December 2003
Intermediate to advanced
458 pages
9h 3m
English
book
Deploying Linux on IBM eServer pSeries Clusters
by Dino Quintero, Prabhakar Attaluri, Tomas Baublys, Xinghong He, Chin Yau Lee, Francois Thomas
Content preview from Deploying Linux on IBM eServer pSeries Clusters
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4.2. System logs
System logs are critical components of an operating system that allow us to track and debug errors. They also provide more in-depth information about system performance and behavior.
4.2.1. Linux syslog
The system logging utility that we use in Linux is called “syslog”. The syslog bundled inside Linux is derived from BSD sources and is bundled natively into the operating system. It is turned on by default on Linux. This tool allows you to trap kernel messages and capture system messages, with capabilities to customize the level of criticality that you choose to capture.
Syslog provides two daemons as part of the package, syslogd and klogd. The syslogd daemon provides the system logging facilities, and klogd provides the kernel ...