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57 lines
1.8 KiB
ReStructuredText
57 lines
1.8 KiB
ReStructuredText
=========================================
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nginx: TLS Authentication & Authorization
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=========================================
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.. Warning::
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Even if this is probably the most secure way to authenticate,
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a lot of clients do not support it. In addition, configuring
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client certificates can also be hard to do for users.
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This authentication mechanism is recommended for machine to
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machine communication and experienced users.
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Background Information
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======================
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TLS authentication happens when the HTTPS connection is set up and for
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this reason you can not configure it per directory (this information has
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not been received yet). If you want to use this authentication type in
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a custom application, the nginx plugin configures nginx to send you
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the required information like the CN).
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Configuration
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=============
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First of all, you need a CA, a client and a server certificate.
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Please create it like described in :doc:`sslvpn_client`. If you want,
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that your VPN users can log into your application using the same certificate,
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you may use the same CA.
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.. image:: images/nginx_auth_tls.png
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Next, choose the CA, the certificate and choose *on* as for client validation.
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This will reject any connection by a client, who has no valid certificate.
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Testing
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=======
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.. code-block:: none
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curl https://192.168.1.1:444/file.txt --cacert ../MyOPNsenseCA.crt
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<html>
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<head><title>400 No required SSL certificate was sent</title></head>
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<body bgcolor="white">
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<center><h1>400 Bad Request</h1></center>
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<center>No required SSL certificate was sent</center>
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<hr><center>nginx</center>
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</body>
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</html>
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.. code-block:: none
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curl https://192.168.1.1:444/file.txt --cert ../nginx_client_test_cert.crt --key ../nginx_client_test_cert.key --cacert ../MyOPNsenseCA.crt
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Hello World
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