接近500台机器上网，使用Rehl4＋squid＋iptables透明代理上网:http_port 3128 cache_mem 512 M cache_swap_low 75 cache_swap_high 95 maximum_object_size 1024 KB cache_dir ufs /usr/local/squid/cache 60000 16 256 cache_access_log /var/squid/logs/access.log cache_log /dev/null cache_store_log none acl net1