Using Curl with a Proxy Server

What is cURL?

CURL, short for “Client URL,” is a widely employed command-line tool and library utilized for transferring data to and from servers through diverse network protocols. This tool is compatible with numerous operating systems, including Windows, macOS, and Linux.

The versatility of CURL lies in its ability to support a wide range of protocols, encompassing HTTP, HTTPS, FTP, FTPS, SCP, SFTP, TFTP, LDAP, POP3, IMAP, SMTP, and more. Through CURL, users can execute diverse operations like making HTTP requests, downloading and uploading files, sending form data, managing cookies, handling authentication, and more. It provides a comprehensive set of options and parameters to customize requests and handle various scenarios.

CURL can be effortlessly employed via the command line, where users can execute the “curl” command followed by desired options and parameters. Additionally, CURL can be utilized as a library in different programming languages such as C, C++, Java, Python, and others. This facilitates developers in integrating CURL’s functionality into their own applications.

To summarize, CURL stands as a robust and extensively adopted tool for server interaction and data transfer across various network protocols.

Using cURL with HTTP/HTTPS/SOCKS5 proxy

Here are the available protocols for our proxies :

  • Mobile proxies have both protocols available (HTTP/S and SOCKS5)
  • Residential proxies have only HTTP/S

When using cURL with an HTTP/HTTPS/SOCKS5 proxy, you can specify the proxy server’s details and configure cURL to route your requests through the proxy. Here’s an example of how you can use cURL with an HTTP/HTTPS proxy for proxies that do not require authentication such as our mobile proxies:

curl --proxy "http://proxy-server-ip:proxy-port" "http://example.com"

or

curl -x "http://proxy-server-ip:proxy-port"  "http://example.com"

For HTTPS or SOCKS5 protocols you just need to replace in the code syntax accordingly.

If the proxy requires authentication, such as our residential proxies, you can include the username and password using the following format:

curl -x "http://user:pwd@proxy-server:proxy-port" "http://example.com"

or

curl --proxy "http://user:pwd@proxy-server:proxy-port" "http://example.com"

so by using our residential proxies setup it will look like this:

curl -x "http://user:pwd@isp2.hydraproxy.com:9989" "http://example.com"

or

curl --proxy "http://user:[email protected]:9989" "http://example.com"

If you need help placing an order please click here: https://hydraproxy.com/how-to-order/

Configure cURL to use a proxy permanently

If you want a proxy for curl but not for other programs, this can be achieved by creating a curl config file.

Linux and MacOS might already have a .curlrc file. On Windows, the file is named _curlrc. This file can be placed in the %APPDATA% directory. If there is none, just create a new file and add the following line:

proxy="http://user:[email protected]:9989" 

for our residential proxies or

proxy="http://proxy-server-ip:proxy-port"

for our mobile proxies that do not require authentication.


Save the file. Now curl with proxy is ready to be used. Simply run curl normally and it will read the proxy from .curlrc file.

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