8.6. Configuration of LogChecks

The SysOrb Agent can scan logfiles on the host machine, and report any error messages or unexpected event to the SysOrb Server, providing a quick overview of all machines on your network.

The files that the Agent can monitor this way must be specified in a configuration file on the machine running the SysOrb Agent. This is a safety measure, guarding agaist a compromised SysOrb Server being able to retrieve a copy of any file on the hosts running SysOrb Agents.

The name of the file containing the definitions of the allowed LogChecks is given in the Agent configuration option log_chk_conf (see Chapter 8 for more information). It is usually called log.conf, a sample file allowing a few system log files to be scanned is included in the SysOrb Agent package.

The file contains a number of lines that each specifies a path that is to be searched for log files to monitor. This can be a specific file path, such as C:\logs\error.log or /var/log/messages. But it can also contain the following special wildcard characters. '?' can match any character. '*' matches any character string of any length. '**' matches any directory path. Thus, the path C:\logs\log??\**\error.log matches C:\logs\log01\sub\dir\error.log and C:\logs\log02\sub\sub\dir\error.log, but not C:\logs\log002\sub\dir\error.log.

You can also specify to scan for eventlogs by setting the path o 'eventlog:*'. This will scan for all eventlogs available, but you can replace '*' with a specific event log name.

Note that for these logs to actually be monitored, you will have to configure them on the SysOrb server, setting up how often the check should be performed, along with various other parameters. (See the User's Guide for information on how to activate LogChecks.)

Example 8-9. LogCheck declaration file


This will allow the user to configure checks on the file /var/log/message, all virtual domain error logs in /var/log/apache/virtual-domain-*/error.log and all eventlogs.