Troubleshoot Network Connectivity on Linux

15 minutes
  • 3 Learning Objectives

About this Hands-on Lab

There are a variety of tools available to test the connections between our servers, including `nc`, `ping`, `dig`, and others. In this lab, we’ll leverage these networking tools and others to discover what is preventing the connection between our MySQL server and client.

_This course is not approved or sponsored by Red Hat._

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Reproduce the Issue

Attempt to connect to the host from app server.

Discover the Source of the Issue

Use networking tools to discover where the connection fails.

Resolve the Issue

Resolve the issue by updating the firewall. Confirm that you can connect.

Additional Resources

While setting up a test database for a fledgling project, you discover you cannot connect from the MySQL client on the app server. Discover what is preventing the connection.

MySQL Server: MySQL User: remote MySQL Password:: astrongpass

This course is not approved or sponsored by Red Hat.

What are Hands-on Labs

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.

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