In this chapter, you learned about logs and how to configure rsyslog for centralized logging. Using various rsyslog input and output plugins, you transmitted server logs over the network to the consolidated rsyslog server. Your rsyslog server is now the only location you need to look for logs.
We also provided examples of how to read systemd journal logs. The
journalctl command is a powerful resource for diagnosing issues with Linux services and finding problems in the OS.
Finally, you learned about the power of the
dmesg command and how it can be used.
dmesg is a powerful tool that can help you troubleshoot system problems and monitor system events in Linux.
In the next chapter, we will talk about centralized authentication, where you can use a single server for all your clients to authenticate against.