In this video, Marc Menninger describes how to identify network ports and services. Learn how security assessors use OS fingerprinting to identify the operating systems of network devices. Watch a demonstration of Sparta and Nmap to scan ports and services.
- After discovering the devices on the network,…the next logical step in target identification and analysis…is to scan each of these devices further…to learn more about them.…Network devices can generally be identified by which ports…are open and which services are running.…For instance, any device which has port 80 open,…and shows an active HTTP service is likely running…some form of web server, such as Microsoft IIS or Apache.…
Scanning for open ports and running services…can be done with software tools like Nmap.…There are three main purposes for identifying ports…and services on network devices.…To help identify the operating systems on the devices.…To help identify the functions of the devices,…such as web server, FTP server, et cetera.…And, to test the ports and services…for potential security vulnerabilities.…
Because certain operating systems run known unique services,…they can often be used to identify the OS on a device…with a high degree of confidence.…This is called OS fingerprinting.…For instance, if port 111 is open,…
- Developing technical security assessments
- Conducting technical security reviews
- Identifying and analyzing targets
- Validating target vulnerabilities
- Planning a technical assessment
- Conducting a technical assessment
- Implementing remediation and mitigation
Skill Level Intermediate
IT Security Careers and Certifications: First Stepswith Marc Menninger2h 6m Appropriate for all
1. Overview of Technical Security Assessments
2. Technical Security Assessment Reviews
3. Identify and Analyze Targets
4. Validate Target Vulnerabilities
5. Planning Technical Security Assessments
6. Executing the Technical Security Assessment
7. Post-Testing Activities
Report the results2m 16s
Next steps1m 32s
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