使用 Google Colab 连接到 Jupyter 笔记本时出现“Forbidden”错误

Question

因此，我尝试按照 Google 的说明将 Google Colab 链接到安装在我的 linux (ubuntu) 计算机上的 Jupyter 笔记本：https://research.google.com/colaboratory/local-runtimes.html

笔记本服务器启动正常，但是当通过 Google Colab 连接到它时，连接失败，并收到“禁止”错误。

(base) my_user@sysmain:~$ jupyter notebook --NotebookApp.allow_origin='https://colab.research.google.com' --port=8888 --NotebookApp.port_retries=0 --no-browser
jupyter_http_over_ws extension initialized. Listening on /http_over_websocket
[I 23:01:03.636 NotebookApp] JupyterLab extension loaded from /home/my_user/miniconda3/lib/python3.8/site-packages/jupyterlab
[I 23:01:03.636 NotebookApp] JupyterLab application directory is /home/my_user/miniconda3/share/jupyter/lab
[I 23:01:03.638 NotebookApp] Serving notebooks from local directory: /home/my_user
[I 23:01:03.638 NotebookApp] Jupyter Notebook 6.1.3 is running at:
[I 23:01:03.638 NotebookApp] http://localhost:8888/
[I 23:01:03.638 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[I 23:01:20.212 NotebookApp] 302 GET / (127.0.0.1) 0.68ms
[I 23:01:20.214 NotebookApp] 302 GET /tree (127.0.0.1) 0.45ms
[W 23:01:20.240 NotebookApp] Forbidden
[W 23:01:20.240 NotebookApp] 403 GET /api/kernelspecs (127.0.0.1) 0.56ms referer=None
[I 23:01:22.273 NotebookApp] 302 GET / (127.0.0.1) 0.29ms
[I 23:01:22.274 NotebookApp] 302 GET /tree (127.0.0.1) 0.40ms
[W 23:01:22.278 NotebookApp] Forbidden
[W 23:01:22.278 NotebookApp] 403 GET /api/kernelspecs (127.0.0.1) 0.48ms referer=None

之前有过关于此主题的帖子（https://github.com/googlecolab/colabtools/issues/162）但是添加 --no-browser 并没有解决问题，正如你可以通过命令我看到的放入。

感谢您的帮助！

Answer 1

我在 ~/.jupyter/jupyter_notebook_config.py 中配置 jupyter 进行密码身份验证后遇到了这个问题。注释掉这些行

c.NotebookApp.password
c.NotebookApp.password_required

关闭密码并导致 Jupyter 使用基于令牌的身份验证。或者，如果您添加这样的行

c.NotebookApp.token = 'yourTokenValue'

然后你可以通过 http://localhost:PORT/?token=yourTokenValue 进行连接

Answer 2

注意您复制到 Google Colab 中“本地连接设置”的 URL。当您在本地运行 jupyter Notebook 时，会打印如下输出：

[I 15:23:07.292 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 15:23:07.296 NotebookApp]

    To access the notebook, open this file in a browser:
        file:///Users/<your-username>/Library/Jupyter/runtime/nbserver-56791-open.html
    Or copy and paste one of these URLs:
        http://localhost:8888/?token=xyz....xyz
     or http://127.0.0.1:8888/?token=xyz....xyz

您应该复制此处显示的“准确”网址，即：

http://localhost:8888/?token=xyz....xyz

其实这里的

token

是负责认证的，这样你就不会再收到

403

了。

Answer 3

我通过运行

jupyter-lab

而不是

jupyter lab

解决了这个问题