Hi I am using squid 2.5-10 stable as transparent cache. I have just started using refresh_pattern value to save more Bandwidth. I noticed my users are doing lot of windows update and antivirus update. My cache_mem value was 8 mb earlier which I increased to 32mb today. I made below configuration refresh_pattern -i exe$ 0 50% 999999 refresh_pattern -i zip$ 0 50% 999999 refresh_pattern -i tar\.gz$ 0 50% 999999 refresh_pattern -i tgz$ 0 50% 999999 refresh_pattern http://.*\.windowsupdate\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://office\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://windowsupdate\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://w?xpsp[0-9]\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://w2ksp[0-9]\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://download\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://download\.macromedia\.com/ 0 80% 20160 reload-into-ims refresh_pattern ftp://ftp\.nai\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://ftp\.software\.ibm\.com/ 0 80% 20160 reload-into-ims refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 Below is my access.log . I am still getting TCP_MISS 1124761891.740 273 10.18.1.227 TCP_MISS/206 15555 GET http://au.download.wind owsupdate.com/msdownload/update/v5/psf/windowsxp-sp2-x86fre-usa-2180_056 b2b38baf 5620be85ddd58141b073bc0b06a1d.psf - DIRECT/64.4.20.62 application/octet-stream 1124761892.107 19 10.18.13.98 TCP_IMS_HIT/304 206 GET http://windowsmedia.co m/Mediabar/static/mediabar.css - NONE/- text/css 1124761892.152 266 10.18.25.70 TCP_MISS/206 9682 GET http://au.download.windo wsupdate.com/msdownload/update/v3-19990518/cabpool/outlfltr_01bcc7d2d28a d160ed23 c0a43be5db1d2bda227b.cab - DIRECT/64.4.20.62 application/octet-stream 1124761892.877 30 10.18.13.98 TCP_IMS_HIT/304 222 GET http://windowsmedia.co m/mediabar/Static/Common.js - NONE/- application/x-javascript 1124761893.634 263 10.18.1.227 TCP_MISS/206 15561 GET http://au.download.wind owsupdate.com/msdownload/update/v5/psf/windowsxp-sp2-x86fre-usa-2180_056 b2b38baf 5620be85ddd58141b073bc0b06a1d.psf - DIRECT/64.4.20.62 application/octet-stream Is there any configuration problem?? Thanks - LK Disclaimer **************************************************************************************************************************** The information contained in this e-mail, any attached files, and response threads are confidential and may be legally privileged. It is intended solely for the use of individual(s) or entity to which it is addressed and others authorised to receive it. If you are not the intended recipient, kindly notify the sender by return mail and delete this message and any attachment(s) immediately. Save as expressly permitted by the author, any disclosure, copying, distribution or taking action in reliance on the contents of the information contained in this e-mail is strictly prohibited and may be unlawful. Unless otherwise clearly stated, and related to the official business of Accelon Nigeria Limited, opinions, conclusions, and views expressed in this message are solely personal to the author. Accelon Nigeria Limited accepts no liability whatsoever for any loss, be it direct, indirect or consequential, arising from information made available in this e-mail and actions resulting there from. For more information about Accelon Nigeria Limited, please see our website at http://www.accelonafrica.com ******************************************************************************************************************************