6.5. Summary
Logging is a valuable addition to almost all appliances, even those with limited disk, memory, and CPU power. An ideal logging system has many sources and destinations for log messages and allows for the addition of new sources and destinations.
There are two components to syslog, the default logging system on Linux: a library routine to send log messages, and a daemon to process them. The syslog() library routine is available in every major programming language available on Linux. The syslog daemon, syslogd, routes messages based on the source of the message (the facility) and on the severity of the event reported (the log level). In this chapter, you learned how to add your own facility to syslog in order to route log messages specific ...
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