RH134 - ch01s04

On workstation, run the lab console-commands start command. The command runs a start script that determines if the servera and serverb hosts are reachable on the network. The script will alert you if they are not available.

[student@workstation ~]$ lab console-commands start

Use the ssh and hostname commands to print the host name of servera and serverb to standard output.

[student@workstation ~]$ ssh student@servera hostname
servera.lab.example.com
[student@workstation ~]$ ssh student@serverb hostname
serverb.lab.example.com

Create a for loop to perform the same task more efficiently.

[student@workstation ~]$ for HOST in servera serverb
do
ssh student@${HOST} hostname
done
servera.lab.example.com
serverb.lab.example.com

Create a shell script to execute the same for loop.

Create the /home/student/bin directory to contain the shell script.
```
[student@workstation ~]$ mkdir ~/bin
```

Verify that the newly created directory is in your PATH environmental variable.

[student@workstation ~]$ echo $PATH
/home/student/.local/bin:/home/student/bin::/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin

Create a shell script at /home/student/bin/printhostname.sh to perform the for loop. Use the cat command to verify the content of printhostname.sh.

[student@workstation ~]$ vim ~/bin/printhostname.sh
[student@workstation ~]$ cat ~/bin/printhostname.sh
#!/bin/bash
#Execute for loop to print server hostname.
for HOST in servera serverb
do
  ssh student@${HOST} hostname
done
exit 0

Ensure the newly created script is executable.

[student@workstation ~]$ chmod +x ~/bin/printhostname.sh

Run the script from your home directory.

[student@workstation ~]$ printhostname.sh
servera.lab.example.com
serverb.lab.example.com

Verify that the exit code of your script is 0.
```
[student@workstation ~]$ echo $?
0
```

Finish

On workstation, run the lab console-commands finish script to finish this exercise.

[student@workstation ~]$ lab console-commands finish

This concludes the guided exercise.

Discuss Red Hat System Administration II

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Is It possible to reset root password when the system is on multi-user.target?

jennifer1987

27 lip 2023

Hi thereWell, i have a question, Is It possible to reset root password when the system is on multi-user.target? I was not be able to found a foro o some information related with this and another question that I have, If the grub menu dont show up, is it posible to reset the root password?

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Red Hat System Administration II (RH134)

Haley_Ruccio

21 lip 2023

Build the skills to perform the key tasks needed to become a full-time Linux administratorRed Hat System Administration II (RH134) is the second part of the RHCSA training track for IT professionals who have already attended Red Hat System Administration I. The course goes deeper into core Linux system administration skills in storage configuration and management, installation and deployment of Red Hat Enterprise Linux, management of security features such as SELinux, control of recurring system tasks, management of the boot process and troubleshooting, basic system tuning, and command-line automation and productivity. This course assumes that students have attended Red Hat System Administration I (RH124).Experienced Linux administrators who seek rapid preparation for the RHCSA certification should instead start with RHCSA Rapid Track (RH199).This course is based on Red Hat Enterprise Linux 9.0.Course summaryInstall Red Hat Enterprise Linux using scalable methodsAccess security files, file systems, and networksExecute shell scripting and automation techniquesManage storage devices, logical volumes, and file systemsManage security and system accessControl the boot process and system servicesRun containersAudience for this courseThis course is geared toward Windows system administrators, network administrators, and other system administrators who are interested in supplementing current skills or backstopping other team members, in addition to Linux system administrators who are responsible for these tasks:Configuring, installing, upgrading, and maintaining Linux systems using established standards and proceduresProviding operational supportManaging systems for monitoring system performance and availabilityWriting and deploying scripts for task automation and system administrationRecommended trainingSuccessful completion of Red Hat System Administration I (RH124) is recommended.Experienced Linux administrators seeking to accelerate their path toward becoming a Red Hat Certified System Administrator should start with the RHCSA Rapid Track course (RH199).Take our free assessment to gauge whether this offering is the best fit for your skills.Technology considerationsThere are no special technology requirements.This course is not designed for bring your own device (BYOD).Internet access is not required, but is recommended to allow students to research and access Red Hat online resources.

Welcome to the Red Hat System Administration II (RH134) group in the Red Hat Learning Community!

Deanna

18 lip 2023

We are excited to launch a space dedicated to the Red Hat Training course Red Hat System Administration II! To gain the most value from this group - click the "Join Group" button in the upper right hand corner.We encourage group members to collaborate in this group to discuss topics, ask questions, share best practices and tips, provide course feedback, and share their accomplishments as it relates to RH134.Read more about Red Hat System Administration II here.

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Revision: rh134-8.2-f0a9756