Dear all,

I would like to ask for help regarding the Squid regex_url
Currently, I am preventing my users for downloading some files e.g file
with .bz2 extention.

In squid.conf I define as following :
acl BadUrl url_regex -i "/usr/local/squid/etc/data/BadUrlFile"

Add I add this entry to /usr/local/squid/etc/data/BadUrlFile :
So for example if my users try to download this URL , he will
got access denied page.

But some of the users did some trick by adding ? or ?/ in the URL, for
example : Or

And they successful to bypass my ACL and download the files they wanted.
I have try to add "\.bz2?$" and "\.bz2?/$" in to
/usr/local/squid/etc/data/BadUrlFile file. But it does not work.

Can anyone help me ? Thank you very much in advance.