Improve Custom refresh pattern

KOM · Aug 25, 2022, 4:52 PM

@jonathanlee Perhaps four years ago I did. I don't remember since it's been four years. I don't even use squid anymore. It's completely useless other than as a base for squidguard URL filtering.

JonathanLee · Aug 25, 2022, 5:09 PM

@kom I respectfully disagree with "useless", I use it for HTTPS cache anti-virus scanning of HTTPS websites and HTTP. Dynamic caching, URL filtering, and blocking. Don't get me wrong it is rather complicated to understand, however the vast abilities that it has to customize a network environment by need is what sets it apart. It can do many things. It is just a challenge to learn. It has also protected my system from many hidden issues that Clam AV stops and reports with HTTPS alongside pup detection as well as generates clear reports. It's Mirrored Analytics down to a granular level.

dmalick · Sep 15, 2022, 10:19 AM

@kivimart is it working for squid version - 4.45

aGeekhere · Sep 16, 2022, 1:37 AM

@dmalick You can use the latest here https://github.com/mmd123/squid-cache-dynamic_refresh-list

Yes it works with the latest squid

dmalick · Sep 16, 2022, 1:37 AM

@ageekhere it is working thanks

JonathanLee · Sep 16, 2022, 4:16 AM

@dmalick keep in mind that sometimes if changes in a website are very small it will still load old information if you use ssl intercept and have it set up to cache https. I have had a issue with a time card that would not load a new line because the watermark was to low to require a refresh, however on a different machine it would see the new time card. Just be aware that things are still a work in progress.

dmalick · Sep 16, 2022, 5:23 AM

This post is deleted!

dmalick · Sep 16, 2022, 5:29 AM

@jonathanlee my configuration (is it fine)

# This file is automatically generated by pfSense
# Do not edit manually !

http_port 192.168.1.3:3128 ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=50MB cert=/usr/local/etc/squid/serverkey.pem cafile=/usr/local/share/certs/ca-root-nss.crt capath=/usr/local/share/certs/ cipher=EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:HIGH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS tls-dh=prime256v1:/etc/dh-parameters.2048 options=NO_SSLv3,SINGLE_DH_USE,SINGLE_ECDH_USE

icp_port 0
digest_generation off
dns_v4_first on
pid_filename /var/run/squid/squid.pid
cache_effective_user squid
cache_effective_group proxy
error_default_language en
icon_directory /usr/local/etc/squid/icons
visible_hostname pfSense.local.dev
cache_mgr admin@localhost
access_log /var/squid/logs/access.log
cache_log /var/squid/logs/cache.log
cache_store_log none
netdb_filename /var/squid/logs/netdb.state
pinger_enable on
pinger_program /usr/local/libexec/squid/pinger
sslcrtd_program /usr/local/libexec/squid/security_file_certgen -s /var/squid/lib/ssl_db -M 4MB -b 2048
tls_outgoing_options cafile=/usr/local/share/certs/ca-root-nss.crt
tls_outgoing_options capath=/usr/local/share/certs/
tls_outgoing_options options=NO_SSLv3,SINGLE_DH_USE,SINGLE_ECDH_USE
tls_outgoing_options cipher=EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:HIGH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
tls_outgoing_options flags=DONT_VERIFY_PEER
sslcrtd_children 25
sslproxy_cert_error allow all
sslproxy_cert_adapt setValidAfter all
sslproxy_cert_adapt setValidBefore all
sslproxy_cert_adapt setCommonName all

logfile_rotate 7
debug_options rotate=7
shutdown_lifetime 3 seconds
forwarded_for delete
via off
httpd_suppress_version_string on
uri_whitespace strip


cache_mem 3072 MB
maximum_object_size_in_memory 51200 KB
memory_replacement_policy heap GDSF
cache_replacement_policy heap LFUDA
minimum_object_size 0 KB
maximum_object_size 512 MB
cache_dir aufs /var/squid/cache 20000 32 256
offline_mode off
cache_swap_low 90
cache_swap_high 95
acl donotcache dstdomain "/var/squid/acl/donotcache.acl"
cache deny donotcache
cache allow all
# Add any of your own refresh_pattern entries above these.
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


