Trend Micro ScanMail for Microsoft Exchange Getting Started Guide

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Introducing Trend Micro Control Manager Control Manager server's perspective, each product instance that goes through the formal registration process is regarded as an independent managed unit and each managed unit is no different from another. Through MCP, Control Manager supports cluster nodes. Control Manager Agent Heartbeat To monitor the status of ScanMail for Microsoft Exchange servers, Control Manager agents poll Control Manager based on a schedule. Polling occurs to indicate the status of the ScanMail for Microsoft Exchange server and to check for commands to the ScanMail for Microsoft Exchange server from Control Manager. The Control Manager product console then presents the product status. This means that the ScanMail for Microsoft Exchange server status is not a real-time, moment-by-moment reflection of the network’s status. Control Manager checks the status of each ScanMail for Microsoft Exchange server in a sequential manner in the background. Control Manager changes the status of ScanMail for Microsoft Exchange servers to offline, when a fixed period of time elapses without a heartbeat from the ScanMail for Microsoft Exchange server. Active heartbeats are not the only means Control Manager has for determining the status of ScanMail for Microsoft Exchange servers. The following also provide Control Manager with the ScanMail for Microsoft Exchange server status: Control Manager receives logs from the ScanMail for Microsoft Exchange server. Once Control Manager receives any type of log from the ScanMail for Microsoft Exchange server successfully, this implies that the ScanMail for Microsoft Exchange server is working fine. In two-way communication mode, Control Manager actively sends out a notification message to trigger the ScanMail for Microsoft Exchange server to retrieve the pending command. If server connects to the ScanMail for Microsoft Exchange server successfully, it also indicates that the product is working fine and this event will be counted as a heartbeat. In one-way communication mode, the Control Manager agent periodically sends out query commands to Control Manager. This periodical query behavior works like a heartbeat and is treated as such by Control Manager. The Control Manager agent heartbeats implement with the following ways: C-7
Trend Micro ScanMail for Microsoft Exchange Getting Started Guide C-8 UDP: If the product can reach the server using UDP, this is the most lightweight, fastest solution available. However, this does not work in NAT or firewall environments. Also the transmitting client cannot make sure that the server does indeed receive the request. HTTP/HTTPS: To work under a NAT or firewall environment, a heavyweight HTTP connection can be used to transport the heartbeat Control Manager supports both UDP and HTTP/HTTPS mechanisms to report heartbeats. Control Manager server finds out which mode the ScanMail for Microsoft Exchange server applies during the registration process. A separate protocol handshake occurs between both parties to determine the mode. Aside from simply sending the heartbeat to indicate the product status, additional data can upload to Control Manager along with the heartbeat. The data usually contains ScanMail for Microsoft Exchange server activity information to display on the console. Using the Schedule Bar Use the schedule bar in the Communicator Scheduler screen to display and set Communicator schedules. The bar has 24 slots, each representing the hours in a day. Blue slots denote Working status or the hours that the Communicator sends information to the Control Manager server. White slots indicate Idle time. Define Working or Idle hours by toggling specific slots. You can specify at most three consecutive periods of inactivity. The sample schedule bar below shows only two inactive hours: The active periods specified by the bar are from 0:00 A.M. to 7:00 A.M, 8:00 A.M to 3:00 PM, and from 6:00 P.M. to 12:00 P.M. Determining the Right Heartbeat Setting When choosing a heartbeat setting, balance between the need to display the latest Communicator status information and the need to manage system resources. Trend
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Trend Micro ScanMail for Microsoft Exchange Getting Started Guide

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