CEH Practical Guide
  • Certified Ethical Hacker (CEH v12 and CEH V13) Practical Guide: Complete Study Resources & Tips
  • Module 2. Footprinting and Reconnaissance
    • 1. Footprinting through Search Engines
    • 2. Perform Footprinting Through Internet Research Services
    • 3. Footprinting through Social Networking sites
    • 4. Website Footprinting
    • 5. WHOIS Footprinting
    • 6. DNS Footprinting
    • 7. Network footprinting
    • 8. Email Footprinting
    • 9. Footprinting using footprinting tools
    • 10. Perform Footprinting using AI
  • Module 3. Scanning Networks
    • 1. Host Discovery
    • 2. Port and Service Discovery
    • 3. Perform OS Discovery
    • 4. Scan beyond Firewalls and IDS
    • 5. Network scanning using various tools
    • 6. Perform Network Scanning using AI
  • Module 4. Enumeration
    • 1. Netbios Enumeration (Port 137)
    • 2. SNMP Enumeration (Port 161,162)
    • 3. LDAP Enumeration (Port 389)
    • 4. NFS Enumeration
    • 5. DNS Enumeration
    • 6. SMTP Enumeration
    • 7. RPC, SMB and FTP Enumeration
    • 8. Enumeration using various tools
    • 9. Perform Enumeration using AI
  • Module 5. Vulnerability Assessment
    • 1. Perform Vulnerability Research with Vulnerability Scoring Systems and Databases
    • 2. Perform Vulnerability Assessment using Various Vulnerability Assessment Tools
    • 3. Perform Vulnerability Analysis using AI
  • Module 6. System Hacking
    • 1. Gain access to the system
    • 2. Privilege Escalation
    • 3. Maintain Remote Access and Hide Malicious Activities
    • 4. Clear Logs to hide the Evidence of Compromise
    • 5. Active Directory (AD) Attacks
  • Module 7. Malware Threats
    • 1. Gain access to systems with Trojans
    • 2. Infect the system using Virus
    • 3. Perform Static Malware Analysis
    • 4. Perform Dynamic Malware Analysis
  • Module 8. Sniffing
    • 1. Perform Active Sniffing
    • 2. Perform Network Sniffing using Various Sniffing Tools
    • 3. Detect Network Sniffing
  • Module 9. Social Engineering
    • 1. Perform Social Engineering using tools
    • 2. Detect a Phishing attack
    • 3. Audit Organization security for phishing attacks
    • 4. Social Engineering using AI
  • Module 10. Denial of Service
    • 1. Perform DOS and DDOS with various techniques
    • 2. Detect and Protect DOS and DDOS attacks
  • Module 11. Session Hijacking
    • 1. Perform Session Hijacking
    • 2. Detect Session Hijacking
  • Module 12. Evading IDS, antivirus and Honeypots
    • 1. Intrusion Detection using various tools
    • 2. Evade Firewall using Evasion Techniques
  • Module 13. Hacking Web Servers
    • 1. Footprint the Webserver
    • 2. Perform Webserver attacks
    • 3. Perform a Web Server Hacking using AI
  • Module 14. Hacking Web Applications
    • 1. Footprint the Web Infrastructure
    • 2. Perform Web applications Attacks
    • 3. Detect Web Vulnerabilities using using web application security tools
    • 4. Perform Web Application Hacking using AI
  • Module 15. SQL Injection
    • 1. Perform SQL Injection attacks
    • 2. Detect SQL Vulnerabilities using different tool
    • 3. Perform SQL Injection using AI
  • Module 16. Hacking Wireless Networks
    • 1. Footprint a wireless Network
    • 2. Perform Wireless Traffic Analysis
    • 3. Perform Wireless Attacks
  • Module 17. Hacking Mobile Platforms
    • 1. Hack Android Devices
    • 2. Secure Android Device
  • Module 18. IoT and OT Hacking
    • 1. Footprinting IoT and OT devices
    • 2. Capture and Analyze IoT traffic
    • 3. Perform IoT Attacks
  • Module 19. Cloud Computing
    • 1. Perform Reconnaissance on Azure
    • 2. S3 Bucket Enumeration
    • 3. Exploit S3 buckets
    • 4. Perform Privilege Escalation to Gain Higher Privileges
    • 5. Perform Vulnerability Assessment on Docker Images
  • Module 20. Cryptography
    • 1. Encrypt the Information using Various Cryptography Tools
    • 2. Create a self signed Certificate
    • 3. Perform Disk Encryption
    • 4. Cryptanalysis Using different tools
    • 5. Perform Cryptography using AI
  • Tips for exams
  • Additional Resources
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On this page
  • 1. Netdiscover
  • 2. Host discovery using nmap
  • 2. Angry IP Scanner

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  1. Module 3. Scanning Networks

1. Host Discovery

PreviousModule 3. Scanning NetworksNext2. Port and Service Discovery

Last updated 6 months ago

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These exercises are as per the modules. better tools are

  • arpscan

  • netdiscover

1. Netdiscover

netdiscover -i (network interface name) (example: eth0 or tun0)
netdiscover -i eth0
netdiscover -r 10.10.10.0/24

2. Host discovery using nmap

nmap -sn -PR 192.168.18.110

-sn disables port scan

-PR arp scan. sends ARP probes

sudo nmap -sn -PU 192.168.18.110   //UDP ping scan
nmap -sn -PE 192.168.18.1-255   //ICMP Echo scan
nmap -sn -PM 192.168.18.1-255    //Mask Ping scan (use if ICMP is blocked)
nmap -sn -PP 192.168.18.1-255    //ICMP timestamp scan
nmap -sn -PS 192.168.18.1-255    //tcp syn ping scan
nmap -sn -PO 192.168.18.1-255     //IP protocol scan.use different protocols to test the connectivity

  • ICMP Address Mask Ping Scan: This technique is an alternative for the traditional ICMP ECHO ping scan, which are used to determine whether the target host is live specifically when administrators block the ICMP ECHO pings.

    # nmap -sn -PM [target IP address]

  • TCP SYN Ping Scan: This technique sends empty TCP SYN packets to the target host, ACK response means that the host is active.

    # nmap -sn -PS [target IP address]

  • TCP ACK Ping Scan: This technique sends empty TCP ACK packets to the target host; an RST response means that the host is active.

    # nmap -sn -PA [target IP address]

  • IP Protocol Ping Scan: This technique sends different probe packets of different IP protocols to the target host, any response from any probe indicates that a host is active.

    # nmap -sn -PO [target IP address]

2. Angry IP Scanner

You can change settings to change pinging method to UDP+TCP. In display tab, change to display only live hosts.

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