Improve Custom refresh pattern
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Bottom line: caching Windows updates does indeed work
I still have yet to see any evidence to back this claim. A 19% hit rate for WU is crap. And no, there aren't a zillion little 1K files skewing the ratio.
Here is a proper test:
take two Windows 7 clients that you installed fresh and put them both behind the proxy, leaving only 1 powered on.
Install all updates until there are none left
Power on the second unit and then do all the same updates
Once complete, on pfSense run:squidclient -h LAN_IP -p 3128 mgr:infoand post the output. That will give a lot more detail about the recent session.
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updated, thanks to Valeriy
if there are any mistakes in the refresh pattern let me know
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KOM was right, in fact it was not working properly. Also, the results of bare counting of MISSes/HITs from not fully populated cache was not good measurement. Right now, any windowsupdate downloaded file (even partial) is fetched from cache, verified manually and monitored in access.log.
Few days ago I have made some improvements to utilize store_rewrite module.
They were tested, as suggested above by KOM, successfully.Indeed, some of WU were not cached properly since they were received from different CDN hosts.
Config files are below (squid.conf is only part that is related to this issue)
Apple and Symantec updates are cached well, too.
Steam/Xbox (cs.steampowered.com / llnwd.net respective CDN) are not confirmed yet.
The rest of refresh patterns and URL rewrites are still in experimental mode. Needs a lot of testing and research in order to make it done properly.
Attached is screenshot from Lightsquid, you can clearly see changes after 3rd of March.
P.S. Questions:
- not quite sure if I need to list all possible domains under acl dstdomain directive, or just first level domain will be good enough?
Comments:
- I have total 1.3TB of swap available and 32GB on server running Pfsense+Squid+SquidGuard+Snort+PfBlocker. Configuration is optimized for ~2000 hosts on LAN.
Current byte/hit rate is 20-45%
/usr/local/etc/squid/squid.conf
....... # No range offset limit for windowsupdate sites acl Windows_Update dstdomain windowsupdate.microsoft.com acl Windows_Update dstdomain update.microsoft.com acl Windows_Update dstdomain download.windowsupdate.com acl Windows_Update dstdomain windowsupdate.com acl Windows_Update dstdomain au.download.windowsupdate.com acl Windows_Update dstdomain bg.v4.pr.dl.ws.microsoft.com acl Windows_Update dstdomain wsus.ds.download.windowsupdate.com acl Windows_Update dstdomain au.b1.download.windowsupdate.com range_offset_limit -1 Windows_Update # Storeid_rewrite configuration acl updatesites dstdom_regex "/usr/local/etc/squid/updatesites.txt" store_id_access allow updatesites store_id_access deny all store_id_program /usr/local/libexec/squid/storeid_file_rewrite /usr/local/etc/squid/storeid_rewrite.conf store_id_children 200 startup=60 idle=1 concurrency=0 # Refresh patterns # 525600 min is one year # Gaming CDN refresh_pattern -i \.llnwd.net 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth refresh_pattern -i \.cs.steampowered.com 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth #windows update refresh_pattern -i \.update.microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth refresh_pattern -i \.windowsupdate.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth refresh_pattern -i \.download.microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth refresh_pattern -i \.ws.microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth # Symantec Updates # Only reload-into-ims works properly, other flags break update process refresh_pattern -i \.symantecliveupdate.com/.*\.(zip|exe|z7) 525600 100% 525600 reload-into-ims/usr/local/etc/squid/updatesites.txt
\.adobe.com \.java.com \.sun.com \.oracle.com \.apple.com \.microsoft.com \.windowsupdate.com \.ubuntu.com \.steampowered.com \.llnwd.net \.symantecliveupdate.com/usr/local/etc/squid/storeid_rewrite.conf
^http:\/\/.+?\.microsoft\.com\/.+?_([0-9a-z]{40})\.(cab|exe|ms[i|u|f]|asf|wm[v|a]|dat|zip|psf|appx) http://wupdate.squid.local/$1 ^http:\/\/.+?\.windowsupdate\.com\/.+?_([0-9a-z]{40})\.(cab|exe|ms[i|u|f]|asf|wm[v|a]|dat|zip|psf|appx) http://wupdate.squid.local/$1 ^http:\/\/.+?\.cs\.steampowered\.com\/(.*) http://steamupdates.squid.internal/$1 ^http:\/\/.+?\.apple\.com\/(.*) http://appupdates.apple.squid.internal/$1 ^http:\/\/.+?\.llnwd\.net\/(.*) http://llnwd.net.squid.internal/$1Regards,
Valeriy
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Just a note: manually modifying squid.conf is not good idea, since it can and will be rewritten by PfSense later. With next post I ll try to summarize all the changes and how to incorporate them using GUI of pfSense.
