I got 'wget' errors.
I have already setup the proxy in my Ubuntu to be:
http_proxy = http://10.0.x.x:port/
ftp_proxy = http://10.0.x.x:port/
But it still does not work. The reason is that Ubuntu does not look at the proxy setting when use wget.
Here is the solution:
Take a look at .wgetrc or /etc/wgetrc and define there your proxy server.