master-server/deps/curl/docs/cmdline-opts/proxy.md

c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Long: proxy Short: x Arg: [protocol://]host[:port] Help: Use this proxy Category: proxy Added: 4.0 Multi: single See-also: - socks5 - proxy-basic Example: - --proxy http://proxy.example $URL

--proxy

Use the specified proxy.

The proxy string can be specified with a protocol:// prefix. No protocol specified or http:// it is treated as an HTTP proxy. Use socks4://, socks4a://, socks5:// or socks5h:// to request a specific SOCKS version to be used. (Added in 7.21.7)

Unix domain sockets are supported for socks proxy. Set localhost for the host part. e.g. socks5h://localhost/path/to/socket.sock

HTTPS proxy support works set with the https:// protocol prefix for OpenSSL and GnuTLS (added in 7.52.0). It also works for BearSSL, mbedTLS, rustls, Schannel, Secure Transport and wolfSSL (added in 7.87.0).

Unrecognized and unsupported proxy protocols cause an error (added in 7.52.0). Ancient curl versions ignored unknown schemes and used http:// instead.

If the port number is not specified in the proxy string, it is assumed to be 1080.

This option overrides existing environment variables that set the proxy to use. If there is an environment variable setting a proxy, you can set proxy to "" to override it.

All operations that are performed over an HTTP proxy are transparently converted to HTTP. It means that certain protocol specific operations might not be available. This is not the case if you can tunnel through the proxy, as one with the --proxytunnel option.

User and password that might be provided in the proxy string are URL decoded by curl. This allows you to pass in special characters such as @ by using %40 or pass in a colon with %3a.

The proxy host can be specified the same way as the proxy environment variables, including the protocol prefix (http://) and the embedded user + password.

When a proxy is used, the active FTP mode as set with --ftp-port, cannot be used.