Forçando o cache do Windowsupdate com squid

Olá, essa dica é para forçar o cache dos arquivos do WindowsUpdate, certamente não é a solução correta,que seria implantar o WSUS no ambiente, mas ajuda muito quem não tem como utilizar essa solução

No arquivo de configuração do squid adicione as seguintes linhas:

Primeiro, vamos setar as políticas de reposição do nosso cache:

#politicas de reposicao
memory_replacement_policy heap GDSF
cache_replacement_policy heap LFUDA

Não esquecer de definir o tamanho máximo do arquivo em cache, nos meus ambientes costumo definir 300MB:

#Tamanho maximo do objeto para ser armazenado em cache
maximum_object_size 300 MB

Informar os endereços e arquivos para forçar o cache:

#Cache windowsupdate
refresh_pattern windowsupdate.com/.*\.(cab|exe|dll|msi|psf) 10080 100% 43200 reload-into-ims
refresh_pattern download.microsoft.com/.*\.(cab|exe|dll|msi|psf) 10080 100% 43200 reload-into-ims
refresh_pattern http://www.download.microsoft.com/.*\.(cab|exe|dll|msi|psf) 10080 100% 43200 reload-into-ims
refresh_pattern http://www.microsoft.com/.*\.(cab|exe|dll|msi|psf) 10080 100% 43200 reload-into-ims
refresh_pattern au.download.windowsupdate.com/.*\.(cab|exe|dll|msi|psf) 4320 100% 43200 reload-into-ims
refresh_pattern download.windowsupdate.com/.*\.(cab|exe|dll|msi|psf) 4320 100% 43200 reload-into-ims
refresh_pattern cache.pack.google.com/.*\.(cab|exe|dll|msi|psf) 4320 100% 43200 reload-into-ims
refresh_pattern http://www.update.microsoft.com/.*\.(cab|exe|dll|msi|psf) 10080 100% 43200 reload-into-ims
refresh_pattern wwww.download.windowsupdate.com/.*\.(cab|exe|dll|msi|psf) 10080 100% 43200 reload-into-ims

Efetue um reload no squid

Aqui um exemplo de estações obtendo os arquivos do cache:

1302852973.216      0 192.168.100.39 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/windowsupdate/redir/muv4wuredir.cab? – NONE/- application/octet-stre
am
1302852979.740      0 192.168.100.39 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/windowsupdate/redir/muv4wuredir.cab? – NONE/- application/octet-stre
am
1302853316.290      0 192.168.100.12 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/windowsupdate/redir/muv4wuredir.cab? – NONE/- application/octet-stre
am
1302853523.151      0 192.168.100.11 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/windowsupdate/redir/muv4wuredir.cab? – NONE/- application/octet-stre
am
1302853539.457      0 192.168.100.11 TCP_MEM_HIT/200 407 HEAD http://download.windowsupdate.com/v9/microsoftupdate/redir/muv4muredir.cab? – NONE/- application/octet-st
ream
1302853952.972      0 192.168.100.11 TCP_MEM_HIT/200 407 HEAD http://download.windowsupdate.com/v9/microsoftupdate/redir/muv4muredir.cab? – NONE/- application/octet-st
ream
1302853953.344      0 192.168.100.11 TCP_MEM_HIT/200 407 HEAD http://download.windowsupdate.com/v9/microsoftupdate/redir/muv4muredir.cab? – NONE/- application/octet-st
ream
1302853962.309      1 192.168.100.11 TCP_HIT/206 9492 GET http://download.windowsupdate.com/msdownload/update/software/defu/2011/04/am_delta_patch3_fb4b9506d3c5f6ccdef
c08a67d46bfccb54f155e.exe – NONE/- application/octet-stream
1302853964.399      1 192.168.100.11 TCP_HIT/206 10039 GET http://download.windowsupdate.com/msdownload/update/software/defu/2011/04/am_delta_patch3_fb4b9506d3c5f6ccde
fc08a67d46bfccb54f155e.exe – NONE/- application/octet-stream
1302853965.429      1 192.168.100.11 TCP_HIT/206 9485 GET http://download.windowsupdate.com/msdownload/update/software/defu/2011/04/am_delta_patch3_fb4b9506d3c5f6ccdef
c08a67d46bfccb54f155e.exe – NONE/- application/octet-stream
1302853966.453      2 192.168.100.11 TCP_HIT/206 21016 GET http://download.windowsupdate.com/msdownload/update/software/defu/2011/04/am_delta_patch3_fb4b9506d3c5f6ccde
fc08a67d46bfccb54f155e.exe – NONE/- application/octet-stream
1302853967.459      4 192.168.100.11 TCP_HIT/206 43112 GET http://download.windowsupdate.com/msdownload/update/software/defu/2011/04/am_delta_patch3_fb4b9506d3c5f6ccde
fc08a67d46bfccb54f155e.exe – NONE/- application/octet-stream
1302853968.477      7 192.168.100.11 TCP_HIT/206 87345 GET http://download.windowsupdate.com/msdownload/update/software/defu/2011/04/am_delta_patch3_fb4b9506d3c5f6ccde
fc08a67d46bfccb54f155e.exe – NONE/- application/octet-stream
1302853969.507     14 192.168.100.11 TCP_HIT/206 176664 GET http://download.windowsupdate.com/msdownload/update/software/defu/2011/04/am_delta_patch3_fb4b9506d3c5f6ccd
efc08a67d46bfccb54f155e.exe – NONE/- application/octet-stream
1302853970.519     21 192.168.100.11 TCP_HIT/206 260214 GET http://download.windowsupdate.com/msdownload/update/software/defu/2011/04/am_delta_patch3_fb4b9506d3c5f6ccd
efc08a67d46bfccb54f155e.exe – NONE/- application/octet-stream
1302854557.026      0 192.168.100.38 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/windowsupdate/redir/muv4wuredir.cab? – NONE/- application/octet-stre
am
1302854563.738      0 192.168.100.38 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/microsoftupdate/redir/muv4muredir.cab? – NONE/- application/octet-st
ream
1302854629.207      0 192.168.100.34 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/windowsupdate/redir/muv4wuredir.cab? – NONE/- application/octet-stre
am
1302854634.247      0 192.168.100.34 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/windowsupdate/redir/muv4wuredir.cab? – NONE/- application/octet-stre
am
1302855837.559      0 192.168.100.11 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/microsoftupdate/redir/muv4muredir.cab? – NONE/- application/octet-st
ream
1302855838.175      0 192.168.100.11 TCP_MEM_HIT/200 408 HEAD http://download.windowsupdate.com/v9/microsoftupdate/redir/muv4muredir.cab? – NONE/- application/octet-st
ream

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