27 lines
2.0 KiB
Markdown
27 lines
2.0 KiB
Markdown
---
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title: Troubleshooting port forwarding for GitHub Codespaces
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intro: Troubleshooting steps for common port forwarding issues.
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versions:
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fpt: '*'
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ghec: '*'
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type: reference
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topics:
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- Codespaces
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shortTitle: Port forwarding
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redirect_from:
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- /codespaces/troubleshooting/troubleshooting-port-forwarding-for-codespaces
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---
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When an application running inside a codespace outputs a port to the console, {% data variables.product.prodname_github_codespaces %} detects the localhost URL pattern and automatically forwards the port. For more information, see [AUTOTITLE](/codespaces/developing-in-a-codespace/forwarding-ports-in-your-codespace).
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If a port is not automatically forwarded, you can forward it manually. For more information, see [AUTOTITLE](/codespaces/developing-in-a-codespace/forwarding-ports-in-your-codespace#forwarding-a-port).
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If port forwarding is set up, check the following:
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* Use the link in the notification "toast" message, that pops up in the bottom right corner of {% data variables.product.prodname_vscode_shortname %}, or click the URL in Terminal, to open the forwarded port. Typing in `localhost:8000` (as an example) to your local machine will not work if you're connected to the codespace via the browser.
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* Make sure to check that your application is still running from within your codespace. If your codespace has stopped after a period of inactivity, you'll need to ensure to restart your application once the codespace has restarted.
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Typically, you can make a forwarded port accessible publicly, or within the organization that owns a repository. For more information, see [AUTOTITLE](/codespaces/developing-in-a-codespace/forwarding-ports-in-your-codespace). If either, or both, of the options for public or organization visibility are not available, this indicates that an organization-level policy has been configured. For more information, see [AUTOTITLE](/codespaces/managing-codespaces-for-your-organization/restricting-the-visibility-of-forwarded-ports).
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{% data reusables.codespaces.forwarded-ports-environment-variable %}
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