How to Set Up Proxy with Username/Password and Encode Special Characters in Linux

As a developer, you may occasionally need terminal access to external resources or set up a proxy for service testing.

This time, because of username and password authentication, after some searching I finally solved it and share the solution.

First, the general format for configuring a proxy:

export http_proxy=http://username:password@proxy_address:proxy_port
export https_proxy=https://username:password@proxy_address:proxy_port

If the password contains special characters (which is common), you need to convert those characters to their ASCII code form, represented as % + Hex (omit 0x).

For example:

# Assume:
# Proxy server domain: proxy.com
# Proxy port: 8080
# Username: testuser
# Password: password@123

# @ represented as ASCII code: 0x40, replace with %40

export http_proxy=http://testuser:password%[email protected]:8080
export https_proxy=https://testuser:password%[email protected]:8080

Common ASCII codes (others can be searched, e.g., http://ascii.911cha.com/):

@ – 0x40

: – 0x3A

~ – 0x7E

# – 0x23

$ – 0x24

% – 0x25

& – 0x26

This article is reprinted from: "Open Source China", original link: https://tinyurl.com/y4pj6q9b, copyright belongs to the original author.