Galera faço legal o teste, no meu server e dá allow mas na hora de testar a autenticação no IE não funciona eu coloco a login e a senha e ele retorna para eu colocar novamente gostaria que se alguem pudesse me ajudar aqui está meu squid.com

http_port 10.10.8.4:3128
hierarchy_stoplist cgi-bin ?
acl QUERY urlpath_regex cgi-bin \?
no_cache deny QUERY
cache_mem 64 MB
cache_swap_low 90
cache_swap_high 95
maximum_object_size 16 MB
minimum_object_size 0 KB
maximum_object_size_in_memory 10 MB
cache_dir ufs /var/cache/squid 5600 16 256
cache_access_log /var/log/squid/access.log
cache_log /var/log/squid/cache.log
cache_store_log /var/log/squid/store.log
auth_param basic program /usr/local/bin/smb_auth -W BRAGANCA -U 10.10.0.1 -d
auth_param basic realm Digite seu login e senha:
auth_param basic children 5

auth_param basic credentialsttl 2 hours
auth_param basic credentialsttl 2 hours
request_body_max_size 4000 KB
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320
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 80 403 # 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 2001
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 Safe_ports port 901 # Swat
acl CONNECT method CONNECT
acl nega url_regex "/etc/squid/nega.cfg"
acl proibir_palavras dstdom_regex -i "/etc/squid/negas/palavras"
acl dom_bloqueados dstdomain "/etc/squid/negas/dom_bloq"
acl msn_messenger req_mime_type -i ^application/x-msn-messenger$
acl msn url_regex -i /gateway/gateway.dll

http_access allow manager localhost
http_access deny manager
http_access deny nega
http_access deny proibir_palavras
http_access deny dom_bloqueados
http_access deny msn_messenger
http_access deny msn
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports

http_access allow all
http_reply_access allow all
icp_access allow all
cache_mgr ti.bp@saofrancisco.edu.br
visible_hostname proxy.usf
httpd_accel_with_proxy on
httpd_accel_uses_host_header on
icon_directory /usr/share/squid/icons
error_directory /usr/share/squid/errors/Portuguese
coredump_dir /var/cache/squid