Logwatch project is a customizable log analysis system.
Logwatch parses through your system's logs for a given period of time and creates a report analyzing areas that you specify, in as much detail as you require.
Logwatch is easy to use and will work right out of the package on most systems.
Logwatch can be, and has been, used on many variants of the Linux and UNIX systems. Some distributions that include Logwatch modify the default configuration to comply with the settings of said distributions. Therefore, most people will not need to make any modifications to Logwatch.
However, Logwatch, starting with version 7.0, implements a mechanism to allow modifying the local system easier. These modifications may be needed either because the configuration of the service that writes to the system log has been altered from its default, or because the Logwatch user prefers what is reported or how it is reported by Logwatch to be different.
You can customize the output of logwatch by modifying variables in the /etc/logwatch/conf directory.
Default values are specified in the /usr/share/logwatch/default.conf directory. Your distribution may have set additional defaults in the /usr/share/logwatch/dist.conf directory. All the variables available are declared in the files under these directories. You can change the default values to modify how or what is displayed with logwatch.
One variable available to all services, and which by default is not specified, is the 'Detail' variable (note that it is not preceded by a '$' symbol). Specifying a Detail value will override the global Detail level, for that service only.
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