Ports and Domains for Arcserve Cloud Storage and Arcserve Cloud Cyber Resilient Storage

To enable communication with Arcserve Cloud storage endpoints through a firewall, it is recommended to whitelist the appropriate Arcserve Cloud service domains and open the required network ports.

To ensure uninterrupted connectivity between your applications and Arcserve Cloud services, configure your firewall using the following settings:

• Open Communication Ports
• The following table lists the ports used by Arcserve Cloud Storage and Arcserve Cloud Cyber Resilient Storage:

Port Number	Port Type	Initiated by	Listening Process	Internal / External Port	Description
80	TCP	Arcserve UDP environment	Default HTTP	System port	Default port for unencrypted HTTP web traffic. Used for initial communication or redirects if HTTPS is not enforced. Allows Arcserve UDP to reach Arcserve Cloud endpoints over standard HTTP (fallback).
443	TCP	Arcserve UDP environment	Encrypted HTTPS	System port	Default port for encrypted HTTPS traffic. Provides security through SSL/TLS encryption. Enables secure API communication and data transfer between Arcserve UDP and Arcserve Cloud (ACS and ACCRS).

Notes:

• Arcserve Cloud Storage and Arcserve Cloud Cyber Resilient Storage do not require any custom ports. All communication occurs over standard HTTP/HTTPS (ports 80 and 443) using Arcserve REST APIs. After selecting Arcserve Cloud in the Arcserve UDP Console, configure the connection by providing your Access Key ID and Secret Access Key. This establishes secure API connections to your Arcserve Cloud buckets for storage and immutable backups.
• For details about additional ports used by the UDP Console, UDP Recovery Point Server (RPS), and Agent, see Components Installed on Microsoft Windows.
• Whitelist the following URLs and Arcserve Cloud Service Domains
• Add firewall rules to allow outbound traffic for the URLs listed below and the corresponding Arcserve Cloud Storage generic or region-specific service domains. Additionally, make sure to whitelist your corresponding public DNS URL (for example, *.cloudflare.net).
• https://api.storagecraft.com/v1
• s3.us-east-1.arcserve.com

Endpoint Type	Region	Endpoint URL
General Endpoint	N/A	s3.arcserve.com
Region-specific Endpoint	Tokyo	s3.ap-northeast-1.arcserve.com
	Singapore	s3.ap-southeast-1.arcserve.com
	Sydney	s3.ap-southeast-2.arcserve.com
	Frankfurt	s3.de-1.arcserve.com
	United Kingdom	s3.uk-1.arcserve.com
	Paris	s3.fr-1.arcserve.com
	North Virginia	s3.us-east-1.arcserve.com
	Texas	s3.us-central-1.arcserve.com
	Toronto	s3.ca-central-1.arcserve.com