• Online, Self-Paced

Network services, such as DNS and DHCP, help business operations run smoothly. Explore common issues that occur with network services as well as how to resolve them, including incorrect gateways, duplicate IP addresses, and incorrect times.

Learning Objectives

Network Service Issues

  • start the course
  • correct issues relating to incorrect gateway or netmask
  • troubleshoot issues caused by duplicate IP and MAC addresses
  • troubleshoot issues where names are not resolving
  • troubleshoot issues caused by expired DHCP scopes and rogue DHCP servers
  • correct issues caused by expired ip addresses and incorrect system times
  • troubleshoot issues caused by untrusted SSL certificates and blocked tcp/udp ports
  • troubleshoot issues cause by incorrect firewall and acl settings
  • correct issues caused by hardware failures and unresponsive services

Practice: Troubleshoot Network Service Issues

  • troubleshoot network service issues

Framework Connections

The materials within this course focus on the NICE Framework Task, Knowledge, and Skill statements identified within the indicated NICE Framework component(s):

Specialty Areas

  • Cyber Defense Analysis
  • Network Services
  • Systems Administration
  • Technology R&D

Specialty Areas have been removed from the NICE Framework. With the recent release of the new NICE Framework data, updates to courses are underway. Until this course can be updated, this historical information is provided to give better context as to how it can help you with your cybersecurity goals.

Feedback

If you would like to provide feedback for this course, please e-mail the NICCS SO at NICCS@hq.dhs.gov.