# cache size in MB / no. of subdirectories / no. of subsubdirectories
cache_dir ufs /var/spool/squid3 100 16 256

#maximum object size in cache (default: 4 MB)
#maximum_object_size 128 MB
maximum_object_size 4 MB

# Memory used for caching
cache_mem 32 MB

# No access log
#access_log /var/log/squid3/access.log combined
access_log none

# Hostname shown in messages
visible_hostname fff

# Bind Squid to port ... and configure as transparent proxy 
http_port 3128 intercept
# In addition a forward proxy is required
http_port 3129

refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern ^gopher:        1440    0%      1440
refresh_pattern -i (/cgi-bin/|\?) 0     0%      0
refresh_pattern .               0       20%     4320

# Allow connects from Freifunk Franken network
acl fff src 10.50.0.0/16 

# DNS by Freifunk-IP of localhost and Google DNS
dns_nameservers 10.50.32.5 8.8.8.8

# Bind outgoing address to Freifunk-Server IP to allow for VPN Routing 
tcp_outgoing_address 10.50.32.5
udp_outgoing_address 10.50.32.5

# Privacy options                  
via off
forwarded_for delete

# standard http anonymizer
request_header_access From deny all
#request_header_access Referer deny all
#request_header_access User-Agent deny all

## paranoid http anonymizer
#request_header_access Authorization allow all
#request_header_access Proxy-Authorization allow all
#request_header_access Cache-Control allow all
#request_header_access Content-Length allow all
#request_header_access Content-Type allow all
#request_header_access Date allow all
#request_header_access Host allow all
#request_header_access If-Modified-Since allow all
#request_header_access Pragma allow all
#request_header_access Accept allow all
#request_header_access Accept-Charset allow all
#request_header_access Accept-Encoding allow all
#request_header_access Accept-Language allow all
#request_header_access Connection allow all
#request_header_access All deny all

# Access controls
acl SSL_ports port 443          # https
acl Safe_ports port 80          # http
acl Safe_ports port 21          # ftp
acl Safe_ports port 443         # https
acl Safe_ports port 70          # gopher
acl Safe_ports port 210         # wais
acl Safe_ports port 1025-65535  # unregistered ports
acl Safe_ports port 280         # http-mgmt
acl Safe_ports port 488         # gss-http
acl Safe_ports port 591         # filemaker
acl Safe_ports port 777         # multiling http

acl CONNECT method CONNECT
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost manager
http_access deny manager
http_access allow fff
http_access allow localhost
http_access deny all