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Troubleshoot Ansible Connectivity to Managed Hosts

In this lab, you'll practice how to troubleshoot common connectivity issues between an Ansible control node and managed hosts. When you're finished, you'll be able to quickly diagnose and resolve these common issues.

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Lab Info
Rating
(81)
Level
Beginner
Last updated
Feb 10, 2025
Duration
1h 15m

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Table of Contents
  1. Challenge

    Get Started in the Lab Environment

    Here are the initial instructions and explanation of the lab environment. Read this while your environment is busy creating itself from nothing. Yes, this violates physics; we know. How fun!

  2. Challenge

    Diagnose an Incorrect IPv4 Address

    To start this lab, you will observe the symptoms Ansible exhibits when attempting to connect to a managed host through an incorrect IPv4 address, and will then correct the issue.

  3. Challenge

    Fix SSH Running on Non-Default TCP Port

    You will diagnose and resolve a connectivity issue between the Ansible control node and a managed host resulting from the SSH server of the managed host running on a non-default TCP port.

  4. Challenge

    Address Firewall Rules Blocking SSH From Ansible Control Node

    In this challenge, you will fix a connectivity issue between the Ansible control node and a managed host resulting from firewall rules blocking SSH connections from the Ansible control node.

  5. Challenge

    Fix Incorrect Credentials

    You will detect and troubleshoot an authentication issue between the Ansible control node and a managed host resulting from incorrect credentials in Ansible's inventory file.

  6. Challenge

    Resolve an SSH Key Fingerprint Mismatch

    When key fingerprints do not match, connectivity between the control node and a managed host will fail. You will learn how to notice and correct this problem.

  7. Challenge

    Examine the Effects of Enabling Host Key Checking

    You will explore the effects of host key checking being enabled on the Ansible control node.

  8. Challenge

    Correct a Privilege Escalation Failure

    To finish up this lab, you will resolve an error resulting from incorrect privilege escalation credentials for a managed host in Ansible's inventory file.

  9. Challenge

    The Last Challenge

    Welcome to the final challenge! This is your last chance to experiment in the environment. Clicking Finish Lab will end this little world that flittered into existence just for you.

About the author

Christopher Hart is a Technical Consulting Engineer for Cisco specializing in enterprise and data center network solutions, Python, and network automation solutions.

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