7.4

Table Of Contents
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If the DEM Worker is behind a firewall, HTTPS traffic must be allowed to and from aws.amazon.com
as well as the URLs for EC2 regions that your AWS accounts have access to, such as ec2.us-
east-1.amazonaws.com for the US East region.
Each URL resolves to a range of IP addresses, so you might need to use a tool, such as the one
available from the Network Solutions Web site, to list and configure these IP addresses.
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If the DEM Worker reaches the Internet through a proxy server, the DEM service must be running
under credentials that can authenticate to the proxy server.
DEM Workers with Openstack or PowerVC
A vRealize Automation IaaS DEM Worker that communicates with and collects data from Openstack or
PowerVC must meet additional requirements, in addition to those for all IaaS Windows servers and DEMs
in general.
Table 28. DEM Worker Openstack and PowerVC Requirements
Your Installation Requirements
All In Windows Registry, enable TLS v1.2 support for .NET framework. For example:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001
Windows 2008 DEM Host In Windows Registry, enable TLS v1.2 protocol. For example:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHAN
NEL\Protocols\TLS 1.2]
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHAN
NEL\Protocols\TLS 1.2\Client]
"DisabledByDefault"=dword:00000000
"Enabled"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHAN
NEL\Protocols\TLS 1.2\Server]
"DisabledByDefault"=dword:00000000
"Enabled"=dword:00000001
Self-signed certificates on your
infrastructure endpoint host
If your PowerVC or Openstack instance is not using trusted certificates, import the SSL certificate
from your PowerVC or Openstack instance into the Trusted Root Certificate Authorities store on
each IaaS Windows server where you intend to install a vRealize Automation DEM.
DEM Workers with Red Hat Enterprise Virtualization
A vRealize Automation IaaS DEM Worker that communicates with and collects data from Red Hat
Enterprise Virtualization (RHEV) must meet additional requirements, in addition to those for all IaaS
Windows servers and DEMs in general.
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You must join each RHEV environment to the domain containing the DEM Worker server.
Installing vRealize Automation
VMware, Inc. 29