Network+/Troubleshooting/Security Issues

This lesson covers security issues.

Objectives and Skills

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Objectives and skills for the security issues portion of Network+ certification include:[1]

  • Given a scenario, troubleshoot and resolve common security issues
    • Misconfigured firewall
    • Misconfigured ACLs/applications
    • Malware
    • Denial of service
    • Open/closed ports
    • ICMP related issues
      • Ping of death
      • Unreachable default gateway
    • Unpatched firmware/OSs
    • Malicious users
      • Trusted
      • Untrusted users
      • Packet sniffing
    • Authentication issues
      • TACACS/RADIUS misconfigurations
      • Default passwords/settings
    • Improper access/backdoor access
    • ARP issues
    • Banner grabbing/OUI
    • Domain/local group configurations
    • Jamming

Readings

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Multimedia

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  1. Watch YouTube: Troubleshooting Firewall Security Issues - CompTIA Network+ N10-006 - 4.7.
  2. Watch YouTube: Troubleshooting Operating System Security Issues - CompTIA Network+ N10-006 - 4.7.
  3. Watch YouTube: Troubleshooting Denial of Service - CompTIA Network+ N10-006 - 4.7.
  4. Watch YouTube: Troubleshooting ICMP and ARP - CompTIA Network+ N10-006 - 4.7.
  5. Watch YouTube: Troubleshooting Malicious User Activities - CompTIA Network+ N10-006 - 4.7.
  6. Watch YouTube: Troubleshooting Authentication Issues - CompTIA Network+ N10-006 - 4.7.

Activities

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References

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