Use proxy to access the Internet on the Linux command line interface

In Linux, setting proxy to access the Internet only requires setting a user variable, which is very simple. There are several proxy methods:

Proxy Method	Variable name
HTTP Proxy	Http_proxy
HTTPS Security Proxy	Https_proxy
FTP Proxy	Ftp_proxy
No proxy IP	No_proxy

To set proxy, follow these steps:
[Inbi @ Debian ~] # Export http_proxy = itwhy: 123456@proxy.itwhy.org: 8080
# Http_proxy: indicates that HTTP proxy is used.
# Itwhy: the username used by the proxy #123456: password!
# Proxy.itwhy.org: proxy address, which can be an IP address or a domain name #8080: port used
# If you need to be permanently valid, you need to write the above command into the file! For example:
[Inbi @ Debian ~] # Echo "Export http_proxy = proxy.itwhy.org: 8888"> ~ /. Profile

For a single applicationProgramSet proxy
This is not a big deal. Let's take an example! Next I will set the lftp program Proxy:
[Inbi @ Debian ~] # Echo "Export http_proxy = proxy.itwhy.org: 8888"> ~ /. Lftp
# Haha. Open lftp again to download it!

Socks proxy-tsocks
[Inbi @ Debian ~] # Aptitude install tsocks
# Modify the configuration file as follows.
[Inbi @ Debian ~] # Vim/etc/tsocks. conf
Local = 192.168.1.0/255.255.255.0
# Local indicates the local network, that is, the network without the socks proxy
Server = 202.13.96.25
# SOCKS Server IP Address
Server_type = 5
# SOCKS service version
Server_port = 9999
# SOCKS service port
Tsocks usage:
[Inbi @ Debian ~] # Tsocks lftp
# Force lftp to connect to the network through socks proxy