- Lab
-
Libraries: If you want this lab, consider one of these libraries.
- Cloud
DNS: DNS Querying
Name service queries are essential in retrieving information stored in DNS records. We will be using the tools in the `bind-utils` package to perform these requests. In this hands-on lab, we will perform name service queries using the `nslookup`, `host,` and `dig` commands.
Lab Info
Table of Contents
-
Challenge
Install the bind and bind-utils Packages with yum, Then Start and Enable the named Service
# yum install -y bind bind-utils# systemctl start named# systemctl enable named -
Challenge
Use the host Command to Display the Name Servers for the Domain, google.com
# host -t ns google.com -
Challenge
Use the host Command to Display the Mail Servers for google.com
# host -t mx google.com -
Challenge
Resolve the IP Address for ns4.google.com Using the nslookup Command
# nslookup ns4.google.com -
Challenge
Use the nslookup Command to List the Name Servers for google.com
# nslookup -type=ns google.com -
Challenge
Use the nslookup Command to List the Mail Servers Responsible for Mail Exchange for google.com
# nslookup -query=mx google.com -
Challenge
Use the Debug Mode for nslookup to Provide more Details for google.com
# nslookup -debug google.com -
Challenge
Use the dig Command to Resolve the IP for google.com
# dig google.com -
Challenge
Use the dig Command to List the Name Servers for google.com
# dig ns google.com -
Challenge
Using dig, List Only the 4 NS Records for google.com
# dig ns google.com +noall +answer
Real skill practice before real-world application
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.
Learn by doing
Engage hands-on with the tools and technologies you’re learning. You pick the skill, we provide the credentials and environment.
Follow your guide
All labs have detailed instructions and objectives, guiding you through the learning process and ensuring you understand every step.
Turn time into mastery
On average, you retain 75% more of your learning if you take time to practice. Hands-on labs set you up for success to make those skills stick.