- Lab
- A Cloud Guru
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.*
Path Info
Table of Contents
-
Challenge
Allow Susan SSH access from host susan-ws.office21.net
- 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]
- Edit the
-
Challenge
Permit root SSH login from the subnet 10.0.1.0/24
- 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. - Secondly, we need to add
[email protected]/24
to theAllowUsers
line in the/etc/ssh/sshd_config
file. - Now we need to restart the
sshd
service so the changes we made will take affect:
systemctl restart sshd
- The first step is to permit root logins by removing the comment in front of the line
What's a lab?
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.
Provided environment for hands-on practice
We will provide the credentials and environment necessary for you to practice right within your browser.
Guided walkthrough
Follow along with the author’s guided walkthrough and build something new in your provided environment!
Did you know?
On average, you retain 75% more of your learning if you get time for practice.