Proxy Settings - Enviroment Variables

Proxy can be set up using environment variables automatically for all users by creating the following file,

/etc/profile.d/proxyenv.sh

http_proxy="192.168.36.204:8080"
https_proxy="192.168.36.204:8080"
ftp_proxy="192.168.36.204:8080"

export http_proxy, https_proxy, ftp_proxy

If you are using csh instead of bash then create the following file,

/etc/profile.d/proxyenv.csh

setenv http_proxy="192.168.36.204:8080"
setenv https_proxy="192.168.36.204:8080"
setenv ftp_proxy="192.168.36.204:8080"

Reference: Unofficial ISS Linux Web Pages