#Remote proxies


# Setup some default acls
# ACLs all, manager, localhost, and to_localhost are predefined.
acl allsrc src all
acl safeports port 21 70 80 210 280 443 488 563 591 631 777 901 8080 3128 3129 1025-65535 
acl sslports port 443 563 8080 

acl purge method PURGE
acl connect method CONNECT

# Define protocols used for redirects
acl HTTP proto HTTP
acl HTTPS proto HTTPS

# SslBump Peek and Splice
# http://wiki.squid-cache.org/Features/SslPeekAndSplice
# http://wiki.squid-cache.org/ConfigExamples/Intercept/SslBumpExplicit
# Match against the current step during ssl_bump evaluation [fast]
# Never matches and should not be used outside the ssl_bump context.
#
# At each SslBump step, Squid evaluates ssl_bump directives to find
# the next bumping action (e.g., peek or splice). Valid SslBump step
# values and the corresponding ssl_bump evaluation moments are:
#   SslBump1: After getting TCP-level and HTTP CONNECT info.
#   SslBump2: After getting TLS Client Hello info.
#   SslBump3: After getting TLS Server Hello info.
# These ACLs exist even when 'SSL/MITM Mode' is set to 'Custom' so that
# they can be used there for custom configuration.
acl step1 at_step SslBump1
acl step2 at_step SslBump2
acl step3 at_step SslBump3
acl allowed_subnets src 192.168.1.44/32 192.168.1.41/32
acl whitelist dstdom_regex -i "/var/squid/acl/whitelist.acl"
acl sslwhitelist ssl::server_name_regex -i "/var/squid/acl/whitelist.acl"
acl blacklist dstdom_regex -i "/var/squid/acl/blacklist.acl"
http_access allow manager localhost

http_access deny manager
http_access allow purge localhost
http_access deny purge
http_access deny !safeports
http_access deny CONNECT !sslports

# Always allow localhost connections
http_access allow localhost

request_body_max_size 0 KB
delay_pools 1
delay_class 1 2
delay_parameters 1 -1/-1 -1/-1
delay_initial_bucket_level 100
delay_access 1 allow allsrc

# Reverse Proxy settings


# Custom options before auth


# Always allow access to whitelist domains
http_access allow whitelist
# Block access to blacklist domains
http_access deny blacklist
# Set YouTube safesearch restriction
acl youtubedst dstdomain -n www.youtube.com m.youtube.com youtubei.googleapis.com youtube.googleapis.com www.youtube-nocookie.com
request_header_access YouTube-Restrict deny all
request_header_add YouTube-Restrict none youtubedst
ssl_bump peek step1
ssl_bump splice sslwhitelist
ssl_bump bump all
# Setup allowed ACLs
http_access allow allowed_subnets
# Default block all to be sure
http_access deny allsrc

icap_enable on
icap_send_client_ip on
icap_send_client_username on
icap_client_username_encode off
icap_client_username_header X-Authenticated-User
icap_preview_enable on
icap_preview_size 1024

icap_service service_avi_req reqmod_precache icap://127.0.0.1:1344/squid_clamav bypass=on
adaptation_access service_avi_req allow all
icap_service service_avi_resp respmod_precache icap://127.0.0.1:1344/squid_clamav bypass=on
adaptation_access service_avi_resp allow all

JonathanLee · Sep 17, 2022, 3:51 AM

@dmalick here is mine I run a file that lets specific devices splice and specific websites.

#This file is automatically generated by pfSense
#Do not edit manually !
http_port 192.168.1.1:3128 ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=10MB cert=/usr/local/etc/squid/serverkey.pem cafile=/usr/local/share/certs/ca-root-nss.crt capath=/usr/local/share/certs/ cipher=EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:HIGH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS tls-dh=prime256v1:/etc/dh-parameters.2048 options=NO_SSLv3,SINGLE_DH_USE,SINGLE_ECDH_USE

http_port 127.0.0.1:3128 intercept ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=10MB cert=/usr/local/etc/squid/serverkey.pem cafile=/usr/local/share/certs/ca-root-nss.crt capath=/usr/local/share/certs/ cipher=EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:HIGH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS tls-dh=prime256v1:/etc/dh-parameters.2048 options=NO_SSLv3,SINGLE_DH_USE,SINGLE_ECDH_USE

https_port 127.0.0.1:3129 intercept ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=10MB cert=/usr/local/etc/squid/serverkey.pem cafile=/usr/local/share/certs/ca-root-nss.crt capath=/usr/local/share/certs/ cipher=EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:HIGH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS tls-dh=prime256v1:/etc/dh-parameters.2048 options=NO_SSLv3,SINGLE_DH_USE,SINGLE_ECDH_USE

