lighttpd - fastcgi-php - php5-cgi

["Informatik.hu" <info@informatik.hu>]

Hi!

I would like use lighttpd with fastcgi-php. Fastcgi-php connects to 
php5-cgi on 127.0.0.1:521.
I can start "php5-cgi -b 127.0.0.1:521" with root, but i would like to 
run in with another user, like www-data.
Exactly i want to run multiple php5-cgi  with multiple user (different 
ports per virtual hosts).

When i try to start php5-cgi with a normal user, i got the

"Cannot bind/listen socket - [13] Permission denied. Couldn't create 
FastCGI listen socket on port 127.0.0.1:522"

How can i star php5-cgi with a normal, or reduced user?

Vuki