10.7. How to fetch files from behind a firewall

If you are sitting behind a firewall which does not allow direct connections to Internet hosts (i.e. non-NAT), you may specify the relevant proxy hosts. This is done using an environment variable in the form of a URL e.g. if the machine www-proxy.myisp.com is one of the firewalls, and it uses port 80 as the proxy port number, the proxy environment variables look like:

	ftp_proxy=ftp://www-proxy.myisp.com:80/
	http_proxy=http://www-proxy.myisp.com:80/