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Network ports

Open network ports selectively based on the network services you need to expose for administrators, end users, and email support.

Administrative ports

Some administrative ports are required to configure 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.

PortServiceDescription
8443HTTPSSecure web-based Management Console. Required for basic installation and configuration.
8080HTTPPlain-text web-based Management Console. Not required unless TLS is disabled manually.
122SSHShell access for 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/UDPVPNSecure replication network tunnel in high availability configuration. Required to be open for communication between all nodes in the configuration.
123/UDPNTPRequired for time protocol operation.
161/UDPSNMPRequired for network monitoring protocol operation.

Application ports for end users

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

PortServiceDescription
443HTTPSAccess to the web application and Git over HTTPS.
80HTTPAccess to the web application. All requests are redirected to the HTTPS port if TLS is configured.
22SSHAccess to Git over SSH. Supports clone, fetch, and push operations to public and private repositories.
9418GitGit 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。 詳しい情報については、「Enterprise でリポジトリ管理ポリシーを適用する」を参照してください。

警告: HTTPS 接続をロードバランサでターミネートしている場合、ロードバランサからの GitHub Enterprise Server へのリクエストも HTTPS を使わなければなりません。 接続の HTTP へのダウングレードはサポートされません。

Email ports

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

PortServiceDescription
25SMTPSupport for SMTP with encryption (STARTTLS).

GitHub Actions ports

GitHub Actions ports must be accessible for self-hosted runners to connect to GitHub Enterprise Serverインスタンス. For more information, see "About self-hosted runners."

PortServiceDescription
443HTTPSSelf-hosted runners connect to 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.
80HTTPSelf-hosted runners connect to 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 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."

Further reading