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CompTIA® Linux+ / LPIC-1 Cert Guide: (Exams LX0-103 & LX0-104/101-400 & 102-400) by Sean Walberg, Ross Brunson

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systemd and syslog

Linux has two different logging systems: syslog and systemd’s journal. syslog is a standardized system that can receive messages from local applications or remote servers and write them to disk or send to another server. It is ubiquitous such that many network enabled appliances generate syslog messages. The systemd journal is a newer form of logging for distributions that have moved to systemd. Fortunately, it is backward compatible so that applications that can log to syslog can also log to systemd, and it can also forward messages to a syslog server for centralized logging.

Applications that use systemd’s version of logging can also log the additional metadata tracked by the journal. For example, the name of the method and ...

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