Appendix A: DGX OS Connectivity Requirements

Base OS - DGX OS 5

In a typical operation, DGX OS runs services to support typical usage of the DGX system.

Some of these services require network communication. The table below describes the port, protocol, direction, and communication purpose for the services. DGX administrators should consider their site-specific access needs and allow or disallow communication with the services as necessary.

This table provides information about the in-band management, storage, and compute networks.

Table 1. In-Band Management, Storage, and Compute Networks

Port (Protocol)

Direction

Use

22 (TCP)

Inbound

SSH

53 (UDP)

Outbound

DNS

80 (TCP)

Outbound

HTTP, package updates

111 (TCP)

Inbound/Outbound

RPCBIND, required by NFS

273 (TCP)

NVIDIA System Management Management

443 (TCP)

Outbound

For internet (HTTP/HTTPS) connection to NVIDIA GPU Cloud.

If port 443 is proxied through a corporate firewall, then WebSocket protocol traffic must be supported

1883 (TCP)

Mosquitto Database (used by NVIDIA System Management)

This table provides information about out-of-band management for your DGX system.

Table 2. Out-of-Band Management

Port (Protocol)

Direction

Use

443 (TCP)

Inbound

For BMC web services, remote console services, and CD-media service.

If port 443 is proxied through a corporate firewall, then WebSocket protocol traffic must be supported.

623 (UDP)

Inbound

IPMI

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