Hello Squid Users.~ My squid.conf below. --------------------------------------------------------------------------------------------------------------------------- http_port 80 vhost https_port 443 accel cert=/etc/squid/a.crt key=/etc/squid/a.pem cafile=/etc/squid/a.ca protocol=https cache_peer 1.1.1.1 parent 80 0 no-query originserver name=my_parent no-digest no-netdb-exchange acl s1_domain dstdomain img.test.com http_access allow s1_domain cache_peer_domain my_parent img.test.com http_access deny all # We recommend you to use at least the following line. hierarchy_stoplist cgi-bin ? # Uncomment and adjust the following to add a disk cache directory. cache_dir ufs /cache 36000 16 256 # Add any of your own refresh_pattern entries above these. refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 1440 50% 2880 reload-into-ims --------------------------------------------------------------------------------------------------------------------------- I make script like this : curl -O/dev/null http://img.TEST.com/aaaaaaaa.gif But almost object do not store in cache_dir and that connect the Origin server directly I ran the script twice , same result. ( some object was cached ) I want to store all object in my disk and prevent to code (304 or 200) at Origin server And I have wonder what is mean about "TCP_REFRESH_UNMODIFIED" How can I do ? Thank you for reading this :-) PS. In STORE.LOG. almost of object was RELEASE. ------------------------------------------------------- 1279163784.168 RELEASE -1 FFFFFFFF FB25B6CB108A5507EB97BBF1A1846625 304 1279131351 1279113212 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/plan/plan_s3.gif 1279163784.548 RELEASE -1 FFFFFFFF DF9A50CB378A3E1AB48A0C6900DC7017 304 1279131352 1279113213 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/search/outoLayer01_tit.gif 1279163784.603 RELEASE -1 FFFFFFFF 15EB239DB8F1D5A665D9AA7C3F680823 304 1279131352 1279113206 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/common/logo.gif 1279163784.661 RELEASE -1 FFFFFFFF 617C4C87489B2E89F51E54BE0FE1DF63 304 1279131352 1279113213 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/search/outoLayer02_tit.gif 1279163784.825 RELEASE -1 FFFFFFFF BA416AF9E47126D86778FB0D0AE17360 304 1279131352 1279113206 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/common/layout/copyright.gif 1279163784.935 RELEASE -1 FFFFFFFF B9F378103145A56C3ADFB70121235832 304 1279131352 1279113206 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/common/layout/multiSearch.gif 1279163784.991 RELEASE -1 FFFFFFFF 1751939FD3D31BE9F77D3FE7EB807353 304 1279131352 1279113206 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/common/layout/signkorea.gif 1279163785.152 RELEASE -1 FFFFFFFF 2358F9ADB5CFD9D975E2511774039069 304 1279131352 1279113206 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/common/layout/ftc.gif 1279163785.207 RELEASE -1 FFFFFFFF A0CA9827452E4AA6FF4C8C0A44FCC812 304 1279131353 1279113206 -1 image/png -1/0 GET http://img.TEST.COM/front_2010/images/common/time_bg.png 1279163785.264 RELEASE -1 FFFFFFFF 40C5A8E250058F82B0857035872703ED 304 1279131353 1279113206 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/common/layout/ksnet.gif 1279163785.319 RELEASE -1 FFFFFFFF C65747391372B5D8A003F30C3123CCBB 304 1279131353 1279113206 -1 image/gif -1/0 GET http://img.TEST.COM/front_2010/images/common/layout/ksnet_txt.gif ----------------------------------------------------------------