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Simon Richter
Asked: 2020-04-28 05:56:40 +0800 CST

Logging source IP for connection through SNI proxy

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I'm using a simple SNI proxy (slt) to forward HTTPS to the correct virtual machine without terminating SSL in the proxy.

Something that is glaringly obvious in hindsight: there is no way for me to find out and log the source IP address of that connection, as the proxy cannot add an X-Forwarded-For header. Is there an equivalent mechanism in SSL that would allow the proxy to indicate that the connection was forwarded?

ssl https sni

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