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cURL Auth, TLS, and Proxy Security/Tunnel through an HTTP proxy

Use CONNECT tunneling for non-HTTP protocols when needed.

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Section: Proxy Auth and Tunnels

Tunnel through an HTTP proxy

bash
bash
curl --proxytunnel -x http://proxy.example.com:8080 ftp://example.com/file.txt
Explanation

CONNECT tunnels are not limited to HTTPS workflows.

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