# Quelle der Clients
acl all src 0.0.0.0/0.0.0.0 
# Authentifizierung verwenden
acl checkpw proxy_auth REQUIRED 

acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl SSL_ports port 443 563
acl Safe_ports port 80 21 443 563 70 210 1025-65535
acl CONNECT method CONNECT

# Zugriff für angemeldete Benutzer erlauben
http_access allow checkpw all 
#
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access deny all