Configuring systemd Journaling

Journals and their importance to `systemd` are a major change from the previous model of Linux logging, namely `Syslog` and its variants. As even the format of the logs or journal has changed, this is a true disruptor, or it could have been if the `systemd` team hadn't put in some key migration and integration features—such as forwarding to `syslog` and the excellent `journalctl` command, which we'll use heavily in this lab. In this lab, you'll gain the skills needed with `journalctl`: * From simple querying to viewing boot session entries * Monitoring a service, user's entries by UID, times, and ranges of entries * Extending your journal entries with standardized explanations from the Message Catalog.