Nmap Top 10 Commands

10 nmap Commands

#1 Scan a single host or an IP address (IPv4)

nmap 192.168.1.1
Or
nmap secinside.in

Output 

#2 Nmap Syn Stelth Scan

 nmap -v -A secinside.in

Output

#3 Nmap Complete Network Host Scann

nmap -sP 192.168.1.0/24

#4 Only show open (or possibly open) ports

nmap --open 192.168.1.1

nmap --open secinside.in

#5: Scan a host using UDP ping

nmap -PU 192.168.1.1

#6: Scan a host when protected by the firewall

nmap -PN 192.168.1.1

nmap -PN secinside.in

#7: Show all packets sent and received

nmap --packet-trace 192.168.1.1

nmap --packet-trace secinside.in

#8: Display the reason a port is in a particular state

nmap --reason 192.168.1.1

nmap --reason secinside.in

#9: How do I detect remote operating system?

You can identify a remote host apps and OS 

using the -O option:

nmap -O 192.168.1.1

nmap -v -O 192.168.1.1

nmap -O secinside.in

#10: How do I scan specific ports?

#15: How do I scan specific ports?

map -p [port] hostName

## Scan port 80

nmap -p 80 192.168.1.1

## Scan TCP port 80

nmap -p T:80 192.168.1.1

## Scan UDP port 53

nmap -p U:53 192.168.1.1

## Scan two ports ##

nmap -p 80,443 192.168.1.1

## Scan port ranges ##

nmap -p 80-200 192.168.1.1

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