linux

Append the following function to: /etc/profile and modify the variable: proxy to fit your requirements:

#!/bin/bash
###########################################################################################
#
# Author:		ccztux
#			http://www.linuxinside.at
#			2011-12-28
#
# Last Modification:	ccztux
#			http://www.linuxinside.at
#			2013-02-11
#
# Description:		Find out public IP.
#
# Changelog:		1.0 Initial revision
#			1.1 Bugfix: chkRC
#			1.2 Verbose output added
#			1.3 whatismyip.org-address changed
#			1.4 changed whatismyip.org to ifconfig.me
#			1.5 script reworked, chkInetConn added
#
# License GPLv3+:	GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
#