Amos, here is an example: http://au.download.windowsupdate.com/d/msdownload/update/software/updt/2017/09/windows10.0-kb4023814-x86_f07f9708c76807b1b19545521f17d6e2fefdd627.cab HTTP/1.1 200 OK Cache-Control: public,max-age=172800 Content-Length: 6150968 Content-Type: application/vnd.ms-cab-compressed Last-Modified: Wed, 27 Sep 2017 21:16:36 GMT Accept-Ranges: bytes ETag: "09295e6d537d31:0" Server: Microsoft-IIS/8.5 X-Powered-By: ASP.NET X-CID: 7 X-CCC: IN X-MSEdge-Ref: Ref A: 7A93444FAE0B4491BE72E049496DEC25 Ref B: BOM02EDGE0119 Ref C: 2017-10-12T06:36:40Z X-MSEdge-Ref-OriginShield: Ref A: C8FD899B17694B8AA6641257C2636B9B Ref B: BOM01EDGE0318 Ref C: 2017-10-11T14:02:56Z Date: Thu, 12 Oct 2017 06:36:40 GMT Length: 6150968 (5.9M) [application/vnd.ms-cab-compressed] does it mean the object will be valid for 2 days (max-age=172800) only, then the Squid will download a fresh copy from internet even if we set the refresh_pattern to 1 month ? Ed. -- Sent from: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-Users-f1019091.html _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users