logwatch8

Usage

Overview

Logwatch is a customizable, pluggable log-monitoring system. It will go through your logs for a given period of time and make a report in the areas that you wish with the detail that you wish. Logwatch is being used for Linux and many types of UNIX.

Options

--detail level

This is the detail level of the report. level can be a positive integer, or high, med, low, which correspond to the integers 10, 5, and 0, respectively.

--logfile log-file-group

This will force Logwatch to process only the set of logfiles defined by log-file-group (i.e. messages, xferlog, ...). Logwatch will therefore process all services that use those logfiles. This option can be specified more than once to specify multiple logfile-groups.

--service service-name

This will force Logwatch to process only the service specified in service-name (i.e. login, pam, identd, ...). Logwatch will therefore also process any log-file-groups necessary to process these services. This option can be specified more than once to specify multiple services to process. A useful service-name is All which will process all services (and logfile-groups) for which you have filters installed.

--mailto address

Mail the results to the email address or user specified in address.

--range range

You can specify a date-range to process. Common ranges are Yesterday, Today, All, and Help. Additional options are listed when invoked with the Help parameter.

--noarchives

Each log-file-group has basic logfiles (i.e. /var/log/messages) as well as archives (i.e. /var/log/messages.? or /var/log/messages.?.gz). By default, Logwatch will search through the archives in addition to the regular logfiles. For values of --range other than "all", Logwatch will search the appropriate archived logs. If "--noarchives" is specified, Logwatch will not search the archived logs for any value of "--range"

--debug level

For debugging purposes. level typically ranges in value from 0 to 100. This will clutter up your output, so you probably only want to use this when debugging. Values of 100 or more will retain the temporary files (by default, created under /var/cache/logwatch, unless specified as tmpdir in the logwatch.conf file).

--filename file-name

Save the output to file-name instead of displaying or mailing it.

--logdir directory

Look in directory for log subdirectories or log files first before looking in the default directories.

--hostlimit host1,host2

Limit report to hostname - host1, host2.

--hostname hostname

Use hostname for the reports instead of this system's hostname. In addition, if HostLimit is set in the logwatch.conf configuration file (see MORE INFORMATION, below), then only logs from this hostname will be processed (where appropriate).

--html_wrap num-characters

Number of characters that html output should be wrapped to. Default is 80.

--hostformat split

Use split approach when formatting report for multiple hosts - none [default], split, splitmail.

--output output-type

Report using output-type - stdout [default], mail, file.

--format format

Format report using format - text [default], html.

--subject email-subject

Customize the email subject sent by Logwatch. Option --output must be set to mail.

--encode encoding

Encode report using encoding - none [default], base64, 7bit, 8bit [same as 'none'].

--numeric

Inhibits additional name lookups, displaying IP addresses numerically.

--usage

Displays usage information

--help

same as --usage.

Files

/usr/share/logwatch/

This directory contains all the perl executables and configuration files shipped with the logwatch distribution.

/etc/logwatch

This directory contains local configuration files that override the default configuration. See MORE INFORMATION below for more information.

Examples

logwatch --service ftpd-xferlog --range all --detail high

logwatch --service pam_pwdb --range yesterday --detail high

More information

The directory /usr/share/doc/logwatch-* contains several files with additional documentation:

HOWTO-Customize-LogWatch

LICENSE

README