Lá vai o squid.conf:
------------- Início do squid.conf ----------------------
# NETWORK OPTIONS
# -----------------------------------------------------------------------------
# http_port 3128
# ssl_unclean_shutdown off
# icp_port 3130
# htcp_port 4827
# udp_incoming_address 0.0.0.0
# udp_outgoing_address 255.255.255.255
visible_hostname smart
# OPTIONS WHICH AFFECT THE NEIGHBOR SELECTION ALGORITHM
# -----------------------------------------------------------------------------
# icp_query_timeout 0
# maximum_icp_query_timeout 2000
# mcast_icp_query_timeout 2000
# dead_peer_timeout 10 seconds
hierarchy_stoplist cgi-bin \?
acl QUERY urlpath_regex cgi-bin \?
no_cache deny QUERY
# OPTIONS WHICH AFFECT THE CACHE SIZE
# -----------------------------------------------------------------------------
# cache_mem 8 MB
# cache_swap_low 90
# cache_swap_high 95
# maximum_object_size 4096 KB
# minimum_object_size 0 KB
# maximum_object_size_in_memory 8 KB
# ipcache_size 1024
# ipcache_low 90
# ipcache_high 95
# fqdncache_size 1024
# cache_replacement_policy lru
# memory_replacement_policy lru
# LOGFILE PATHNAMES AND CACHE DIRECTORIES
# -----------------------------------------------------------------------------
cache_dir ufs /var/squid/cache 100 16 256
cache_access_log /var/squid/logs/access.log
cache_log /var/squid/logs/cache.log
cache_store_log /var/squid/logs/store.log
# emulate_httpd_log off
# log_ip_on_direct on
# mime_table /usr/local/squid/etc/mime.conf
# log_mime_hdrs off
pid_filename /var/squid/logs/squid.pid
# debug_options ALL,1
# log_fqdn off
# client_netmask 255.255.255.255
# OPTIONS FOR EXTERNAL SUPPORT PROGRAMS
# -----------------------------------------------------------------------------
# ftp_user Squid@
# ftp_list_width 32
# ftp_passive on
# ftp_sanitycheck on
# cache_dns_program /usr/local/squid/libexec/dnsserver
# dns_children 5
# dns_retransmit_interval 5 seconds
# dns_timeout 5 minutes
# dns_defnames off
# hosts_file /etc/hosts
# diskd_program /usr/local/squid/libexec/diskd
# unlinkd_program /usr/local/squid/libexec/unlinkd
# pinger_program /usr/local/squid/libexec/pinger
# redirect_children 5
# redirect_rewrites_host_header on
#auth_param digest program <uncomment and complete this line>
#auth_param digest children 5
#auth_param digest realm Squid proxy-caching web server
#auth_param digest nonce_garbage_interval 5 minutes
#auth_param digest nonce_max_duration 30 minutes
#auth_param digest nonce_max_count 50
#auth_param ntlm program <uncomment and complete this line to activate>
#auth_param ntlm children 5
#auth_param ntlm max_challenge_reuses 0
#auth_param ntlm max_challenge_lifetime 2 minutes
#auth_param basic program <uncomment and complete this line>
auth_param basic children 5
auth_param basic realm Squid proxy-caching web server
auth_param basic credentialsttl 2 hours
# authenticate_cache_garbage_interval 1 hour
# authenticate_ttl 1 hour
# authenticate_ip_ttl 0 seconds
# OPTIONS FOR TUNING THE CACHE
# -----------------------------------------------------------------------------
# wais_relay_port 0
# request_header_max_size 10 KB
# request_body_max_size 0 KB
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320
# quick_abort_min 16 KB
# quick_abort_max 16 KB
# quick_abort_pct 95
# negative_ttl 5 minutes
# positive_dns_ttl 6 hours
# negative_dns_ttl 5 minutes
# range_offset_limit 0 KB
# TIMEOUTS
# -----------------------------------------------------------------------------
# connect_timeout 2 minutes
# peer_connect_timeout 30 seconds
# read_timeout 15 minutes
# request_timeout 5 minutes
# persistent_request_timeout 1 minute
# client_lifetime 1 day
# half_closed_clients on
# pconn_timeout 120 seconds
# ident_timeout 10 seconds
# shutdown_lifetime 30 seconds
# ACCESS CONTROLS
# -----------------------------------------------------------------------------
#Examples:
#acl myexample dst_as 1241
#acl password proxy_auth REQUIRED
#acl fileupload req_mime_type -i ^multipart/form-data$
#acl javascript rep_mime_type -i ^application/x-javascript$
#
#Recommended minimum configuration:
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 500 # smart
acl Safe_ports port 2700 # porta de login 2700
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 allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
