What is system log (syslog)?
The system log (syslog) contains a record of operating system events that indicate how the system processes and drivers were loaded. The syslog shows information, error and warning events related to the computer operating system.
By reviewing the data in the log, an administrator or user troubleshooting the system can determine the cause of a problem or determine whether the system processes load successfully.
The operating system maintains an event log that helps monitor, manage, and troubleshoot the system and helps users get information about important processes. Some of the events include system errors, warnings, startup messages, system changes, abnormal shutdowns, etc. This list applies to most versions of the three major operating systems (Windows, Linux and Mac OS).
The recorded events are the significant occurrences in the operating system that require notification to the user. The log contains information about the software, hardware, system processes and system components. It also indicates whether the processes loaded successfully or not. The information can then be used to diagnose the sources of computer problems, while the alerts can be used to predict possible system problems and problems.
The syslog has standard components that can vary depending on the operating system. However, there are common components and information that are collected regardless of the operating system.
All entries are classified by type, e.g. B. Errors, information, warning, success check and error check for Windows systems as well as emergency, warning, criticism, error, warning, information, information and debug functions for Mac OS and Linux systems.
Each syslog entry contains header information and a description of the events. The latter includes the date and time of occurrence of the events, the logged on user name and the computer name at the time of the event. It also contains the Event ID number, which is used to identify the event and the source of the event, e.g. B. the name of the system component.
The syslog is displayed using built-in utilities such as the Windows Event Viewer. In addition to viewing, the Event Viewer is also used to manage file size, save or archive the log file, delete old events, and set overwrite options. Other options include finding or filtering events and restoring the log to its default settings.