7.3

Table Of Contents
n
Enable the Distributed Transaction Coordinator (DTC) service. IaaS uses DTC for database
transactions and actions such as workflow creation.
Note If you clone a machine to make an IaaS Windows server, install DTC on the clone after
cloning. If you clone a machine that already has DTC, its unique identifier is copied to the clone,
which causes communication to fail. See Error in Manager Service Communication.
Also enable DTC on the server that hosts the SQL database, if it is separate from IaaS. For more
about DTC enablement, see VMware Knowledge Base article 2038943.
n
Verify that the Secondary Log On service is running. If desired, you may stop the service after
installation is complete.
IaaS Windows Server Ports
Ports on the IaaS Windows servers must be configured before vRealize Automation installation.
Open ports between all IaaS Windows servers according to the following tables. Include the server that
hosts the SQL database, if it is separate from IaaS. Alternatively, if site policies allow, you may disable
firewalls between IaaS Windows servers and SQL Server.
Table 24. Incoming Ports
Port Protocol Component Comments
443 TCP Manager Service Communication with IaaS components and vRealize Automation
appliance over HTTPS
443 TCP vRealize Automation
appliance
Communication with IaaS components and vRealize Automation
appliance over HTTPS
443 TCP Infrastructure Endpoint Hosts Communication with IaaS components and vRealize Automation
appliance over HTTPS. Typically, 443 is the default
communication port for virtual and cloud infrastructure endpoint
hosts, but refer to the documentation provided by your
infrastructure hosts for a full list of default and required ports
443 TCP Guest agent
Software bootstrap agent
Communication with Manager Service over HTTPS
443 TCP DEM Worker Communication with NSX Manager
1433 TCP SQL Server instance MSSQL
Table 25. Outgoing Ports
Port Protocol Component Comments
53 TCP, UDP All DNS
67, 68, 546,
547
TCP, UDP All DHCP
123 TCP, UDP All Optional. NTP
443 TCP Manager Service Communication with vRealize Automation appliance over
HTTPS
Installing vRealize Automation
VMware, Inc. 26