Introduction to Nmap

This video is an introduction to Nmap.

Intro 0:00 Installation 0:31 Reverse DNS Lookup 0:59 Ping Sweep 1:50 Exclude an Address 2:34 Scanning from a List 3:24 Saving Output 3:59 Basic Port Scan 5:52 Service Scan 6:44 UDP Scan 7:34 Verbosity and Scan Speed 8:09 NSE - Default Scripts 9:24 NSE - http-Malware-host 11:09 Outro 11:58

1. Install nmap $ sudo apt update && sudo apt install nmap

2. Check version $ nmap --version

3. scan every IP in network block and do a reverse DNS lookup $ nmap -sL 192.168.1.0/24

4. Ping sweep a network $ nmap -sn --open 192.168.1.0/24

5. Exclude an IP address $ nmap -p 192.168.1.0/24 --exclude 192.168.1.1

6. Save output $ nmap -oA output scanme.nmap.org

7. Scan from a list $ nmap -iL iplist.txt

8. Adjust scan speed (-T3 is default) $ nmap -T4 scanme.nmap.org

9. Detect services that are running $ nmap -sV scanme.nmap.org

10. Scan TCP and UDP ports $ nmap -sT -sU scanme.nmap.org

11. Scan with defautl 'safe' scripts $ nmap -sV -sC scanme.nmap.org

12. A common malware scan can be performed by using $ nmap -sV --script=http-malware-host 192.168.1.105

Scritps are located at /usr/share/nmap/scripts/

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