Network ports

Administrative ports

Some administrative ports are required to configure お使いの GitHub Enterprise Server インスタンス and run certain features. Administrative ports are not required for basic application use by end users.

Port	Service	Description
8443	HTTPS	Secure web-based [Management Console]. Required for basic installation and configuration.
8080	HTTP	Plain-text web-based [Management Console]. Not required unless TLS is disabled manually.
122	SSH	Shell access for お使いの GitHub Enterprise Server インスタンス. Required to be open to incoming connections between all nodes in a high availability configuration. The default SSH port (22) is dedicated to Git and SSH application network traffic.
1194/UDP	VPN	Secure replication network tunnel in high availability configuration. Required to be open for communication between all nodes in the configuration.
123/UDP	NTP	Required for time protocol operation.
161/UDP	SNMP	Required for network monitoring protocol operation.
9103/TCP	HTTP	Required for future support of Prometheus scraping.

Application ports for end users

Application ports provide web application and Git access for end users.

Port	Service	Description
443	HTTPS	Access to the web application and Git over HTTPS.
80	HTTP	Access to the web application. All requests are redirected to the HTTPS port if TLS is configured.
22	SSH	Access to Git over SSH. Supports clone, fetch, and push operations to public and private repositories.
9418	Git	Git protocol port supports clone and fetch operations to public repositories with unencrypted network communication. インスタンスでプライベートモードを有効化した場合、このポートをオープンする必要があるのは、匿名Git読み取りアクセスも有効化している場合のみです。 詳しくは、「Enforcing repository management policies in your enterprise」を参照してください。

Email ports

Email ports must be accessible directly or via relay for inbound email support for end users.

Port	Service	Description
25	SMTP	Support for SMTP with encryption (STARTTLS).

GitHub Actions ports

GitHub Actions ports must be accessible for self-hosted runners to connect to お使いの GitHub Enterprise Server インスタンス. For more information, see "セルフホステッド ランナーの概要."

Port	Service	Description
443	HTTPS	Self-hosted runners connect to お使いの GitHub Enterprise Server インスタンス to receive job assignments and to download new versions of the runner application. Required if TLS is configured.
80	HTTP	Self-hosted runners connect to お使いの GitHub Enterprise Server インスタンス to receive job assignments and to download new versions of the runner application. Required if TLS is not configured.

If you enable automatic access to GitHub.com actions, GitHub Actions will always search for an action on お使いの GitHub Enterprise Server インスタンス first, via these ports, before checking GitHub.com. For more information, see "Enabling automatic access to GitHub.com actions using GitHub Connect."

GitHub Connect ports

If you enable GitHub Connect, the connection between GitHub Enterprise Server and GitHub.com uses HTTPS over ports 443 or 80, and TLS is required. For more information, see "About GitHub Connect."

Further reading

• "Configuring TLS"