I am using these refresh patterns. refresh_pattern windowsupdate.com/.*\.(cab|exe) 4320 100% 43200 reload-into-ims refresh_pattern download.microsoft.com/.*\.(cab|exe) 4320 100% 43200 reload-into-ims refresh_pattern ^http://.*\.cnn\.com 360 50% 4320 override-lastmod refresh_pattern ^http://news\.bbc\.co\.uk 360 50% 4320 override-lastmod refresh_pattern microsoft 1080 150% 10080 override-lastmod refresh_pattern msn\.com 4320 150% 10080 override-lastmod refresh_pattern ^http://.*\.doubleclick\.net 10080 300% 40320 override-lastmod refresh_pattern ^http://.*FIDO 360 1000% 480 refresh_pattern \.r[0-9][0-0]$ 10080 150% 40320 refresh_pattern ^http://.*\.gif$ 1440 50% 20160 refresh_pattern ^http://.*\.asis$ 1440 50% 20160 refresh_pattern -i \.pdf$ 10080 90% 43200 reload-into-ims refresh_pattern -i \.art$ 10080 150% 43200 reload-into-ims refresh_pattern -i \.avi$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.mov$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.wav$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.mp3$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.qtm$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.mid$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.viv$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.mpg$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.jpg$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.rar$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.ram$ 10080 150% 40320 reload-into-ims refresh_pattern -i \.gif$ 10080 300% 40320 reload-into-ims refresh_pattern -i \.txt$ 1440 100% 20160 reload-into-ims override-lastmod refresh_pattern -i \.zip$ 2880 200% 40320 reload-into-ims refresh_pattern -i \.arj$ 2880 200% 40320 reload-into-ims refresh_pattern -i \.exe$ 2880 200% 40320 reload-into-ims refresh_pattern -i \.tgz$ 10080 200% 40320 reload-into-ims refresh_pattern -i \.gz$ 10080 200% 40320 reload-into-ims refresh_pattern -i \.tgz$ 10080 200% 40320 reload-into-ims refresh_pattern -i \.tar$ 10080 200% 40320 reload-into-ims refresh_pattern -i \.Z$ 10080 200% 40320 reload-into-ims refresh_pattern ^ftp:// 1440 50% 10080 refresh_pattern ^gopher:// 1440 10% 1440 refresh_pattern . 0 20% 4320 after one day cache result was ------------------------------------ Server: squid/2.6.STABLE5 Date: Sat, 02 Dec 2006 00:24:29 GMT Content-Type: text/plain Expires: Sat, 02 Dec 2006 00:24:29 GMT Last-Modified: Sat, 02 Dec 2006 00:24:29 GMT X-Cache: MISS from proxy.mediadot.net X-Cache-Lookup: MISS from proxy.mediadot.net:8080 Via: 1.0 proxy.mediadot.net:8080 (squid/2.6.STABLE5) Proxy-Connection: close Squid Object Cache: Version 2.6.STABLE5 Start Time: Fri, 01 Dec 2006 12:37:25 GMT Current Time: Sat, 02 Dec 2006 00:24:29 GMT Connection information for squid: Number of clients accessing cache: 5 Number of HTTP requests received: 17208 Number of ICP messages received: 0 Number of ICP messages sent: 0 Number of queued ICP replies: 0 Request failure ratio: 0.00 Average HTTP requests per minute since start: 24.3 Average ICP messages per minute since start: 0.0 Select loop called: 4474390 times, 9.482 ms avg Cache information for squid: Request Hit Ratios: 5min: 0.8%, 60min: 1.8% Byte Hit Ratios: 5min: -0.1%, 60min: -0.2% Request Memory Hit Ratios: 5min: 0.0%, 60min: 0.0% Request Disk Hit Ratios: 5min: 0.0%, 60min: 10.8% Storage Swap size: 2444576 KB Storage Mem size: 3452 KB Mean Object Size: 332.96 KB Requests given to unlinkd: 981 Median Service Times (seconds) 5 min 60 min: HTTP Requests (All): 1.24267 1.81376 Cache Misses: 1.24267 1.81376 Cache Hits: 0.00000 0.00494 Near Hits: 0.61549 1.81376 Not-Modified Replies: 0.00000 0.00000 DNS Lookups: 0.00278 0.00278 ICP Queries: 0.00000 0.00000 Resource usage for squid: UP Time: 42423.963 seconds CPU Time: 136.357 seconds CPU Usage: 0.32% CPU Usage, 5 minute avg: 0.28% CPU Usage, 60 minute avg: 0.34% Process Data Segment Size via sbrk(): 10496 KB Maximum Resident Size: 0 KB Page faults with physical i/o: 0 Memory usage for squid via mallinfo(): Total space in arena: 10496 KB Ordinary blocks: 10417 KB 119 blks Small blocks: 0 KB 0 blks Holding blocks: 3976 KB 2 blks Free Small blocks: 0 KB Free Ordinary blocks: 78 KB Total in use: 14393 KB 99% Total free: 78 KB 1% Total size: 14472 KB Memory accounted for: Total accounted: 6364 KB memPoolAlloc calls: 5452952 memPoolFree calls: 5421488 File descriptor usage for squid: Maximum number of file descriptors: 8192 Largest file desc currently in use: 79 Number of file desc currently in use: 73 Files queued for open: 0 Available number of file descriptors: 8119 Reserved number of file descriptors: 100 Store Disk files open: 3 IO loop method: epoll Internal Data Structures: 7421 StoreEntries 680 StoreEntries with MemObjects 664 Hot Object Cache Items 7342 on-disk objects 2006-12-02 05:24:29 [1]: 0.007 secs, 398.995536 KB/s (3KB) I also disable this default tag. but all all request goes at DIRECT connection. #acl QUERY urlpath_regex cgi-bin \? #no_cache deny QUERY I am using Fedora Core 6 as OS with 256MB RAM. ____________________________________________________________________________________ Cheap talk? 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