icp_port 3130
digest_generation off
dns_v4_first on
pid_filename /var/run/squid/squid.pid
cache_effective_user squid
cache_effective_group proxy
error_default_language en
icon_directory /usr/local/etc/squid/icons
visible_hostname proxy.pfsense.secure
cache_mgr jonathanlee571@gmail.com
access_log /var/squid/logs/access.log
cache_log /var/squid/logs/cache.log
cache_store_log none
netdb_filename /var/squid/logs/netdb.state
pinger_enable on
pinger_program /usr/local/libexec/squid/pinger
sslcrtd_program /usr/local/libexec/squid/security_file_certgen -s /var/squid/lib/ssl_db -M 4MB -b 2048
tls_outgoing_options cafile=/usr/local/share/certs/ca-root-nss.crt
tls_outgoing_options capath=/usr/local/share/certs/
tls_outgoing_options options=NO_SSLv3,SINGLE_DH_USE,SINGLE_ECDH_USE
tls_outgoing_options cipher=EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA+RC4:EECDH:EDH+aRSA:HIGH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
sslcrtd_children 5

logfile_rotate 0
debug_options rotate=0
shutdown_lifetime 3 seconds
#Allow local network(s) on interface(s)
acl localnet src 192.168.0.0/16
forwarded_for on
via off
httpd_suppress_version_string on
uri_whitespace strip

#WINDOWS
refresh_pattern -i windowsupdate.com/..(cab|exe|dll|ms[i|u|f|p]|[ap]sf|wm[v|a]|dat|zip|psf) 43200 80% 129600 reload-into-ims
refresh_pattern -i microsoft.com/..(cab|exe|dll|ms[i|u|f|p]|[ap]sf|wm[v|a]|dat|zip|psf) 43200 80% 129600 reload-into-ims
refresh_pattern -i windows.com/..(cab|exe|dll|ms[i|u|f|p]|[ap]sf|wm[v|a]|dat|zip|psf) 43200 80% 129600 reload-into-ims
refresh_pattern -i microsoft.com.akadns.net/..(cab|exe|dll|ms[i|u|f|p]|[ap]sf|wm[v|a]|dat|zip|psf) 43200 80% 129600 reload-into-ims
refresh_pattern -i deploy.akamaitechnologies.com/..(cab|exe|dll|ms[i|u|f|p]|[ap]sf|wm[v|a]|dat|zip|psf) 43200 80% 129600 reload-into-ims
refresh_pattern -i msedge.b.tlu.dl.delivery.mp.microsoft.com/..(cab|exe|dll|ms[i|u|f|p]|[ap]sf|wm[v|a]|dat|zip|psf) 43200 80% 129600 reload-into-ims

#FACEBOOK
refresh_pattern ^http.facebook.com. 720 100% 4320

#FACEBOOK IMAGES
refresh_pattern -i pixel.facebook.com..(jpg|png|gif|ico|css|js) 241920 80% 241920
refresh_pattern -i .akamaihd.net..(jpg|png|gif|ico|css|js) 241920 80% 241920
refresh_pattern -i ((facebook.com)|(85.131.151.39)).(jpg|png|gif) 241920 99% 241920 store-stale
refresh_pattern static.(xx|ak).fbcdn.net.(jpg|gif|png) 241920 99% 241920
refresh_pattern ^http.profile.ak.fbcdn.net.(jpg|gif|png) 241920 99% 241920

#YAHOO
refresh_pattern ^http.mail.yahoo.com. 720 100% 4320
refresh_pattern ^http.yahoo. 720 100% 4320
refresh_pattern ^http.yimg. 720 100% 4320

#apple update
refresh_pattern -i apple.com/..(cab|exe|msi|msu|msf|asf|wmv|wma|dat|zip|dist)$ 0 80% 43200 refresh-ims
#refresh_pattern -i (download|adcdownload).apple.com/.*.(pkg|dmg) 4320 100% 43200
refresh_pattern -i appldnld.apple.com 129600 100% 129600
refresh_pattern -i phobos.apple.com 129600 100% 129600
refresh_pattern -i iosapps.itunes.apple.com 129600 100% 129600

#GOOGLE STUFF
refresh_pattern ^http.gmail. 720 100% 4320
refresh_pattern ^http.google. 720 100% 4320

