People... I rewrite my squid.conf. Now it is: http_port 10.0.0.250:3128 transparent icp_port 0 cache_mem 128 MB cache_swap_low 90 cache_swap_high 95 cache_dir ufs /usr/local/squid/var/cache 1024 16 256 cache_access_log /usr/local/squid/var/logs/access.log cache_log /usr/local/squid/var/logs/cache.log cache_store_log /usr/local/squid/var/logs/store.log maximum_object_size_in_memory 1 MB maximum_object_size 100 MB minimum_object_size 0 MB pid_filename /usr/local/squid/var/logs/squid.pid visible_hostname squid.provider.com.br cache_effective_user squidaemon cache_effective_group squid acl all src 10.0.0.0/8 http_access allow all I tried allow the mime type but didn't works. Please, if anybody knows something, tell me!!! PS: If I shut-down squid, works normaly.