Dell PowerProtect Cyber Recovery 19.13 Installation Guide

External TCP ports

Several external TCP ports on the management host must be reserved for use by the Cyber Recovery software.

The following table lists the required and optional external network ports that Cyber Recovery functions require.

NOTE: The table includes generalized recommendations that are based on standard ports and services. Your environment might use non-standard ports.

Table 1. Network portsThis table lists the TCP ports, indicating if they are required, the associated service, and the direction.
Ports	Protocols	Purpose	Description	Direction	Required
22	TCP	SSH	Provides bi-directional communication between the SSH client and the remote systems in the Cyber Recovery vault.	Inbound	Yes
25	TCP	Notifications	Used for SMTP email notifications about alerts and events.	Outbound	Optional
111	TCP	NFS Client	Used to perform NFS mounts between the DD system and the Cyber Recovery management host.	Bi-directional	Yes
123	UDP	NTP	Controls the time synchronization of Cyber Recovery to another reference time source.	Bi-directional	No
14777	TCP	Nginx	Provides web browsers with HTTPS access to the Cyber Recovery UI.	Inbound	Yes
14778	TCP	REST API	Provides the HTTPS connection for the user and UI REST interface.	Inbound	Yes
14780	TCP	Swagger	Provides access to the Cyber Recovery REST API documentation.	Inbound	Optional
2049	TCP	NFS Client	Used to perform NFS mounts between the DD system and the Cyber Recovery management host.	Bi-directional	Yes
2052	TCP	NFS Client	Used to mount to the DD system.	Bi-directional	Yes

NOTE: If you use NFSv4 on your DD system, ensure that the NFSv4 ID Map Out Numeric option is set to always.