RH124 - ch15s06

From workstation, run the lab fs-locate start command. The command runs a start script that determines whether the host, servera, is reachable on the network.

[student@workstation ~]$ lab fs-locate start

Use the ssh command to log in to servera as the student user.

[student@workstation ~]$ ssh student@servera
...output omitted...
[student@servera ~]$

Use the locate command to search files on servera.

Even though the locate database is updated automatically every day, make sure that the database is up-to-date by manually starting an update on servera. Use the sudo updatedb command to update the database used by the locate command.
```
[student@servera ~]$ sudo updatedb
[sudo] password for student: student
[student@servera ~]$ 
```

Locate the logrotate.conf configuration file.

[student@servera ~]$ locate logrotate.conf
/etc/logrotate.conf
/usr/share/man/man5/logrotate.conf.5.gz

Locate the networkmanager.conf configuration file, ignoring case.

[student@servera ~]$ locate -i networkmanager.conf
/etc/NetworkManager/NetworkManager.conf
/etc/dbus-1/system.d/org.freedesktop.NetworkManager.conf
/usr/share/man/man5/NetworkManager.conf.5.gz

Use the find command to perform real-time searches on servera according to the following requirements:
- Search all files in the /var/lib directory that are owned by the chrony user.
- List all files in the /var directory that are owned by root and the group owner is mail.
- List all files in the /usr/bin directory that has a file size greater than 50 KB.
- Search all files in the /home/student directory that have not been changed in the last 120 minutes.
- List all the block device files in the /dev directory.
1. Use the find command to search all files in the /var/lib directory those are owned by the chrony user. Use the sudo command as the files inside the /var/lib directory are owned by root.
```
[student@servera ~]$ sudo find /var/lib -user chrony
[sudo] password for student: student
/var/lib/chrony
/var/lib/chrony/drift
```
2. List all files in the /var directory that are owned by root and are affiliated with the mail group.
```
[student@servera ~]$ sudo find /var -user root -group mail
/var/spool/mail
```
3. List all files in the /usr/bin directory with a file size greater than 50 KB.
```
[student@servera ~]$ find /usr/bin -size +50k
/usr/bin/iconv
/usr/bin/locale
/usr/bin/localedef
/usr/bin/cmp
...output omitted...
```
4. Find all files in the /home/student directory that have not been changed in the last 120 minutes.
```
[student@servera ~]$ find /home/student -mmin +120
/home/student/.bash_logout
/home/student/.bash_profile
/home/student/.bashrc
...output omitted...
```
5. List all block device files in the /dev directory.
```
[student@servera ~]$ find /dev -type b
/dev/vdd
/dev/vdc
/dev/vdb
/dev/vda3
/dev/vda2
/dev/vda1
/dev/vda
```

Exit from servera.

[student@servera ~]$ exit
logout
Connection to servera closed.
[student@workstation]$

Finish

On workstation, run the lab fs-locate finish script to complete this exercise.

[student@workstation ~]$ lab fs-locate finish

This concludes the guided exercise.

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VictoriaB97

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Red Hat System Administration I (RH124)

Haley_Ruccio

19 lip 2023

The first of two courses covering the core system administration tasks needed to manage Red Hat Enterprise Linux serversRed Hat System Administration I (RH124) is designed for IT professionals without previous Linux system administration experience. The course provides students with Linux administration competence by focusing on core administration tasks. This course also provides a foundation for students who plan to become full-time Linux system administrators by introducing key command-line concepts and enterprise-level tools. This course is the first of a two-course series that takes a computer professional without Linux system administration knowledge to become a fully capable Linux administrator. These concepts are further developed in the follow-on course, Red Hat System Administration II (RH134).This course is based on Red Hat® Enterprise Linux 9.0.Course content summaryIntroduce Linux and the Red Hat Enterprise Linux ecosystem.Run commands and view shell environments.Manage, organize, and secure files.Manage users, groups and user security policies.Control and monitor systemd services.Configure remote access using the web console and SSH.Configure network interfaces and settings.Manage software using DNFAudience for this courseThe primary persona is a technical professional with current or pending responsibilities as a Linux enterprise or cloud system administrator.This course is popular in Red Hat Academy, and is targeted at the student who is planning to become a technical professional using Linux.Prerequisites for this courseBasic technical user skills with computer applications on some operating systems are expected.Take our free assessment to gauge whether this offering is the best fit for your skills.Technology considerationsThere are no special technical requirements for this course.This course is not designed for bring your own device (BYOD).Internet access is not required but is recommended so that students can research and browse Red Hat online resources.

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Revision: rh124-8.2-df5a585