost

11-Scan using TCP or UDP protocols

-nmap -sT 192.168.1.1

-nmap -sU localhost

12-CVE detection using Nmap

-nmap -Pn --script vuln 192.168.1.105

13. Launching DOS with Nmap

-nmap 192.168.1.105 -max-parallelism 800 -Pn