#AntiVirus
refresh_pattern ^http.kaspersky. 43200 100% 43200
refresh_pattern ^http.geo.kaspersky.com. 43200 100% 43200
refresh_pattern kaspersky.*.avc$ 43200 100% 43200
refresh_pattern kaspersky 43200 100% 43200

#Office/Windows
refresh_pattern ^http.officecdn.microsoft.com. 43200 100% 43200
refresh_pattern ^http.officecdn.microsoft.com.edgesuite.net. 43200 100% 43200
refresh_pattern ^http.delivery.mp.microsoft.com/filestreamingservice/files. 43200 100% 43200
refresh_pattern ^http.download.windowsupdate.com. 43200 100% 43200
refresh_pattern ^http.download.windowsupdate.com/. 43200 100% 43200
refresh_pattern ^http.au.download.windowsupdate.com/. 43200 100% 43200
refresh_pattern ^http.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files. 43200 100% 43200

#Website
refresh_pattern -i (.|-)(xml|js|jsp|txt|css)(?.*)?$ 360 40% 1440
#end new refresh patterns

refresh_pattern .(ico|video-stats)$ 129600 100% 129600

#MISC FILE CACHING HERE
refresh_pattern -i .(3gp|7z|ace|asx|avi|bin|cab|dat|deb|rpm|divx|dvr-ms)(?|$) 43800 100% 129600
refresh_pattern -i .(rar|jar|gz|tgz|tar|bz2|iso)(?|$) 43800 100% 129600
refresh_pattern -i .(m1v|M2V|M2P|MOD|MOV|FLV)(?|$) 43800 100% 129600
refresh_pattern -i .(jp(e?g|e|2)|gif|pn[pg]|bm?|tiff?|ico|swf|css|js)(?|$) 43800 100% 129600
refresh_pattern -i .(mp(e?g|a|e|1|2|3|4)|mk(a|v)|ms(i|u|p))(?|$) 43800 100% 129600
refresh_pattern -i .(og(x|v|a|g)|rar|rm|r(a|p)m|snd|vob|wav)(?|$) 43800 100% 129600
refresh_pattern -i .(pp(s|t)|wax|wm(a|v)|wmx|wpl|zip|cb(r|z|t))(?|$) 43800 100% 129600
refresh_pattern -i .(woff|txt|exe|dmg|webm)(?|$) 43800 100% 129600
refresh_pattern -i .(css)(?|$) 10080 60% 43800 # CSS
refresh_pattern -i .(js)(?|$) 10080 60% 10080 # JS
refresh_pattern -i .(doc|pdf)(?|$) 10080 90% 43200 # DOC | PDF
refresh_pattern -i .(html|htm)(?|$) 1440 60% 10080 # HTML | HTM
refresh_pattern -i .(iso|avi|wav|mp3|mp4|mpeg|swf|flv|x-flv)$ 43200 90% 432000
refresh_pattern -i .(deb|rpm|exe|zip|tar|tgz|ram|rar|bin|ppt|doc|docx|tiff)$ 10080 90% 43200
refresh_pattern -i .(html|htm|css|js)$ 1440 40% 40320
refresh_pattern -i .index.(html|htm)$ 0 40% 10080
refresh_pattern -i .(ppt|pptx|doc|docx|docm|docb|dot|pdf|pub|ps)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(xls|xlsx|xlt|xlm|xlsm|xltm|xlw|csv|txt)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(app|bin|deb|rpm|drpm|exe|zip|zipx|tar|tgz|tbz2|tlz|iso|arj|cfs|dar|jar)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(bz|bz2|ipa|ram|rar|uxx|gz|msi|dll|lz|lzma|7z|s7z|Z|z|zz|sz)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(exe|msi)$ 0 90% 200000 refresh-ims
