Access your CloudSimple Private Cloud environment from on-premises

A connection can be set up from your on-premises network to CloudSimple using Azure ExpressRoute or Site-to-Site VPN. Access your CloudSimple Private Cloud vCenter and any workloads you run on the Private Cloud using the connection. You can control what ports are opened on the connection using a firewall in your on-premises network. This article discusses some of the typical applications port requirements. For any other applications, refer to the application documentation for port requirements.

Ports required for accessing vCenter

To access your Private Cloud vCenter and NSX-T manager, ports defined in the table below must be opened on the on-premises firewall.

Port Source Destination Purpose
53 (UDP) On-premises DNS servers Private Cloud DNS servers Required for forwarding DNS lookup of az.cloudsimple.io to Private Cloud DNS servers from on-premises network.
53 (UDP) Private Cloud DNS servers On-premises DNS servers Required for forwarding DNS look up of on-premises domain names from Private Cloud vCenter to on-premises DNS servers.
80 (TCP) On-premises network Private Cloud management network Required for redirecting vCenter URL from http to https.
443 (TCP) On-premises network Private Cloud management network Required for accessing vCenter and NSX-T manager from on-premises network.
8000 (TCP) On-premises network Private Cloud management network Required for vMotion of virtual machines from on-premises to Private Cloud.
8000 (TCP) Private Cloud management network On-premises network Required for vMotion of virtual machines from Private Cloud to on-premises.

Ports required for using on-premises active directory as an identity source

To configure on-premises active directory as an identity source on Private Cloud vCenter, ports defined in the table must be opened. See Use Azure AD as an identity provider for vCenter on CloudSimple Private Cloud for configuration steps.

Port Source Destination Purpose
53 (UDP) Private Cloud DNS servers On-premises DNS servers Required for forwarding DNS look up of on-premises active directory domain names from Private Cloud vCenter to on-premises DNS servers.
389 (TCP/UDP) Private Cloud management network On-premises active directory domain controllers Required for LDAP communication from Private Cloud vCenter server to active directory domain controllers for user authentication.
636 (TCP) Private Cloud management network On-premises active directory domain controllers Required for secure LDAP (LDAPS) communication from Private Cloud vCenter server to active directory domain controllers for user authentication.
3268 (TCP) Private Cloud management network On-premises active directory global catalog servers Required for LDAP communication in a multi-domain controller deployments.
3269 (TCP) Private Cloud management network On-premises active directory global catalog servers Required for LDAPS communication in a multi-domain controller deployments.

Common ports required for accessing workload virtual machines

Access workload virtual machines running on Private Cloud requires ports to be opened on your on-premises firewall. Table below shows some of the common ports required and their purpose. For any application specific port requirements, refer to the application documentation.

Port Source Destination Purpose
22 (TCP) On-premises network Private Cloud workload network Secure shell access to Linux virtual machines running on Private Cloud.
3389 (TCP) On-premises network Private Cloud workload network Remote desktop to windows virtual machines running on Private Cloud.
80 (TCP) On-premises network Private Cloud workload network Access any web servers deployed on virtual machines running on Private Cloud.
443 (TCP) On-premises network Private Cloud workload network Access any secure web servers deployed on virtual machines running on Private Cloud.
389 (TCP/UDP) Private Cloud workload network On-premises active directory network Join Windows workload virtual machines to on-premises active directory domain.
53 (UDP) Private Cloud workload network On-premises network DNS service access for workload virtual machines to on-premises DNS servers.

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