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This is interesting, I wish I had the time to test this thoroughly. Will do that as soon as I find the time.
FWIW, I had massive problems with the "range_offset_limit -1" directive and Windows 10 updates, with "psf" added to the "refresh_pattern". Update download was extremely slow and used up all available bandwidth after a while. It looked like Win10 was aborting and restarting the update download every few seconds, while Squid was still downloading from previous requests. Commented out the "range_offset_limit -1", and updates were downloading "normally" again. The "-1" value isn't documented in the current Squid docs, but it's documented for Squid 2.7. I wonder if "range_offset_limit -1" is still valid/needed with recent Squid versions.
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It worked very well.
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No caches of video, can you help?
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Forget about video caching…
Most video services push content via HTTPS, which we cannt cache.If you really need to have some video supplied to your users, then just download it and make is available via PLEX service, for instance or just regular network file system (SMB, NFS, etc.)
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Forget about video caching…
Most video services push content via HTTPS, which we cannt cache.If you really need to have some video supplied to your users, then just download it and make is available via PLEX service, for instance or just regular network file system (SMB, NFS, etc.)
Unless…You do MITM inspection.
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Forget about video caching…
Most video services push content via HTTPS, which we cannt cache.If you really need to have some video supplied to your users, then just download it and make is available via PLEX service, for instance or just regular network file system (SMB, NFS, etc.)
Unless…You do MITM inspection.
I do not know the MITM inspection.
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Forget about video caching…
Most video services push content via HTTPS, which we cannt cache.If you really need to have some video supplied to your users, then just download it and make is available via PLEX service, for instance or just regular network file system (SMB, NFS, etc.)
Unless…You do MITM inspection.
I do not know the MITM inspection.
I'm currently having issues with it after the latest Squid update, unsure as to why. However, you can do MITM inspection by enabling SSL filtering and deploying out a CA certificate to your clients.
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Any update not refresh_pattern?
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Caching video is bad idea, thats all I can say :)
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I have this for Apple iOS updates and iOS apps.
refresh_pattern -i appldnld\.apple\.com 129600 100% 129600 ignore-reload ignore-no-store override-expire override-lastmod ignore-must-revalidate refresh_pattern -i phobos\.apple\.com 129600 100% 129600 ignore-reload ignore-no-store override-expire override-lastmod ignore-must-revalidate refresh_pattern -i iosapps\.itunes\.apple\.com 129600 100% 129600 ignore-reload ignore-no-store override-expire override-lastmod ignore-must-revalidate -
Thanks updated
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how about youtube?
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I have this for Apple iOS updates and iOS apps.
refresh_pattern -i appldnld\.apple\.com 129600 100% 129600 ignore-reload ignore-no-store override-expire override-lastmod ignore-must-revalidate refresh_pattern -i phobos\.apple\.com 129600 100% 129600 ignore-reload ignore-no-store override-expire override-lastmod ignore-must-revalidate refresh_pattern -i iosapps\.itunes\.apple\.com 129600 100% 129600 ignore-reload ignore-no-store override-expire override-lastmod ignore-must-revalidateDoesn't apple block MITM using certificate pinning? Since their app store is over HTTPS.
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KOM was right, in fact it was not working properly. Also, the results of bare counting of MISSes/HITs from not fully populated cache was not good measurement. Right now, any windowsupdate downloaded file (even partial) is fetched from cache, verified manually and monitored in access.log.
Few days ago I have made some improvements to utilize store_rewrite module.
They were tested, as suggested above by KOM, successfully.Indeed, some of WU were not cached properly since they were received from different CDN hosts.
Config files are below (squid.conf is only part that is related to this issue)
Apple and Symantec updates are cached well, too.
Steam/Xbox (cs.steampowered.com / llnwd.net respective CDN) are not confirmed yet.
The rest of refresh patterns and URL rewrites are still in experimental mode. Needs a lot of testing and research in order to make it done properly.
Attached is screenshot from Lightsquid, you can clearly see changes after 3rd of March.
P.S. Questions:
- not quite sure if I need to list all possible domains under acl dstdomain directive, or just first level domain will be good enough?
Comments:
- I have total 1.3TB of swap available and 32GB on server running Pfsense+Squid+SquidGuard+Snort+PfBlocker. Configuration is optimized for ~2000 hosts on LAN.
