squid.conf

Squid (squid.conf)

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Bloqueando sites para rede interna

Categoria: Segurança

Software: Squid

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Por: Charles Silva

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Essa é uma configuração de Squid básica, bloqueando computadores de uma rede interna ao abrir um site. É só instalar o Squid e renomear o squid.conf para squid.conf.velho, colocar esse no lugar e, então, criar um arquivo de texto com o nome blacklist em /usr/local/squid/etc/blacklist.txt , adicionar o site que deseja bloquear e pronto. 0bs: após ter instalado o Squid, coloque pra iniciar no rc.inet2, e tem uma acl liberando o único IP (acl unico), mude e coloque o seu IP, para que só você tenha acesso a todos os sites, e também altere o visible_hostname e dns_testnames.

#################################################################
# squid.conf - atualizado em 20/06/2006 - Charles Silva
#

############################
# Configuracoes basicas:
############################
hierarchy_stoplist cgi-bin ?
acl QUERY urlpath_regex cgi-bin \?
no_cache deny QUERY
cache_swap_low 90
cache_swap_high 95
maximum_object_size 192880 KB
maximum_object_size_in_memory 512 KB
auth_param basic children 5
auth_param basic realm Squid proxy-caching web server
auth_param basic credentialsttl 2 hours
refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern ^gopher:        1440    0%      1440
refresh_pattern .               0       20%     4320
visible_hostname proxy.digiteoseunomeaki.com.br
dns_testnames digita a testemunha aki

#############################
# Configuracoes da cache:
#############################
cache_dir aufs /usr/local/squid/cache 600 64 64
cache_access_log /usr/local/squid/logs/access.log
cache_log /usr/local/squid/logs/cache.log
cache_store_log /usr/local/squid/logs/store.log
coredump_dir /usr/local/squid/var/cache


###########################
# Definicoes das ACLs:
###########################
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 to_localhost dst 127.0.0.0/8
acl SSL_ports port 443 563
acl Safe_ports port 80          # http
acl Safe_ports port 21          # ftp
acl Safe_ports port 443 563     # https, snews
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
acl proibidos url_regex "/usr/local/squid/etc/blacklist.txt"
acl unico src 192.168.0.88
acl rede192 src 192.168.0.0/255.255.255.0
acl hotmail_domains dstdomain .hotmail.msn.com
acl ie6 browser MSIE[[:space:]]6


#########################
# Definicoes de acesso
#########################
http_access allow unico
http_access deny proibidos
http_access deny all !rede192
icp_access deny all !rede192
header_access Accept-Encoding deny all
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_reply_access allow all


###############################
# Definindo o usuario do squid
###############################
cache_effective_user squid
cache_effective_group squid


#######################
# Configuracao HTTP
#######################
httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_with_proxy on
httpd_accel_uses_host_header on
ie_refresh on


####################
# Rotacionando Log
####################
logfile_rotate 10

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