Been at this for a few hours to no avail so I'd thought I turn to the collective genius of this list. I'm trying to block all connections to anything but images, text, javascript, and CSS. I would like to reply with a 404 error. My server is setup in Accel mode. Even blocking only text/html should be sufficient for what I need. I've tried many variations of the following but nothing seems to take. It serves text/html just fine. I've tried: acl allowext url_regex -i \.jpg$ \.png$ \.gif$ \.css$ \.js$ http_access allow !allowext http_access deny !allowext AND acl blockmimeq req_mime_type -i ^text/html$ acl blockmimep rep_mime_type -i ^text/html$ http_access deny blockmimeq http_reply_access deny blockmimep with many variations/combos of those. Still no luck. Here's my latest ACL in my config (not working) # Basic ACLs acl manager proto cache_object acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 acl mydomain dstdomain .domain.com .static.com localhost acl localnet src 10.0.0.0/16 acl Safe_ports port 80 # http acl purge method PURGE acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access allow purge localhost http_access deny purge http_access deny !Safe_ports http_access allow mydomain #mime-types acl blockmimeq req_mime_type -i ^text/html$ acl blockmimep rep_mime_type -i ^text/html$ http_access deny blockmimeq http_reply_access deny blockmimep http_access deny all icp_access allow localnet icp_access deny all Any ideas? Jeff