Where can I find explanations/examples of Rule Actions?
How to use rule actions to send syslog messages?
What Rule Actions are available that will run on the monitored host?
You can find the definitions and examples of these in the Administration and Configuration guide here.
The only Rule Action that can execute on the Monitored Host is a "RemoteCommandAction"
Reference attached Word document for example of running a remote command.
Create a RemoteCommandAction and define the two mandatory parameters (COMMAND_LINE and Hostname):
COMMAND_LINE: logger System gone down for maintenance
(logger is the command which uses syslog protocol to write to /var/log/messages in Linux)
HostName: target hostname