Common nmap commands and nmap commands

Common nmap commands and nmap commands

1) obtain the system type and open port of the remote host

nmap -sS -P0 -sV -O <target>

<Target> can be a single IP address, host name, domain name, or subnet.

-SS tcp syn scan (also known as semi-open or stealth scan)
-P0 allows you to Disable ICMP pings.
-SV: Enable System Version Detection
-O attempts to identify remote operating systems

Other options:

-A: Enable the operating system fingerprint and version detection at the same time.
-V: Output Scan details.

 

nmap -sS -P0 -A -v < target >

2) list hosts with specified ports Enabled

nmap -sT -p 80 -oG – 192.168.1.* | grep open

3) Search for all online hosts on the network

nmap -sP 192.168.0.*

You can also use the following command:

nmap -sP 192.168.0.0/24

Specify subnet

4) Ping the IP address within the specified range

nmap -sP 192.168.1.100-254

5) Search for unused IP addresses on a subnetwork

nmap -T4 -sP 192.168.2.0/24 && egrep "00:00:00:00:00:00" /proc/net/arp

6) scan the Conficker worm on the LAN.

nmap -PN -T4 -p139,445 -n -v --script=smb-check-vulns --script-args safe=1 192.168.0.1-254

7) scan the malicious access point (rogue APs) on the network ).

nmap -A -p1-85,113,443,8080-8100 -T4 --min-hostgroup 50 --max-rtt-timeout 2000 --initial-rtt-timeout 300 --max-retries 3 --host-timeout 20m --max-scan-delay 1000 -oA wapscan 10.0.0.0/8

8) scan host ports using bait scanning methods

sudo nmap -sS 192.168.0.10 -D 192.168.0.2

9) List reverse DNS records for a subnet

nmap -R -sL 209.85.229.99/27 | awk '{if($3=="not")print"("$2") no PTR";else print$3" is "$2}' | grep '('

10) How many Linux and Win devices are displayed on the network?

sudo nmap -F -O 192.168.0.1-255 | grep "Running: " > /tmp/os; echo "$(cat /tmp/os | grep Linux | wc -l) Linux device(s)"; echo "$(cat /tmp/os | grep Windows | wc -l) Window(s) device"