Modelo Básico - squid.conf

http_port 3128
visible_hostname srvlxabreu02

cache_access_log /var/log/squid/access.log
# Configuracoes do Cache
cache_mem 64 MB
maximum_object_size_in_memory 64 KB
maximum_object_size 512 KB
minimum_object_size 0 KB

cache_swap_low 90
cache_swap_high 95

# Autenticacao
auth_param basic program /usr/lib/squid/msnt_auth
auth_param basic children 5
auth_param basic realm Controle de Acesso a Internet

acl all src 0.0.0.0/0.0.0.0
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 80 443
acl purge method PURGE
acl CONNECT method CONNECT

http_access allow manager localhost
http_access deny manager
http_access allow purge localhost
http_access deny purge
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports

# ACL

acl redelocal src 192.168.0.0/255.255.255.0
acl usuarios_liberados proxy_auth "/etc/squid/usuarios_liberados"
acl sites_bloqueados url_regex -i "/etc/squid/sites_bloqueados"
acl sites_liberados url_regex -i "/etc/squid/sites_liberados"

http_access allow localhost
http_access deny sites_bloqueados
http_access allow sites_liberados
http_access allow usuarios_liberados
http_access deny all