6.5.1

Set Up SNMP Traps
You can set up Simple Network Management Protocol (SNMP) traps to receive SNMP notications for your
vCenter HA cluster.
The traps default to SNMP version 1.
Set up SNMP traps for the Active node and the Passive node. You tell the agent where to send related traps,
by adding a target entry to the snmpd conguration.
Procedure
1 Log in to the Active node by using the Virtual Machine Console or SSH.
2 Run the vicfg-snmp command, for example:
vicfg-snmp -t 10.160.1.1@1166/public
In this example, 10.160.1.1 is the client listening address, 1166 is the client listening port, and public is
the community string.
3 Enable the SNMP agent (snmpd) by running the following command.
vicfg-snmp -e
What to do next
You also might nd these commands useful.
n
To view the complete help for the command, run vicfg-snmp -h.
n
To disable the SNMP agent, run vicfg-snmp -D.
n
To show the SNMP agent's conguration, run vicfg-snmp -s.
n
To reset the conguration to the default, run vicfg-snmp -r.
Set Up Your Environment to Use Custom Certificates
The machine SSL certicate on each node is used for cluster management communication and for
encryption of replication trac. If you want to use custom certicates, you have to remove the vCenter HA
conguration, delete the Passive and Witness nodes, provision the Active node with the custom certicate,
and recongure the cluster.
If possible, replace certicates in the vCenter Server Appliance that will become the Active node before you
clone the node.
Procedure
1 Edit the cluster conguration and select Remove.
2 Delete the Passive node and the Witness node.
3 On the Active node, which is now a standalone vCenter Server Appliance, replace the machine SSL
Certicate with a custom certicate.
See the Platform Services Controller Administration documentation.
4 Recongure the cluster.
Chapter 4 vCenter High Availability
VMware, Inc. 69