If communications between Managers and Agents (including Proxy Managers) is restricted, such as in Internet environments, the "Pull" method can be used instead of the "Push" method, as shown in the figure above.
For communications using the "Pull" method, an HTTP environment must be created where the Agents (and Proxy Managers) are located, using either of the following methods:
Using the functions provided by this product
This method uses the thttpd service that is provided as a standard part of this product's Agent and Proxy Manager functions. Any desired port number can be set as the port number for this service. (The default is 23440.)
Note
The thttpd service does not start by default, and so it must be started in order to perform communications using the "Pull" method.
The thttpd service is used in the policy distribution function as well. It must be started when executing the policy definition information distribution command or the policy remote operation command.
Refer to "Starting and Stopping Resident Processes" in the Reference Guide for the method used to start the thttpd service or daemon.
Using a general http service
This method uses a general http service, such as Apache, by defining a dedicated alias for this product.
Note
Communication occurs using the Push method when a Manager operates in a two-level configuration.
Communication using the Pull method is driven by the Manager at regular intervals (of approximately 10 minutes). This means that it can take up to 20 minutes until information appears in the summary window.
To send data between V11 or V12 Agents and V13 or later Managers via "Pull" communications, install V13 or later Proxy Managers between them.
Refer to "2.2 Relay model using Proxy Managers" for details on relay Proxy Managers.
From V13 Agents cannot connect to V11 or V12 Managers using "Pull" communications.
See
Refer to "Pull Type Communication Settings" in the Installation Guide for details on communication using the Pull method.
Refer to "Setting Up the Communication Environment" in the Installation Guide for details on the communication environment.
Refer to "Policy Distribution" in the User's Guide for details on policy distribution.
