为什么配置透明代理后，一些被禁网站可被访问到？

test_tmp

大家好，小弟最近用iptables+Squid做了一个透明代理，主要用于提高WEB页面打开的速度，效果很明显，但无意中发现一个问题，启用透明代理后，原来不可以访问的一些网站，比如：365论坛（是一个色情站点）竟然可以打开了，取消Squid后，就不可以访问了，哪位知道，要如何解决呢？
附Squid配置文件squid.conf
icp_port 0
cache_store_log none
cache_access_log none
cache_log /usr/local/squid/var/logs/cache.log
emulate_httpd_log on
pid_filename /usr/local/squid/var/squid.pid
cache_effective_user squid
cache_effective_group squid
visible_hostname cache.xxxx.net
cache_mgr xxxxx@163.com
http_port 3128
cache_mem 1024 MB
cache_dir aufs /cache0 8000 16 256
cache_dir aufs /cache1 8000 16 256
cache_dir aufs /cache2 8000 16 256
cache_dir aufs /cache3 8000 16 256
#reference_age 5 days
acl mynet1 src x.x.x.x/255.255.0.0
acl mynet2 src x.x.x.x/255.255.255.0
acl all src 0.0.0.0/0.0.0.0
http_access allow mynet1
http_access allow mynet2
http_access deny all
httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_with_proxy on
httpd_accel_uses_host_header on
half_closed_clients off
cache_swap_high 100%
cache_swap_low 80%
maximum_object_size 8192 KB
refresh_pattern -i .html 1440 100% 129600 reload-into-ims
refresh_pattern -i .shtml 1440 100% 129600 reload-into-ims
refresh_pattern -i .hml 1440 100% 129600 reload-into-ims
refresh_pattern -i .gif 1440 100% 129600 reload-into-ims
refresh_pattern -i .swf 1440 100% 129600 reload-into-ims
refresh_pattern -i .jpg 1440 100% 129600 reload-into-ims
refresh_pattern -i .png 1440 100% 129600 reload-into-ims
refresh_pattern -i .bmp 1440 100% 129600 reload-into-ims
refresh_pattern -i .js 1440 100% 129600 reload-into-ims

coolzsb

你原来的限制是针对客户机的，并没有针对服务器


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请体会，代理服务这四个字的真谛