Proxy_auth on squid2.1-Patch2?

Hi

Can anybody clarify me about proxy_auth statement?

In squid.conf example we've got
> acl aclname proxy_auth passwd_file
> 'passwd_file' is an Apache-style file .....

If I put there anything else except real user names proxy_auth
completely doesn't work. What's passwd_file?

I use squid2.1-PATCH2 with applied path from http://hem.passagen.se/hno/squid/
Squid can distinguish different computer. It's ok. But what about statement?

Regards
Max

P.S.: Happy New Year

-- 
Maxim Zimovets
System Administrator
Zimovets@uai.etel.ru
ICQ#:14937523