[squid-users] Squid Block by file extension is not working.

I have configure my squid to block some file by extension to prevent
downloading. example,

acl BlockExt url_regex -i \.mp3$ \.asx$ \.wma$ \.wmv$ \.avi$ \.mpeg$
http_access deny BlockExt all

And its working fine. most of mp3,mpg download is blocked but recently
i have discovered user can download mp3 from some specific web site.
like www.mp3.com. (http://www.mp3.com/free-music/11-A/all-free-music)

I have check and found this sites user different kind of link to download like,
http://dw.com.com/redir?siteid=31&edid=3&ptid=&ontid=11735&ctype=RF;Song;ATN;PTNR&cval=3;21460710;2;&desturl=http%3A%2F%2Fdownload.mp3.com%2Findex.php%3Fsect%3Dforce_download%26type%3D3%26track_id%3D21460710%26time%3D1214201264%26auth%3Db286519c195e3dc51e7c0fee7fdda182

if i check my squid access log, i have only found this log,
http://dw.com.com/redir?
http://download.mp3.com/index.php?

i am afraid maybe there is more site user can download mp3 or mpg
files without any restriction.

Did i mis configure my squid? Pls help.

Thanks to All.
Received on Tue Jun 24 2008 - 07:09:21 MDT