This is the stripped squid.conf
acl localnet src 172.16.0.0/16 # RFC1918 possible internal network 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 localnet src 10.10.23.1-10.10.23.254
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost manager
http_access allow localnet
http_access allow localhost
http_access allow localnet
http_access deny manager
http_access allow localnet
http_access deny all
htcp_access allow localnet
http_port 3128 intercept
cache_mem 256 MB
maximum_object_size_in_memory 512 KB
memory_replacement_policy lru
cache_replacement_policy lru
cache_dir ufs /var/spool/squid3 51200 16 256
#no limit
maximum_object_size 512 MB
cache_swap_low 90
cache_swap_high 95
access_log daemon:/var/log/squid3/access.log squid
logfile_rotate 5
cache_log /var/log/squid3/cache.log
coredump_dir /var/spool/squid3
refresh_pattern -i \.(3gp|7z|ace|asx|bin|deb|divx|dvr-ms|ram|rpm|exe|inc|cab|qt) 20160 80% 20160 ignore-no-cache override-expire override-lastmod reload-into-ims
refresh_pattern -i \.(rar|jar|gz|tgz|bz2|iso|m1v|m2(v|p)|mo(d|v)|arj|lha|lzh|zip|tar) 20160 80% 20160 ignore-no-cache override-expire override-lastmod reload-into-ims
refresh_pattern -i \.(jp(e?g|e|2)|gif|pn[pg]|bm?|tiff?|ico|swf|dat|ad|txt|dll) 20160 80% 20160 ignore-no-cache override-expire override-lastmod reload-into-ims
refresh_pattern -i \.(avi|ac4|mp(e?g|a|e|1|2|3|4)|mk(a|v)|ms(i|u|p)|og(x|v|a|g)|rm|r(a|p)m|snd|vob) 20160 80% 20160 ignore-no-cache override-expire override-lastmod reload-into-ims
refresh_pattern -i \.(pp(t?x)|s|t)|pdf|rtf|wax|wm(a|v)|wmx|wpl|cb(r|z|t)|xl(s?x)|do(c?x)|flv|x-flv) 20160 80% 20160 ignore-no-cache override-expire override-lastmod reload-into-ims
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern (Release|Packages(.gz)*)$ 0 20% 2880
refresh_pattern (\.deb|\.udeb)$ 129600 100% 129600
refresh_pattern . 0 20% 4320
quick_abort_min 16 KB
quick_abort_max 16 KB
quick_abort_pct 95
half_closed_clients off
shutdown_lifetime 0 seconds
cache_effective_user proxy
memory_pools on
client_db on
pipeline_prefetch on
cache_effective_group proxy