Wget
From KlavoWiki
If your Linux server is behind a proxy server you will need to tell the WGET configuration file that it needs to use a proxy server.
Edit the file below.
/etc/wgetrc
http_proxy = http://proxy.yoyodyne.com:18023/ ftp_proxy = http://proxy.yoyodyne.com:18023/
and don't forget to set:
use_proxy = on
Make sure you have a look at the page bashrc