Hi, We are using Akamai for site acceleration and wish to block traffic from a set of IPs. Can I just do something like if $TRUE-CLIENT-IP ~ IP { deny all; } or do I need to search the HTTP_Header This is not a variable defined in the HTTP core module. Sameer Posted at Nginx Forum: http://forum.nginx.org/read.php?2,13912,13912#msg-13912