[squid-users] auth questions / help

[<sc2@xxxxxx>]

hello
i did read the squid docu and google but it doesnt work.
i use squid and have activate the webmin auth 
/etc/webmin/squid/squid-auth.pl with commandline
auth_params (or so) basic programm ......pl /etc/webmin/squid/users.
but i did never get a "question" like "username/passowrd"
which setting i must set too?
thx