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Home/ Blog/ How to configure a proxy for the Linux command line and some common tools

How to configure a proxy for the Linux command line and some common tools

Author:PYPROXY
2024-05-22 15:30:52

How to configure a proxy for the Linux command line and some common tools

Setting up proxies for Linux command line and various commonly used tools can be a crucial task for many users. Proxies are used to route network traffic through a specific server, which can be helpful for various reasons such as accessing geo-blocked content, enhancing security, or bypassing network restrictions. In this blog post, we will explore how to configure proxies for the Linux command line and some commonly used tools.


1. Setting up proxies for the Linux command line:

The Linux command line can be configured to use a proxy by setting the environment variables `http_proxy` and `https_proxy`. These variables specify the proxy server to use for HTTP and HTTPS traffic, respectively. To set these variables, you can use the following commands:

```bash

export http_proxy=http://proxy_server:port

export https_proxy=http://proxy_server:port

```

Replace `proxy_server` with the address of your proxy server and `port` with the port number it listens on. You can also specify a username and password if your proxy server requires authentication:

```bash

export http_proxy=http://username:password@proxy_server:port

export https_proxy=http://username:password@proxy_server:port

```

Once these environment variables are set, any command-line tool that uses HTTP or HTTPS will automatically route its traffic through the specified proxy server.


2. Proxies for commonly used tools:

Many commonly used tools on Linux also support proxy configurations. Here are some examples of how to set up proxies for a few popular tools:

- **Git**: You can configure Git to use a proxy by setting the `http.proxy` and `https.proxy` variables in your Git configuration:

```bash

git config --global http.proxy http://proxy_server:port

git config --global https.proxy http://proxy_server:port

```

- **Wget**: Wget is a command-line tool for downloading files from the web. You can configure Wget to use a proxy by setting the `http_proxy` environment variable or using the `--proxy` option:

```bash

export http_proxy=http://proxy_server:port

wget --proxy=on http://example.com/file.zip

```

- **Curl**: Curl is another command-line tool for transferring data with URLs. You can set up a proxy for Curl using the `--proxy` option:

```bash

curl --proxy http://proxy_server:port http://example.com/file.zip -o file.zip

```


3. System-wide proxy settings:

If you want to set up a system-wide proxy for all users on a Linux system, you can configure the proxy settings in the network configuration files. The location of these files may vary depending on the Linux distribution you are using, but commonly used locations include `/etc/environment`, `/etc/profile`, or files in the `/etc/profile.d/` directory.

For example, in Ubuntu, you can edit the `/etc/environment` file and add the following lines to set system-wide proxy settings:

```plaintext

http_proxy=http://proxy_server:port

https_proxy=http://proxy_server:port

```

After making these changes, you may need to restart your system or network services for the new proxy settings to take effect.


In conclusion, setting up proxies for the Linux command line and commonly used tools involves configuring environment variables, tool-specific configurations, and system-wide settings. By following the guidelines provided in this blog post, users can effectively route their network traffic through proxies for various purposes such as privacy, security, and access to restricted content.