https://blog.margrop.net/en/tag/debian/ Recent content in Debian on Margrop Blog Hugo en-US Wed, 15 Jul 2026 19:30:00 +0800 https://blog.margrop.net/en/post/docker-mirror-source-selection-guide/ Wed, 15 Jul 2026 19:30:00 +0800 https://blog.margrop.net/en/post/docker-mirror-source-selection-guide/ <blockquote> <p><strong>The short answer</strong></p> <p>When Docker image pulls fail on a mainland China network, the image is not necessarily missing and DNS is not always the culprit. More often, the public registry path is congested, a mirror is temporarily unavailable, or the configuration was edited but Docker was never restarted.</p> <p>My practical recommendation is simple: open <a href="https://status.anye.xyz/">status.anye.xyz</a> first and treat it as a “weather report” for Docker mirrors; select a recently healthy HTTPS endpoint; edit the correct daemon configuration for your operating system; validate the JSON; restart Docker; and finally verify with a real pull of a small image.</p>