Unlocking the Secrets of Network Security: Advanced Nmap Commands for Effective Penetration Testing.

Jamil Ur Rehman
3 min readAug 15


Here are some advanced Nmap commands and examples showcasing how they can be utilized in proficient penetration testing:

Disclaimer: Some of these commands are extremely powerful that all indicate Firewalls and in tha case your public network or Private Network IP can be Backlist

Photo by Jordan Harrison on Unsplash

Nmap Variants : Nmap is MIT license which mean you can modify it as per your requirements. You can use Nmap on Cloud Shell Linux , Window MacOs. if you don’t have knowledge of Nmap Command the one of best ways that use Nmap with GUI Mood that can Help you a lot for leaning

Comprehensive Scanning:

nmap -p- <target_IP>

This command performs a scan on all TCP ports, providing a comprehensive assessment of open ports on the target IP.

2. OS and Service Fingerprinting:

nmap -A <target_IP>

nmap -p- <target_IP>
This command enables OS detection, service/version detection, script scanning, and traceroute, allowing for intelligent identification of the target system.

3. Script Scanning:

nmap — script <script_name> <target_IP>

This command executes a specific NSE script against the target IP, allowing for targeted vulnerability detection or specific tasks. Example: `nmap — script smb-vuln-cve2017–7494 <target_IP>`.

4. Exploiting Vulnerabilities:

nmap — script <exploit_script> — script-args <args> <target_IP>

This command runs an NSE script designed to exploit a known vulnerability on the target system. Example:

nmap — script ftp-vsftpd-backdoor — script-args “passive=on” <target_IP>

5. Output and Reporting:

nmap -oX <output_file.xml> <target_IP>

This command saves the scan results in XML format for further analysis or generating reports. Example: `nmap -oX scan_results.xml <target_IP>`.

6. Firewall Evasion Techniques:

nmap -f -D <decoy_IPs> <target_IP>
This command employs fragmentation and decoy IP addresses to evade detection by firewalls and intrusion detection systems. Example:

nmap -f -D RND:10 <target_IP>

7. Network Topology Discovery:

nmap -sn <network_IP_range>

This command performs a ping scan to discover live hosts within a specific IP range, aiding in network reconnaissance. Example:

nmap -sn

8. UDP Port Scanning:

nmap -sU -p <port_range> <target_IP>

This command performs a UDP port scan on specific ports, identifying open UDP services on the target IP. Example: `

nmap -sU -p 53,161 <target_IP>


if you wanna learn Pen Testing you can Fallow This atrical https://medium.com/@jamilahmad-dev/quick-guide-for-cyber-security-pen-testing-that-can-help-65505cd23470

With time to time update this will be updated.



Jamil Ur Rehman

"Software engineer sharing insights on coding, problem-solving, and industry trends. Let's connect and learn together in the world of software development."