refresh_pattern -i .(cab|psf|vidt|apk|wtex|hz|ova|ovf)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(xml|flow|asp|aspx)$ 0 90% 200000 refresh-ims
refresh_pattern -i .(json)$ 0 90% 200000 refresh-ims
refresh_pattern -i .(asx|mp2|mp3|mp4|mp5|wmv|flv|mts|f4v|f4|pls|midi|mid)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(mpa|m2a|mpe|avi|mov|mpg|mpeg|mpg3|mpg4|mpg5)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(m1s|mp2v|m2v|m2s|m2ts|mp2t|wmx|rm|rmvb|3pg|3gpp|omg|ogm|asf|war)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(swf|js|ejs)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(wav|css|class|dat|zsci|ver|advcs)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(gif|png|ico|jpg|jpeg|jp2|webp)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(jpx|j2k|j2c|fpx|bmp|tif|tiff|bif)$ 100000 90% 20000 refresh-ims
refresh_pattern -i .(pcd|pict|rif|exif|hdr|bpg|img|jif|jfif)$ 100000 90% 200000 refresh-ims
refresh_pattern -i .(woff|woff2|eps|ttf|otf|svg|svgi|svgz|ps|ps1|acsm|eot)$ 100000 90% 200000 refresh-ims
refresh_pattern -i (.|-)(mid|midi|mpg|mpeg|ram|cav|acc|alz|apk|at3|bke|arc|ass|ba|big|bik|bkf|bld|c4|cals|clipflair|cpt|daa|dmg|ddz|dpe|egg|egt|ecab|ess|gho|ghs|gz|ipg|jar|lbr|lqr|lha|lz|lzo|lzma|lzx|mbw|mc.meta|mpq|nth|osz|pak|par|par2|paf|pyk|pk3|pk4|rag|sen|sitx|skb|tb|tib|uha|uue|viv|vsa|z|zoo|nrg|adf|adz|dms|dsk|d64|sdi|mds|mdx|cdi|cue|cif|c2d|daa|b6t)(?.*)?$ 43200 100% 432000
refresh_pattern -i (.|-)(mp3|m4a|aa?c3?|wm?av?|og(x|v|a|g)|ape|mka|au|aiff|zip|flac|m4(b|r)|m1v|m2(v|p)|mo(d|v)|arj|appx|lha|lzh|on2) 43200 100% 432000
refresh_pattern -i (.|-)(exe|bin|(n|t)ar|acv|(r|j)ar|t?gz|(g|b)z(ip)?2?|7?z(ip)?|wm[v|a]|patch|diff|mar|vpu|inc|r(a|p)m|kom|iso|sys|[ap]sf|ms[i|u|f]|dat|msi|cab|psf|dvr-ms|ace|asx|qt|xt|esd) 43200 100% 432000
refresh_pattern -i (.|-)(ico(.)?|pn[pg]|css|(g|t)iff?|jpe?g(2|3|4)?|psd|c(d|b)r|cad|bmp|img) 43200 100% 432000
refresh_pattern -i (.|-)(webm|(x-)?swf|mp(eg)?(3|4)|mpe?g(av)?|(x-)?f(l|4)v|divx?|rmvb?|mov|trp|ts|avi|m38u|wmv|wmp|m4v|mkv|asf|dv|vob|3gp?2?) 43200 100% 432000
refresh_pattern -i (.|-)(docx?|xlsx?|pptx?|rtf|xml|pdf|tiff?|txt) 43200 100% 432000

