# Port Requirements for Azure DevOps

The access node must have internet access to download the repos and metadata.

The following table contains network ports that must be opened for backing up Azure DevOps.

Environment | Source | Destination | Protocol | Ports | URLs to be added to allowlist if firewall is enabled
--- | --- | --- | --- | --- | ---
All regions | Proxy computer | Azure DevOps | HTTPS | 443 | dev.azure.com (only for repos) *.dev.azure.com (all services)
All regions | Proxy computer | Azure DevOps | HTTP | 80 | dev.azure.com (only for repos) *.dev.azure.com (all services)

For more information, go to the Azure Documentation website, Domain URLs to allow.

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