💡 Learn from AI

Introduction to Ethical Hacking

Scanning Networks

Scanning Networks

Scanning networks is an important part of the ethical hacking process. It involves identifying hosts and services on a network, as well as their operating systems and applications. There are different types of scanning techniques that can be used to gather this information, including:

  • Port scanning
  • Network mapping
  • Vulnerability scanning

Port Scanning

Port scanning is the process of scanning a network for open ports. An open port is a network port that is actively accepting incoming data packets. By determining which ports are open on a target system, an attacker can identify potential vulnerabilities that can be exploited. There are different types of port scans that can be used, including:

  • TCP scans
  • UDP scans
  • Stealth scans

TCP Scans

TCP scans are the most common and involve sending TCP packets to a range of ports on a target system. The response from the system can indicate whether a port is open or closed.

UDP Scans

UDP scans involve sending UDP packets to a range of ports on a target system. The response from the system can indicate whether a port is open, closed, or filtered.

Stealth Scans

Stealth scans are a type of port scan that are designed to avoid detection by intrusion detection systems (IDS) and firewalls. They involve sending packets with different flags set to a range of ports on a target system.

Network Mapping

Network mapping involves identifying the devices connected to a network and their relationships with each other. This helps in creating a map of the network topology.

Vulnerability Scanning

Vulnerability scanning involves using automated tools to scan a network for known vulnerabilities. These tools can identify vulnerabilities in operating systems, applications, and network devices.

Ethical hackers use scanning techniques to identify potential vulnerabilities in a network. By identifying these vulnerabilities, they can help organizations improve their security posture and protect against cyber attacks.

Take quiz (4 questions)

Previous unit

Footprinting and Reconnaissance

Next unit

Enumeration

All courses were automatically generated using OpenAI's GPT-3. Your feedback helps us improve as we cannot manually review every course. Thank you!