Hi Amos, I have been trying the reply_body_max_size without the !all as you suggest, however I get the same outcome - download sizes aren't being restricted. We have used this schema with other directives such as delay_pools with out any problems so we are fairly sure the external acl's are doing everything they should be doing. As I mentioned reply_body_max_size works as expected with other types of acl's such as the proxy_auth example, is does seem the reply_body_max_size and external acl's have a problem working together....any thoughts? cheers Rob On 8 June 2012 17:41, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote: > > On 8/06/2012 4:50 p.m., Robert Gowty wrote: >> >> I am having problems getting an external acl to work with >> reply_body_max_size >> The steps I have taken are as follows: >> 1. Define the external_acl_type response_size_check_ext_acl_type >> >> # response_size_check_{pk}_acl pk >> external_acl_type response_size_check_ext_acl_type ttl=100 >> negative_ttl=100 cache=0 children=2 concurrency=20 %EXT_TAG %EXT_LOG >> /usr/share/bin/ext_acl_payload_check -c 20 --key=response_size_restriction >> >> 2. Create a number of acl's using this type in squid.conf, for example, >> then applying it to reply_body_max_size >> >> acl response_size_13_acl external response_size_check_ext_acl_type 13 >> http_reply_access allow response_size_13_acl !all >> reply_body_max_size 13 MB response_size_13_acl !all > > > The purpose of the "!all" is to prevent the response_size_13_acl match > doing an allow. "!all" will always be a false/no-match. > > So... using it on reply_body_max_size has the same effect of making sure > that line is never used. > > What you need is this: > > http_reply_access allow response_size_13_acl !all > reply_body_max_size 13 MB response_size_13_acl > > Amos -- Robert Gowty CTO Getbusi 1 College Road Sandy Bay, TAS, 7005. Phone: (03) 6226 6268 www.getbusi.com