#http_access deny to_localhost
acl hotmail_domains dstdomain .hotmail.msn.com .hotmail.com .passport.net
header_access Accept-Encoding deny hotmail_domains
acl msnmessenger url_regex -i gateway.dll
acl MSN req_mime_type -i ^application/x-msn-messenger$
#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#
#acl our_networks src 192.168.1.0/24 192.168.2.0/24
#http_access allow our_networks
# http_reply_access allow all
http_reply_access allow all
# icp_access deny all
icp_access allow all
# miss_access allow all
# ident_lookup_access deny all
# reply_body_max_size 0 allow all
# ADMINISTRATIVE PARAMETERS
# -----------------------------------------------------------------------------
# cache_mgr webmaster
# cache_effective_user nobody
# OPTIONS FOR THE CACHE REGISTRATION SERVICE
# -----------------------------------------------------------------------------
# announce_period 1 day
# announce_host tracker.ircache.net
# announce_port 3131
# HTTPD-ACCELERATOR OPTIONS
# -----------------------------------------------------------------------------
# httpd_accel_port 80
# httpd_accel_single_host off
# httpd_accel_with_proxy off
# httpd_accel_uses_host_header off
httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_with_proxy on
httpd_accel_uses_host_header on
# MISCELLANEOUS
# -----------------------------------------------------------------------------
# dns_testnames netscape.com internic.net nlanr.net microsoft.com
# logfile_rotate 10
# append_domain .yourdomain.com
# tcp_recv_bufsize 0 bytes
# memory_pools on
# forwarded_for on
# log_icp_queries on
# icp_hit_stale off
# minimum_direct_hops 4
# minimum_direct_rtt 400
# store_avg_object_size 13 KB
# store_objects_per_bucket 20
# client_db on
# netdb_low 900
# netdb_high 1000
# netdb_ping_period 5 minutes
# query_icmp off
# test_reachability off
# buffered_logs off
# reload_into_ims off
# icon_directory /usr/local/squid/share/icons
# error_directory /usr/local/squid/share/errors/English
# minimum_retry_timeout 5 seconds
# maximum_single_addr_tries 3
# snmp_port 3401
#
#Example:
# snmp_access allow snmppublic localhost
# snmp_access deny all
#
#Default:
# snmp_access deny all
# snmp_incoming_address 0.0.0.0
# snmp_outgoing_address 255.255.255.255
# as_whois_server whois.ra.net
# as_whois_server whois.ra.net
# wccp_router 0.0.0.0
# wccp_version 4
# wccp_incoming_address 0.0.0.0
# wccp_outgoing_address 255.255.255.255
# DELAY POOL PARAMETERS (all require DELAY_POOLS compilation option)
# -----------------------------------------------------------------------------
# delay_pools 0
#
#Example:
# delay_access 1 allow some_big_clients
# delay_access 1 deny all
# delay_access 2 allow lotsa_little_clients
# delay_access 2 deny all
#
#Default:
# none
#delay_parameters 1 -1/-1 8000/8000
#delay_parameters 2 32000/32000 8000/8000 600/8000
# delay_initial_bucket_level 50
# incoming_icp_average 6
# incoming_http_average 4
# incoming_dns_average 4
# min_icp_poll_cnt 8
# min_dns_poll_cnt 8
# min_http_poll_cnt 8
# max_open_disk_fds 0
# offline_mode off
# uri_whitespace strip
# acl buggy_server url_regex ^http://....
# broken_posts allow buggy_server
# mcast_miss_addr 255.255.255.255
# mcast_miss_ttl 16
# mcast_miss_encode_key XXXXXXXXXXXXXXXX
# nonhierarchical_direct on
# prefer_direct off
# strip_query_terms on
# coredump_dir none
coredump_dir /usr/local/squid/var/cache
# redirector_bypass off
# ignore_unknown_nameservers on
# digest_generation on
# digest_bits_per_entry 5
# digest_rebuild_period 1 hour
# digest_rewrite_period 1 hour
# digest_swapout_chunk_size 4096 bytes
# digest_rebuild_chunk_percentage 10
# client_persistent_connections on
# server_persistent_connections on
# pipeline_prefetch off
# request_entities off
# high_response_time_warning 0
# high_page_fault_warning 0
# high_memory_warning 0
# store_dir_select_algorithm least-load
# ie_refresh off
# vary_ignore_expire off
# sleep_after_fork 0
acl login2700 url_regex -i url.de.login
http_access allow login2700
# CONFIGURACOES DE AUTENTICACAO DO USUARIO (DINAMICA)
# -----------------------------------------------------------------------------
acl liberados src "/usr/local/squid/etc/ips.liberados"
http_access allow liberados
http_access deny msnmessenger
http_access deny MSN
http_access deny all
------------- Fim do squid.conf ----------------------