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Downloads and transfers via web browsers
All accesses to the WWW from the school's labs and subnetworks must
go via our WWW/FTP proxies. These perform WWW transfers on behalf
of users and keep copies of all downloads for a short time in their
caches. Subsequent requesters of the same pages receive copies from
the caches, thus providing both faster response time for these users,
and reduced traffic costs for the school.
The school is charged different amounts for Internet traffic depending
on the source. Traffic coming from Australian sites is approximately 20%
cheaper than traffic coming from overseas.
Keeping the above in mind users are charged for transfers via the school's
proxies at the following "prices":
- Downloads which come from one of the caches are free. Ie. they
are not charged against your quota. So, if someone looks at a web page
before you and the copy in the cache is recent it isn't charged against
your quota,
- Downloads from sites within the university (ie. other schools or
the university's own web server) are also free,
- Downloading or browsing from sites in either the ".au"
or ".bigpond.com" domains are charged at 20% of "full price".
Similarly, domains containing ".au." are also charged at 20%. In
other words, if you download, for example, 10 megabytes from any of these
domains only 2 megabytes will be charged to your quota,
- Downloads from "mirror.aarnet.edu.au", "www.planetmirror.com"
or "ftp.planetmirror.com" cost 10% of full price,
- All other sites cost the full price. Ie. if you download 10 megabytes
you get 10 megabytes charged to your quota.
Other downloads and transfers
Downloads, tranfers and other connections which do not go through
either of the school's two proxies--including TELNET, FTP, IRC, RLOGIN,
SSH, X, etc.--are charged as follows:
- Downloads, transfers and connections within the university are
free,
- File downloads from 192.42.62.2 (mirror.aarnet.edu.au) and 203.16.234.19/203.16.234.20
(planetmirror.com) cost 10% of full price,
- All other transfers and connections outside of the university cost
full price.
Important notes
- If you are inclined to do large downloads of, say, Linux
distributions or other software packages, please look at our own mirror
(which costs you nothing) at "mirror.cse.unsw.edu.au" or at
the fairly cheap "mirror.aarnet.edu.au" and "planetmirror.com"
sites,
- When following links in your browser we strongly suggest that you
check where they are taking you, particularly if a large file download
is involved--you may think you're going to get something at a cheaper,
local download cost when, in fact, you will be "paying" full price,
- Many search engines have Australian sites, such as
http://www.yahoo.com.au/ and
http://www.altavista.yellowpages.com.au/.
You may wish to consider these instead of going for the corresponding
USA sites,
- Our two WWW/FTP proxies currently "live" on the computers
"web-2" and "cgi-2". If you use Netscape from any
of our lab computers your browser is normally (unless you change it)
configured to use one of these,
- You will be charged for the traffic incurred regardless of whether
a download completes satisfactorily or not. Every Internet packet we
receive incurs a cost regardless of whether it is part of a successful
or a failed download,
- You are not charged for traffic when you use UDUS,
- Finally, any changes to this policy will be announced via the
"csg-info" mailing-list.
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