Top 16 Nmap Commands You Must Know! #nmap #cybersecurity #scanner #top16nmapcommands@ScanderLoud

Top 16 Nmap Commands You Must Know!

OUTLINE:
00:00:00
Intro

00:00:15
Basic Nmap Scan against IP or Host

00:00:44 Nmap Ping Scan

00:01:09 Scan Specific Ports or Entire Port Ranges

00:01:43 Scan Multiple IP Addresses

00:02:14 Scan IP Ranges

00:02:40 Scan the Most Popular Ports

00:03:05 Scan Hosts and IP Addresses from a Text File

00:03:27 Save Nmap Scan Results to a File

00:03:53 Disable DNS Name Resolution

00:04:16 OS and Service Detection with Fast Execution

00:04:42 Detect Service/Daemon Versions

00:05:05 Scan Using TCP or UDP Protocols

00:05:38 CVE Detection Using Nmap

00:06:01 Flood Testing with Nmap

00:06:26 Testing Brute Force Attacks

00:06:59 Detecting Malware Infections on Remote Hosts

00:07:26 Conclusion

Top 16 Nmap Commands: A Comprehensive Guide
1. Basic Nmap Scan against IP or Host
* Explanation: This is the most basic form of Nmap scanning, used to check the status of a single IP or domain. It helps determine if the host is up and accessible, and what services might be running.
2. Nmap Ping Scan
* Command: nmap -sp 192.168.5.0/24
* Explanation: This command is used to identify live hosts on a network by sending ICMP echo requests (pings). It's a quick way to discover which devices are active within a specified IP range.
3. Scan Specific Ports or Entire Port Ranges
* Command: nmap -p 1-65535 localhost
* Explanation: This command scans all 65,535 ports on a host, which is useful for comprehensive security assessments. You can also specify particular ports for faster results, e.g., nmap -p 80,443 8.8.8.8.
4. Scan Multiple IP Addresses
* Command: nmap 1.1.1.1 8.8.8.8 or nmap 1.1.1.1,2,3,4
* Explanation: This command allows scanning of multiple IP addresses or a list of IPs sequentially. It’s useful for assessing multiple targets at once.
5. Scan IP Ranges
* Command: nmap 8.8.8.0/28
* Explanation: This command scans an entire CIDR IP range, useful for network-wide scans. It can also be specified with ranges like nmap 8.8.8.1-14 or wildcard nmap 8.8.8.* for broader scans.
6. Scan the Most Popular Ports
* Command: nmap --top-ports 20 192.168.1.106
* Explanation: This scans the top N most commonly used ports (e.g., 20 in the example), which is efficient for quickly identifying the most critical services on a host.
7. Scan Hosts and IP Addresses from a Text File
8. Save Nmap Scan Results to a File
* Explanation: Saves the scan results in a specified format, like normal text (-oN) or XML (-oX), useful for documentation or further analysis.
9. Disable DNS Name Resolution
* Command: nmap -p 80 -n 8.8.8.8
* Explanation: This speeds up scans by disabling reverse DNS resolution, which can be particularly helpful for large network scans.
11. Detect Service/Daemon Versions - Command: nmap -sV localhost - Explanation: This command identifies the version of services running on open ports, which is crucial for vulnerability assessment and security auditing.
12. Scan Using TCP or UDP Protocols - Command: nmap -sT 192.168.1.1 (TCP) or nmap -sU localhost (UDP) - Explanation: Nmap can scan using both TCP (-sT) and UDP (-sU) protocols, allowing for comprehensive network mapping and service identification.
13. CVE Detection Using Nmap - Command: nmap -Pn --script vuln 192.168.1.105 - Explanation: This uses Nmap’s scripting engine (NSE) to detect vulnerabilities based on known CVEs (Common Vulnerabilities and Exposures), making it a powerful tool for identifying security flaws.
16. Detecting Malware Infections on Remote Hosts - Command: nmap -sV --script=http-malware-host 192.168.1.105 - Explanation: This command scans for malware and backdoors by checking known malware signatures and behaviors on remote hosts.