Red Hat System Administration I

Instructions

1. Use the ssh command to log in to the servera system as the student user. Use the sudo -i command to switch to the root user.

   [student@workstation ~]$ ssh student@servera
   ...output omitted...
   [student@servera ~]$ sudo -i
   [sudo] password for student: student
   [root@servera ~]#

2. Configure the software repositories on servera to obtain custom packages and updates from the following URL:

   • Custom packages at http://content.example.com/rhel9.0/x86_64/rhcsa-practice/rht

   • Updates of the custom packages at http://content.example.com/rhel9.0/x86_64/rhcsa-practice/errata

   1. Use the dnf config-manager command to add the custom packages repository.

      [root@servera ~]# dnf config-manager \
      --add-repo "http://content.example.com/rhel9.0/x86_64/rhcsa-practice/rht"
      Adding repo from: http://content.example.com/rhel9.0/x86_64/rhcsa-practice/rht

   2. Examine the software repository file that the previous command created in the /etc/yum.repos.d directory. Use the vim command to edit the file, and add the gpgcheck=0 parameter to disable the GPG key check for the repository.

      [root@servera ~]# vim \
      /etc/yum.repos.d/content.example.com_rhel9.0_x86_64_rhcsa-practice_rht.repo
      [content.example.com_rhel9.0_x86_64_rhcsa-practice_rht]
      name=created by dnf config-manager from http://content.example.com/rhel9.0/x86_64/rhcsa-practice/rht
      baseurl=http://content.example.com/rhel9.0/x86_64/rhcsa-practice/rht
      enabled=1
      gpgcheck=0

   3. Create the /etc/yum.repos.d/errata.repo file to enable the updates repository with the following content:

      [rht-updates]
      name=rht updates
      baseurl=http://content.example.com/rhel9.0/x86_64/rhcsa-practice/errata
      enabled=1
      gpgcheck=0

   4. Use the dnf repolist all command to list all repositories on the system.

      [root@servera ~]# dnf repolist all
      repo id                                                repo name       status
      content.example.com_rhel9.0_x86_64_rhcsa-practice_rht  created by .... enabled
      ...output omitted...
      rht-updates                                            rht updates     enabled

3. Disable the rht-updates software repository and install the rht-system package.

   1. Use the dnf config-manager --disable command to disable the rht-updates repository.

      [root@servera ~]# dnf config-manager --disable rht-updates

   2. List, and then install, the rht-system package.

      [root@servera ~]# dnf list rht-system
      Available Packages
      rht-system.noarch  1.0.0-1 content.example.com_rhel9.0_x86_64_rhcsa-practice_rht
      [root@servera ~]# dnf install rht-system
      Dependencies resolved.
      ================================================================================
       Package            Arch           Version                Repository       Size
      ================================================================================
      Installing:
       rht-system         noarch         1.0.0-1               content..._rht   3.7 k
      ...output omitted...
      Is this ok [y/N]: y
      ...output omitted...
      Installed:
        rht-system-1.0.0-1.noarch
      Complete!

   3. Verify that the rht-system package is installed, and note the version number of the package.

      [root@servera ~]# dnf list rht-system
      Installed Packages
      rht-system.noarch  1.0.0-1 @content.example.com_rhel9.0_x86_64_rhcsa-practice_rht

4. Enable the rht-updates software repository and update all relevant software packages.

   1. Use dnf config-manager --enable to enable the rht-updates repository.

      [root@servera ~]# dnf config-manager --enable rht-updates

   2. Use the dnf update command to update all software packages on servera.

      [root@servera ~]# dnf update
      Dependencies resolved.
      ================================================================================
       Package            Arch           Version                Repository       Size
      ================================================================================
      Upgrading:
       rht-system         noarch         1.0.0-2                rht-updates      7.5 k
      ...output omitted...
      Is this ok [y/N]: y
      ...output omitted...
      Complete!

   3. Verify that the rht-system package is upgraded, and note the version number of the package.

      [root@servera ~]# dnf list rht-system
      Installed Packages
      rht-system.noarch                      1.0.0-2              @rht-updates

5. Exit from servera.

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