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Labs

Managing SSH Access

In this lab, we will restrict SSH access to specific user accounts from specific sources. This will allow us to granularly control SSH access to a host. *This course is not approved or sponsored by Red Hat.*

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Published
Clock icon May 24, 2019

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Table of Contents

  1. Challenge

    Allow Susan SSH access from host susan-ws.office21.net

    1. Edit the /etc/ssh/sshd_config file with the following line:
    sudo vi /etc/ssh/sshd_config
    • enter password for cloud_user
    AllowUsers [email protected]

  2. Challenge

    Permit root SSH login from the subnet 10.0.1.0/24

    1. The first step is to permit root logins by removing the comment in front of the line #PermitRootLogin yes in the /etc/ssh/sshd_conf file.
    2. Secondly, we need to add [email protected]/24 to the AllowUsers line in the /etc/ssh/sshd_config file.
    3. Now we need to restart the sshd service so the changes we made will take affect:
    systemctl restart sshd
A Cloud Guru - Labs - Managing SSH Access
Author
A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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