We have been using squid in the following configuration since the end year 2000. Outward facing public squid servers serve content for multiple hosts. Behind the public servers is a middle layer of squid servers that hide the real origin servers. The real origin servers are various content management systems and flat file Apache web servers. The middle layer is using squid 2.5.11 along with jesred. The many to many relationship of host name to origin server is just two lines in the squid.conf httpd_accel_host virtual httpd_accel_uses_host_header on A non public dns takes care of host names coming and going. When we change the rewrite rules we just run squid -k reconfigure. Is there a configuration for squid 2.6.16 which avoids having to maintain a list of source and destination host names in squid.conf? Thank you, Warwick