cURL Configuration for the Proxy

This article addresses configuration of cURL and libcurl for the proxy. cURL (Client URL Library) is used in command lines or scripts to transfer data with URLs. The current version is 7.65.0 (May 2019). libcurl is a client-side URL transfer library.

ProxyMesh supports configuration of the Proxy Host with Basic Authentication as well as IP address authentication. With the latter, you don't need to use a username and password

cURL supports HTTP and HTTPS, among other protocols. The libcurl library provides a cross-platform C library with bindings for many languages and frameworks commonly used in proxy operations, including Java, .NET, NodeJS, PHP, and Python. Some scripting languages, such as PHP, also include the cURL library.

Information and Downloads

For a summary of cURL, click here. This site also provides links to source code: Click Download, then select "Browse Source.".

To get cURL source code directly, click here.

Environment Variable

If you have set the http_proxy environment variable, cURL will recognize it. On a Unix or Linux system, this might look like

export http_proxy=http://USERNAME:PASSWORD@PROXYHOST:PORT

If the variable is not set, you can also do the following:

curl -x http://PROXYHOST:PORT -U USERNAME:PASSWORD http://example.com

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