#new refresh patterns 2
refresh_pattern -i (.|-)(ini|def|sig|upt|mid|midi|mpg|mpeg|ram|cav|acc|alz|apk|at3|bke|arc|ass|ba|big|bik|bkf|bld|c4|cals|clipflair|cpt|daa|dmg|ddz|dpe|egg|egt|ecab|ess|esd|gho|ghs|gz|ipg|jar|lbr|lqr|lha|lz|lzo|lzma|lzx|mbw|mc.meta|mpq|nth|osz|pak|par|par2|paf|pyk|pk3|pk4|rag|sen|sitx|skb|tb|tib|uha|uue|viv|vsa|z|zoo|nrg|adf|adz|dms|dsk|d64|sdi|mds|mdx|cdi|cue|cif|c2d|daa|b6t)(?.*)?$ 43200 100% 432000
#end new refresh patterns 2

#new refresh patterns
refresh_pattern -i (.|-)(mp3|m4a|aa?c3?|wm?av?|og(x|v|a|g)|ape|mka|au|aiff|zip|flac|m4(b|r)|m1v|m2(v|p)|mo(d|v)|arj|appx|lha|lzh|on2)(?.)?$ 43200 100% 432000
refresh_pattern -i (.|-)(exe|bin|(n|t)ar|acv|(r|j)ar|t?gz|(g|b)z(ip)?2?|7?z(ip)?|wm[v|a]|patch|diff|mar|vpu|inc|r(a|p)m|kom|iso|sys|[ap]sf|ms[i|u|f]|dat|msi|cab|psf|dvr-ms|ace|asx|qt|xt|esd)(?.)?$ 43200 100% 432000
refresh_pattern -i (.|-)(ico(.)?|pn[pg]|css|(g|t)iff?|jpe?g(2|3|4)?|psd|c(d|b)r|cad|bmp|img)(?.)?$ 43200 100% 432000
refresh_pattern -i (.|-)(webm|(x-)?swf|mp(eg)?(3|4)|mpe?g(av)?|(x-)?f(l|4)v|divx?|rmvb?|mov|trp|ts|avi|m38u|wmv|wmp|m4v|mkv|asf|dv|vob|3gp?2?)(?.)?$ 43200 100% 432000
refresh_pattern -i (.|-)(docx?|xlsx?|pptx?|rtf|xml|pdf|tiff?|txt)(?.)?$ 43200 100% 432000
refresh_pattern -i .(rar|jar|gz|tgz|tar|bz2|iso|m1v|m2(v|p)|mo(d|v)|flv) 129600 100% 129600
refresh_pattern (Release|Packages(.gz)*)$ 0 20% 2880

#YOUTUBE
refresh_pattern .ytimg? 10800 90% 10800
refresh_pattern -i (yimg|twimg).com.* 1440 100% 129600
refresh_pattern -i (ytimg|ggpht).com.* 1440 80% 129600
refresh_pattern -i (get_video?|videoplayback?|videodownload?|.mp4|.webm|.flv|((audio|video)/(webm|mp4))) 241920 100% 241920 store-stale
refresh_pattern -i ^https?://..googlevideo.com/videoplayback. 10080 99% 43200 store-stale
refresh_pattern -i ^https?://..googlevideo.com/videoplayback.$ 241920 100% 241920 store-stale

#XBOX
refresh_pattern -i lancache-microsoft 525600 100% 525600
refresh_pattern -i images-eds.xboxlive.com 525600 100% 525600

#catch all
refresh_pattern -i (/cgi-bin/|?) 0 0% 0
refresh_pattern . 0 30% 43200
range_offset_limit 0

cache_mem 64 MB
maximum_object_size_in_memory 256 KB
memory_replacement_policy heap GDSF
cache_replacement_policy heap LFUDA
minimum_object_size 0 KB
maximum_object_size 5000 MB
cache_dir diskd /var/squid/cache 15000 64 256
offline_mode off
cache_swap_low 90
cache_swap_high 95
acl donotcache dstdomain '/var/squid/acl/donotcache.acl'
cache deny donotcache
cache allow all
#Add any of your own refresh_pattern entries above these.
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

#Remote proxies

#Setup some default acls
#ACLs all, manager, localhost, and to_localhost are predefined.
acl allsrc src all
acl safeports port 21 70 80 210 280 443 488 563 591 631 777 901 8080 3128 3129 1025-65535 3128 3129 1344 3130 5228-5230
acl sslports port 443 563 8080 8854 8810 8806 1344 3128 3129 3130 5228-5230

acl purge method PURGE
acl connect method CONNECT

#Define protocols used for redirects
acl HTTP proto HTTP
acl HTTPS proto HTTPS

#SslBump Peek and Splice
#http://wiki.squid-cache.org/Features/SslPeekAndSplice
#http://wiki.squid-cache.org/ConfigExamples/Intercept/SslBumpExplicit
#Match against the current step during ssl_bump evaluation [fast]
#Never matches and should not be used outside the ssl_bump context.

#At each SslBump step, Squid evaluates ssl_bump directives to find
#the next bumping action (e.g., peek or splice). Valid SslBump step
#values and the corresponding ssl_bump evaluation moments are:
#SslBump1: After getting TCP-level and HTTP CONNECT info.
#SslBump2: After getting TLS Client Hello info.
#SslBump3: After getting TLS Server Hello info.
#These ACLs exist even when 'SSL/MITM Mode' is set to 'Custom' so that
#they can be used there for custom configuration.
acl step1 at_step SslBump1
acl step2 at_step SslBump2
acl step3 at_step SslBump3
acl allowed_subnets src 192.168.1.0/24 192.168.20.0/24 127.0.0.1/32
acl unrestricted_hosts src '/var/squid/acl/unrestricted_hosts.acl'
acl whitelist dstdom_regex -i '/var/squid/acl/whitelist.acl'
http_access allow manager localhost

http_access deny manager
http_access allow purge localhost
http_access deny purge
http_access deny !safeports
http_access deny CONNECT !sslports

