Red Hat System Administration II

Instructions

1. From the workstation machine, log in to the servera machine as the student user.

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

2. As the superuser, confirm that the /var/log/journal directory does not exist. Use the ls command to list the /var/log/journal directory contents. Use the sudo command to elevate the student user privileges. If prompted, use the student password.

   [student@servera ~]$ sudo ls /var/log/journal
   [sudo] password for student: student
   ls: cannot access '/var/log/journal': No such file or directory

   Because the /var/log/journal directory does not exist, the systemd-journald service does not preserve the log data after a reboot.

3. Configure the systemd-journald service on the servera machine to preserve journals after a reboot.

   1. Create the /var/log/journal directory.

      [student@servera ~]$ sudo mkdir /var/log/journal

   2. Uncomment the Storage=auto line in the /etc/systemd/journald.conf file, and set the Storage parameter to the persistent value. You might use the sudo vim /etc/systemd/journald.conf command to edit the configuration file. You can type /Storage=auto in the vim editor command mode to search for the Storage=auto line.

      ...output omitted...
      [Journal]
      Storage=persistent
      ...output omitted...

   3. Restart the systemd-journald service to apply the configuration changes.

      [student@servera ~]$ sudo systemctl restart systemd-journald.service

4. Verify that the systemd-journald service on the servera machine preserves its journals so that they persist after a reboot.

   1. Restart the servera machine.

      [student@servera ~]$ sudo systemctl reboot
      Connection to servera closed by remote host.
      Connection to servera closed.
      [student@workstation ~]$

      The SSH connection terminates as soon as you restart the servera machine.

   2. Log in to the servera machine.

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

   3. Verify that a subdirectory with a long hexadecimal name exists in the /var/log/journal directory. You can find the journal files in that directory. The subdirectory name on your system might be different.

      [student@servera ~]$ sudo ls /var/log/journal
      [sudo] password for student: student
      63b272eae8d5443ca7aaa5593479b25f
      [student@servera ~]$ sudo ls /var/log/journal/63b272eae8d5443ca7aaa5593479b25f
      system.journal  user-1000.journal

   4. Return to the workstation system as the student user.

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