VMware 4817V62 Administration Guide - Page 50

vSphere Basic System Administration Terminate Active Sessions Terminating an active session ends the vSphere Client session and any remote console connections launched by the user during that session. Procedure 1 On the Home page of a vSphere Client connected to a vCenter Server system, click the Sessions button. 2 Right-click a session and select Terminate. 3 To confirm the termination, click OK. Send a Message to All Active Users You can a Message of the Day to all active session user and new users when they log into the vSphere Client. The Message of the day text is sent as a notice message to all active session users and to new users when they log in. Procedure 1 On the Home page of a vSphere Client connected to a vCenter Server system, click the Sessions button. 2 Type a message in the Message of the day field. 3 Click Change. SNMP and vSphere Simple Network Management Protocol (SNMP) allows management programs to monitor and control a variety of networked devices. Managed systems run SNMP agents, which can provide information to a management program in at least one of the following ways: n In response to a GET operation, which is a specific request for information from the management system. n By sending a trap, which is an alert sent by the SNMP agent to notify the management system of a particular event or condition. Management Information Base (MIB) files define the information that can be provided by managed devices. The MIB files contain object identifiers (OIDs) and variables arranged in a hierarchy. vCenter Server and ESX/ESXi have SNMP agents. The agent provided with each product has differing capabilities. Using SNMP Traps with vCenter Server The SNMP agent included with vCenter Server can be used to send traps when the vCenter Server system is started and when an alarm is triggered on vCenter Server. The vCenter Server SNMP agent functions only as a trap emitter, and does not support other SNMP operations, such as GET. The traps sent by vCenter Server are typically sent to other management programs. You must configure your management server to interpret the SNMP traps sent by vCenter Server. To use the vCenter Server SNMP traps, configure the SNMP settings on vCenter Server and configure your management client software to accept the traps from vCenter Server. The traps sent by vCenter Server are defined in VMWARE-VC-EVENT-MIB.mib. See "VMWARE-VC-EVENTMIB," on page 62. 50 VMware, Inc.