a:2:{s:7:"current";a:5:{s:8:"internal";a:2:{s:5:"cache";b:1;s:3:"toc";b:1;}s:11:"description";a:1:{s:8:"abstract";s:399:"Add the following lines to your environment: 

export http_proxy="http://192.168.1.1:3128"
export ftp_proxy="http://192.168.1.1:3128"

Now, start wget with some enhanced options: 

wget --proxy-user "Domain\JohnUser" --proxy-passwd "SooooSecret" http://download.ubuntu.com/ubuntu.iso

You can create an alias to save that configuration, although it may be a security risk to save a passwd inside it:";}s:4:"date";a:1:{s:7:"created";i:1184708299;}s:7:"creator";s:6:"Thomas";s:11:"last_change";a:7:{s:4:"date";i:1184708299;s:2:"ip";s:14:"172.30.255.178";s:4:"type";s:1:"C";s:2:"id";s:11:"howtos:wget";s:4:"user";s:7:"domingo";s:3:"sum";s:7:"created";s:5:"extra";s:0:"";}}s:10:"persistent";a:3:{s:4:"date";a:1:{s:7:"created";i:1184708299;}s:7:"creator";s:6:"Thomas";s:11:"last_change";a:7:{s:4:"date";i:1184708299;s:2:"ip";s:14:"172.30.255.178";s:4:"type";s:1:"C";s:2:"id";s:11:"howtos:wget";s:4:"user";s:7:"domingo";s:3:"sum";s:7:"created";s:5:"extra";s:0:"";}}}