Internet Access Proxy Service at HKUST
What is Proxy Service ?
Proxy Service helps to speed up web access as well as conserving
Internet bandwidth. It is offered by dedicated proxy server machines in UST.
Proxy servers access web pages on behalf of your desktop
machine and store web pages into its large hard disk farm. Subsequent
access to these stored pages will be taken from the local server's hard disk
instead of from the remote site again, thus speeding up web access.
Proxy Service in UST
We have migrated to our 2nd
generation Proxy Service, in which a
Transparent Proxy Cache subsystem has been deployed gradually since
February/March 2001 and completed in summer.
The Transparent Proxy Cache subsystem consist of two
layer 4 network switches (or so-called web switches) and 4 web cache
engines running Squid proxy caching software.
Benefits of the new system
Higher availability -- the two
network switches provide fault tolerance and automatic removal of failed
web cache engines
Bigger web cache -- by deploying a farm
of 4 web cache engines with larger hard disk farm, more web pages can be
stored in the cache farm, increasing the likelihood that a web page be
found in the cache
Prevent slow response -- the cache
engines are load-balanced using intelligent web switches. The chance
for a user to hit a heavily loaded engine is thus reduced, thereby giving
the user a more even response time
-- by deployment of transparent proxy technology, web requests will
be automatically handled by the web cache engines. As a result, users no
longer need to have explicit proxy setting to enjoy Proxy Service.
Who can use HKUST Proxy Service
Computers that can use UST Proxy Service include those in campus: offices, SSQ, Student Dormitory, and computers at home connecting to HKUST Dialup Modem Pool.
Note that computers at home connecting to Internet via an ISP cannot and do not need to use HKUST Proxy Service.
Configuration for Web Browser to Use Proxy
To enjoy the higher availability, it is
necessary that you REMOVE your browser's proxy setting.
Please click here
to see steps to check/perform the removal.
from 14 August 2001, students using ResNet and Dialup services are no longer
necessary to have explicit proxy setting. Click here
to see steps to remove your proxy setting in your browser.
Staff and students:
Your web browser should come with proxy setting disabled/empty, which is already the preferred
setting. To confirm if it is so, please click here.