I'm running Centos 7 as my OS and have installed squid to cache windows updates for my company.
Going through the log file, it shows that everything is tcp_miss, including when it's accessing the windows update servers.
I'm wanting my squid install to only cache windows updates. Anyone have any ideas what's happening and why it's not caching windows updates?
Here is an extract of the access.log file:
1432161438.306 109488 192.168.5.163 TCP_MISS/200 4739 CONNECT exchange.heffron-it.com.au:443 - HIER_DIRECT/10.50.10.48 -
1432161441.375 110041 192.168.5.163 TCP_MISS/200 77216 CONNECT exchange.heffron-it.com.au:443 - HIER_DIRECT/10.50.10.48 -
1432161462.843 642 192.168.5.163 TCP_MISS/200 528 GET http://csm90-en.url.trendmicro.com/T/344/eqO8qdreMFHVsZPQHJe0cJKbush61hKMNSLH-GHMhZNC0gyHuu0CiOxud1YD3SlseyJzwmgic9qMFKrJvi2iP_ZVPlXHsmBt-a8QqO6MKTbQ5melaEY1Atd9fYSAYQRQgrChDZuAfCvHu2U5ddX40KEKuZF8YPclvhCb0giJpRgy7jPMiOyYA_wMJVDfGp5sGSbAVFEYRdJAR3hykIDkCPXPsQluymS-Y3axrSHHJzYG1b_F8GB04cbdakDlGZSBxwyHXbwiLzjcYfQ7K1ASldegziZO9ZUfRcZh1ce6txSK6qOZiDy45zaEUg63wIEEEM__EWcaJQmYIXIVS69vwQ== - HIER_DIRECT/104.72.70.19 text/html
1432161464.121 7 192.168.5.163 TCP_MISS/200 528 GET http://csm90-en.url.trendmicro.com/T/88/eqO8qdreMFHVsZPQHJe0cKMe63vDoh5niNui_qK5WZVN6azyvqm3qkTNA4CeLlgfBLjs_woCLvmIDOVQwkWfzQ== - HIER_DIRECT/104.72.70.19 text/html
1432161475.490 1793 192.168.5.163 TCP_MISS/200 6947 CONNECT www.windowssearch.com:443 - HIER_DIRECT/204.79.197.200 -
1432161475.892 399 192.168.5.163 TCP_MISS/200 5545 CONNECT www.windowssearch.com:443 - HIER_DIRECT/204.79.197.200 -
1432161487.787 1383 192.168.5.163 TCP_MISS/200 3074 CONNECT ieonlinews.microsoft.com:443 - HIER_DIRECT/131.253.34.240 -
1432161539.434 63609 192.168.5.163 TCP_MISS/200 8498 CONNECT www.windowssearch.com:443 - HIER_DIRECT/204.79.197.200 -
1432161578.224 235 192.168.5.206 TCP_MISS/200 839 GET http://wfbs900-en.census.trendmicro.com/CENSUS/192/628a34bf49944a0519fedb6d65cafaf0399b98e5d08e025bf6a03eddead1cef7af0edf488fd174e494ae518835ff9da21915bbe7aa372ec1c81e135a6361da635d174ae8fe5adb5f5d174ae8fe5adb5f5d174ae8fe5adb5ffd3c35acca94bf90 - HIER_DIRECT/104.72.70.19 text/html
1432161578.559 6 192.168.5.206 TCP_MISS/200 839 GET http://wfbs900-en.census.trendmicro.com/CENSUS/192/628a34bf49944a0519fedb6d65cafaf09a839741bab62522e6bf975b8a4f628051bd7ab79e147e846b4fa2b6ca99524eb805125d90361b4738af1be64789a8e65d174ae8fe5adb5f5d174ae8fe5adb5f5d174ae8fe5adb5ffd3c35acca94bf90 - HIER_DIRECT/104.72.70.19 text/html
1432161600.474 331 192.168.5.206 TCP_MISS/200 626 GET http://csm90-en.url.trendmicro.com/T/364/Q6aqjhhr3YQMpi9B-doTwi4FWHDaRESyTNq3zZ_1sX_X-hiFqggD7pEESKNYWwTGUOzuehXAiA3LwMcj4ro0WYN6zsxLXe4g-DX2HZ9dHAz7iA-
Here is my current squid.conf file:
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src fc00::/7 # RFC 4193 local private network range
acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines
acl localnet src corp.heffron-it.com.au
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
acl all src all
acl windowsupdate dstdomain windowsupdate.microsoft.com
acl windowsupdate dstdomain au.download.windowsupdate.com
acl windowsupdate dstdomain .update.microsoft.com
acl windowsupdate dstdomain download.windowsupdate.com
acl windowsupdate dstdomain redir.metaservices.microsoft.com
acl windowsupdate dstdomain images.metaservices.microsoft.com
acl windowsupdate dstdomain c.microsoft.com
