Proxy Squid (squid.conf)

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# porta de comunicação
http_port 3128

# define o nome do servidor
visible_hostname servidor
error_directory /usr/share/squid/errors/Portuguese/

cache_mem 64 MB
maximum_object_size_in_memory 64 KB
maximum_object_size 512 MB
minimum_object_size 0 KB
cache_swap_low 90
cache_swap_high 95
cache_dir ufs /var/spool/squid 2048 16 256
cache_access_log /var/log/squid/access.log

refresh_pattern ^ftp: 15 20% 2280
refresh_pattern ^gopher: 15 0% 2280
refresh_pattern . 15 20% 2280

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 21 80 443 563 70 210 280 488 59 777 901 1025-65535
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

#bloquear por horário
acl almoco time 12:00-14:00
http_access allow almoco


# dentro da pasta squid criar o arquivo de nome bloqueados
#dentro do arquivo inserir nomes dos sites bloqueados
acl bloqueados url_regex -i "/etc/squid/bloqueados"
http_access deny bloqueados

#faixa de ip da rede
acl redelocal src 192.168.0.0/24
http_access allow localhost
http_access allow redelocal
http_access deny all