Current byte/hit rate is 20-45%
/usr/local/etc/squid/squid.conf
....... # No range offset limit for windowsupdate sites acl Windows_Update dstdomain windowsupdate.microsoft.com acl Windows_Update dstdomain update.microsoft.com acl Windows_Update dstdomain download.windowsupdate.com acl Windows_Update dstdomain windowsupdate.com acl Windows_Update dstdomain au.download.windowsupdate.com acl Windows_Update dstdomain bg.v4.pr.dl.ws.microsoft.com acl Windows_Update dstdomain wsus.ds.download.windowsupdate.com acl Windows_Update dstdomain au.b1.download.windowsupdate.com range_offset_limit -1 Windows_Update # Storeid_rewrite configuration acl updatesites dstdom_regex "/usr/local/etc/squid/updatesites.txt" store_id_access allow updatesites store_id_access deny all store_id_program /usr/local/libexec/squid/storeid_file_rewrite /usr/local/etc/squid/storeid_rewrite.conf store_id_children 200 startup=60 idle=1 concurrency=0 # Refresh patterns # 525600 min is one year # Gaming CDN refresh_pattern -i \.llnwd.net 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth refresh_pattern -i \.cs.steampowered.com 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth #windows update refresh_pattern -i \.update.microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth refresh_pattern -i \.windowsupdate.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth refresh_pattern -i \.download.microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth refresh_pattern -i \.ws.microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 525600 100% 525600 reload-into-ims ignore-reload override-expire override-lastmod ignore-no-store ignore-private ignore-auth # Symantec Updates # Only reload-into-ims works properly, other flags break update process refresh_pattern -i \.symantecliveupdate.com/.*\.(zip|exe|z7) 525600 100% 525600 reload-into-ims/usr/local/etc/squid/updatesites.txt
\.adobe.com \.java.com \.sun.com \.oracle.com \.apple.com \.microsoft.com \.windowsupdate.com \.ubuntu.com \.steampowered.com \.llnwd.net \.symantecliveupdate.com/usr/local/etc/squid/storeid_rewrite.conf
^http:\/\/.+?\.microsoft\.com\/.+?_([0-9a-z]{40})\.(cab|exe|ms[i|u|f]|asf|wm[v|a]|dat|zip|psf|appx) http://wupdate.squid.local/$1 ^http:\/\/.+?\.windowsupdate\.com\/.+?_([0-9a-z]{40})\.(cab|exe|ms[i|u|f]|asf|wm[v|a]|dat|zip|psf|appx) http://wupdate.squid.local/$1 ^http:\/\/.+?\.cs\.steampowered\.com\/(.*) http://steamupdates.squid.internal/$1 ^http:\/\/.+?\.apple\.com\/(.*) http://appupdates.apple.squid.internal/$1 ^http:\/\/.+?\.llnwd\.net\/(.*) http://llnwd.net.squid.internal/$1Regards,
Valeriy
May I know.
1. Is it just copy CODE in Table 1(/usr/local/etc/squid/squid.conf) and paste to "Custom refresh_patterns" of squid on Pfsense ? Or any other changes need on Table 1.
2. How useful Table 2(/usr/local/etc/squid/updatesites.txt ) and Table 3(/usr/local/etc/squid/storeid_rewrite.conf)? Need to insert these tables on Table 1? If needed, guide me pls(I am Beginner)
My aim is to get steam update cache(dota2) -
I have this for Apple iOS updates and iOS apps.
refresh_pattern -i appldnld\.apple\.com 129600 100% 129600 ignore-reload ignore-no-store override-expire override-lastmod ignore-must-revalidate refresh_pattern -i phobos\.apple\.com 129600 100% 129600 ignore-reload ignore-no-store override-expire override-lastmod ignore-must-revalidate refresh_pattern -i iosapps\.itunes\.apple\.com 129600 100% 129600 ignore-reload ignore-no-store override-expire override-lastmod ignore-must-revalidateDoesn't apple block MITM using certificate pinning? Since their app store is over HTTPS.
Apps and iOS updates are over HTTP
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Hi,
Sorry for the stupid question..
But where does the following code goes:#new refresh patterns 3 acl Windows_Update dstdomain windowsupdate.microsoft.com acl Windows_Update dstdomain .update.microsoft.com acl Windows_Update dstdomain download.windowsupdate.com acl Windows_Update dstdomain www.download.windowsupdate.com acl Windows_Update dstdomain au.download.windowsupdate.com acl Windows_Update dstdomain bg.v4.pr.dl.ws.microsoft.comDoes it go to the ACLs tab?
Is it white list or does it go in local cache -> Custom refresh_patternsThank you