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16 lines
839 B
HTML
16 lines
839 B
HTML
- command-line: _--upstream-cert_
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- mitmproxy shortcut: _o_, then _u_
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Normally, mitmproxy uses the target domain specified in a client's proxy
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request to generate an interception certificate. When __upstream-cert__ mode is
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activated a different procedure is followed: a connection is made to the
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specified remote server to retrieve its __Common Name__ and __Subject
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Alternative Names__. This feature is especially useful when the client
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specifies an IP address rather than a host name in the proxy request. If this
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is the case, we can only generate a certificate if we can establish the __CN__
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and __SANs__ from the upstream server.
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Note that __upstream-cert__ mode does not work when the remote server relies on
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[Server Name Indication](http://en.wikipedia.org/wiki/Server_Name_Indication).
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Luckily, SNI is still not very widely used.
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