Hi Alex, my question was: Does the special ( implied ) icap_class None exist in squid 3.0 ? We have for about 100 icap_services and icap_classes configured in squid 2.5 witch work as icap-client with webwasher-csm. In some special cases it was necessary to bypass icap for some destination domains. Thats why we use the given syntax: acl NO_ICAP_FOR dstdomain XXX icap_access None deny NO_ICAP_FOR In squid 3.0 it seems not to work as inspected. I have no Idea, what I have to do to define an icap_service that does no req or res, put this in an icap_class do_no_icap and then icap_access do_no_icap allow NO_ICAP_FOR. That's why we use this special None directive in 2.5 Alex Rousskov <rousskov@measure ment-factory.com> An juergen.paulo@xxxxxxxxxxxx 29.01.2008 19:43 Kopie squid-users@xxxxxxxxxxxxxxx Thema Re: icap_class None squid 3.0 [FinanzIT: Viruscheck] On Tue, 2008-01-29 at 08:53 +0100, Juergen.Paulo@xxxxxxxxxxxx wrote: > This syntax worked for squid 2.5: > > acl NO_ICAP_FOR dstdomain XXX > icap_access None deny NO_ICAP_FOR > > in squid 3.0 there comes up: > > FATAL: Did not find ICAP class 'None' referenced on line XXX > > Is there a need to config an icap_class None an how do I do this ? If you do not want ICAP, you can disable it with icap_enable. If you want to fine-tune access for an existing ICAP class, then you should use that class name on the icap_access line. If you are using ICAP services without classes, then you can try to use a service name on the icap_access line, but that may not work. You should probably just add a class for your service. For example, icap_service service_req reqmod_precache 0 icap://10.0.0.104:1344/req icap_class class_req service_req icap_access class_req deny NO_ICAP_FOR icap_access class_req allow all The whole icap_service/class design is rather cumbersome and confusing. It will probably be replaced when we add support for service chaining in Squid3. HTH, Alex.