acl windowsupdate dstdomain www.download.windowsupdate.com
acl windowsupdate dstdomain wustat.windows.com
acl windowsupdate dstdomain crl.microsoft.com
acl windowsupdate dstdomain sls.microsoft.com
acl windowsupdate dstdomain productactivation.one.microsoft.com
acl windowsupdate dstdomain ntservicepack.microsoft.com
acl wuCONNECT dstdomain www.update.microsoft.com
acl wuCONNECT dstdomain sls.microsoft.com
acl wuCONNECT dstdomain wpa.one.microsoft.com
http_access allow CONNECT wuCONNECT localnet
http_access allow CONNECT wuCONNECT localhost
http_access allow windowsupdate localnet
http_access allow windowsupdate localhost
cache_effective_user squid
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost manager
http_access deny manager
http_access allow localnet
http_access allow localhost
http_access allow WindowsUpdate
http_access allow CONNECT wuCONNECT localnet
http_access allow windowsupdate localnet
request_header_access Allow allow all
request_header_access Authorization allow all
request_header_access WWW-Authenticate allow all
request_header_access Proxy-Authorization allow all
request_header_access Proxy-Authenticate allow all
request_header_access Cache-Control allow all
request_header_access Content-Encoding allow all
request_header_access Content-Length allow all
request_header_access Content-Type allow all
request_header_access Date allow all
request_header_access Expires allow all
request_header_access Host allow all
request_header_access If-Modified-Since allow all
request_header_access Last-Modified allow all
request_header_access Location allow all
request_header_access Pragma allow all
request_header_access Accept allow all
request_header_access Accept-Charset allow all
request_header_access Accept-Encoding allow all
request_header_access Accept-Language allow all
request_header_access Content-Language allow all
request_header_access Mime-Version allow all
request_header_access Retry-After allow all
request_header_access Title allow all
request_header_access Connection allow all
request_header_access Proxy-Connection allow all
request_header_access User-Agent allow all
request_header_access Cookie allow all
request_header_access All deny all
refresh_pattern -i microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80% 43200 reload-into-ims
refresh_pattern -i windowsupdate.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80% 43200 reload-into-ims
refresh_pattern -i windows.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80% 43200 reload-into-ims
http_access deny all
http_port 3128
cache_dir ufs /home/Cache/squid 102400 16 256
coredump_dir /home/Cache/squid
via off
forwarded_for off
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
Best Answer
Based on what you already have in your config file, I'm guessing you already found this Squid FAQ about Windows Updates: http://wiki.squid-cache.org/SquidFaq/WindowsUpdate
I'd suggest specifying the following caching options to make sure larger objects can be cached. maximum_object_size needs to be large enough to allow for the largest update file. 32GB should allow for even the largest service pack, or even any ISO files you may want cached.
If that doesn't help, you may also want to investigate the following additional options to your refresh_pattern lines (in addition to reload-into-ims):
For example, I use a line like this to cache all doc or pdf files: