使用 JupyterHub，您可以创建一个多用户 Hub，它可以生成、管理和代理单用户 Jupyter notebook 服务器的多个实例
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一个多用户的 Hub
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一个可配置的 http代理
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多个单用户 JupyterNotebook服务器
Four subsystems make up JupyterHub:
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a Hub (tornado process) that is the heart of JupyterHub
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a configurable http proxy (node-http-proxy) that receives the requests from the client’s browser
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multiple single-user Jupyter notebook servers (Python/IPython/tornado) that are monitored by Spawners
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an authentication class that manages how users can access the system