#Always allow localhost connections
http_access allow localhost

quick_abort_min 512 KB
quick_abort_max 512 KB
quick_abort_pct 90
request_body_max_size 0 KB
delay_pools 1
delay_class 1 2
delay_parameters 1 -1/-1 -1/-1
delay_initial_bucket_level 100

Do not throttle unrestricted hosts

delay_access 1 deny unrestricted_hosts
delay_access 1 allow allsrc

#Reverse Proxy settings

#Package Integration
url_rewrite_program /usr/local/bin/squidGuard -c /usr/local/etc/squidGuard/squidGuard.conf
url_rewrite_bypass off
url_rewrite_children 16 startup=8 idle=4 concurrency=0

#Custom options before auth

#These hosts do not have any restrictions
http_access allow unrestricted_hosts
#Always allow access to whitelist domains
http_access allow whitelist
#Set YouTube safesearch restriction
acl youtubedst dstdomain -n www.youtube.com m.youtube.com youtubei.googleapis.com youtube.googleapis.com www.youtube-nocookie.com
request_header_access YouTube-Restrict deny all
request_header_add YouTube-Restrict moderate youtubedst
acl sglog url_regex -i sgr=ACCESSDENIED
http_access deny sglog
#Custom SSL/MITM options before auth
acl splice_only src 192.168.20.11 #Xbox
acl splice_only src 192.168.1.11 #Amazon Fire
acl splice_only src 192.168.1.10 #Tasha Work
acl NoSSLIntercept ssl::server_name_regex -i '/usr/local/pkg/url.nobump'
ssl_bump peek step1 all
ssl_bump splice NoSSLIntercept
ssl_bump splice splice_only
ssl_bump stare step2
ssl_bump bump step3

#Setup allowed ACLs
#Allow local network(s) on interface(s)
http_access allow allowed_subnets
http_access allow localnet

Default block all to be sure

http_access deny allsrc

icap_enable on
icap_send_client_ip on
icap_send_client_username off
icap_client_username_encode off
icap_client_username_header X-Authenticated-User
icap_preview_enable on
icap_preview_size 1024

icap_service service_avi_req reqmod_precache icap://127.0.0.1:1344/squid_clamav bypass=off
adaptation_access service_avi_req allow all
icap_service service_avi_resp respmod_precache icap://127.0.0.1:1344/squid_clamav bypass=on
adaptation_access service_avi_resp allow all

JonathanLee · Sep 17, 2022, 3:55 AM

@dmalick what made you use 25 for the SSL children? I just use the default of 5, maybe I should increase mine.

JonathanLee · Sep 18, 2022, 4:12 PM

@dmalick

https://forum.netgate.com/topic/126737/ssl-certificate-deamon-children-how-many?loggedin=true

I noticed this post today about ssl children and set mine to 10

dmalick · Sep 19, 2022, 9:49 AM

@jonathanlee also trying the same, today i have upgrade squid package to squid 0.4.45_9 package, Another thing i am getting error from

19.09.2022 15:18:08 	192.168.1.41 	TCP_MISS/200 	https://cdn.arstechnica.net/wp-content/uploads/2022/09/compute-980x735.jpeg 	- 	167.88.158.176
19.09.2022 15:18:08 	192.168.1.41 	TCP_MISS/200 	https://cdn.arstechnica.net/wp-content/uploads/2022/09/3dmark-980x735.jpeg 	- 	167.88.158.176
19.09.2022 15:18:08 	192.168.1.41 	TCP_MISS/200 	https://cdn.arstechnica.net/wp-content/uploads/2022/09/3dmark-150x150.jpeg 	- 	167.88.158.176
19.09.2022 15:18:08 	192.168.1.41 	TCP_MISS/200 	https://cdn.arstechnica.net/wp-content/uploads/2022/09/compute-150x150.jpeg 	- 	167.88.158.176
19.09.2022 15:18:08 	192.168.1.41 	TCP_MISS/200 	https://cdn.arstechnica.net/wp-content/uploads/2022/09/cinebench-150x150.jpeg

JonathanLee · Sep 19, 2022, 12:58 PM

@dmalick cdn stands for content delivery network, are you using a steaming service? Example Hulu Disney plus or Amazon prime, I have the proxy set to not cache these because it's a steaming service.

JonathanLee · Sep 22, 2022, 5:45 AM

@dmalick Hit means its already stored, miss means its stored as of now because it was never stored yet, refresh means dynamic based refresh that is out of date or expired timer. Do a quick search on the specifics, you will never have 100 percent hits.