Squid 配置文件详解
# NETWORK OPTIONS(网络选项)
# -----------------------------------------------------------------------------
http_port 3128 #代理端口
icp_port 3130 #icp端口
# OPTIONS WHICH AFFECT THE NEIGHBOR SELECTION ALGORITHM
#-----------------------------------------------------------------------------
#禁止缓存
hierarchy_stoplist cgi-bin ?
hierarchy_stoplist -i ^https:\\ ?
acl QUERY urlpath_regex -i cgi-bin \? \.asp \.php \.jsp \.cgi
acl denyssl urlpath_regex -i ^https:\\
no_cache deny QUERY
no_cache deny denyssl
#上面几个就是说遇到URL中有包含cgi-bin和以https:\\开头的都不要缓存,
#asp、cgi、php等动态脚本也不要缓存,
#https://开通的不缓存是因为一般我们进行电子商务交易,
#例如银行付款等都是采用这个的,如果把信用卡号什么缓存那不是很危险。
# OPTIONS WHICH AFFECT THE CACHE SIZE(定义cache大小的选项)
# -----------------------------------------------------------------------------
cache_mem 32 MB #额外使用内存量,可根据你的系统内存在设定,一般为实际内存的1/3
cache_swap_low 70 #最低缓存百分比
cache_swap_high 95 #最高缓存百分比,就是上面那个额外内存的使用百分比
maximum_object_size 4096 KB #单个文件最大缓存大小,超过这个大小将不缓存
maximum_object_size_in_memory 8 KB #在内存中单个文件最大缓存大小,超过这个大小将不缓存到内存中
#有DNS正反解所得到的IP存在缓存区的大小,这样可以加快解析速度
ipcache_size 1024
ipcache_low 90
ipcache_high 95
fqdncache_size 1024
# LOGFILE PATHNAMES AND CACHE DIRECTORIES(定义日志文件的路径及cache的目录)
# -----------------------------------------------------------------------------
# 各发行版自带的Squid略有区别,一般使用各发行版自带的设置
# <cache_dir>; <aufs|ufs>; <目录所在>; <MBytes大小>; <dir1>; <dir2>;
# 那个 aufs 只有在编译的时候加入 --enable-async-io 那个选项才有支持,
# 至于目录所在地与所占用的磁盘大小则请视您的主机情况而定,
# 而后面 dir1, dir2 则是两个次目录的大小,通常 16 256 或 64 64 皆可,
# 一般来说,数字最好是 16 的倍数,据说性能会比较好啦!
cache_dir aufs /Cache1 100 16 256
cache_dir aufs /Cache2 100 16 256
#日志存放位置
#cache_access_log /usr/local/squid/var/logs/access.log
#cache_log /usr/local/squid/var/logs/cache.log
# TAG: cache_store_log
#cache_store_log /usr/local/squid/var/logs/store.log
# TAG: pid_filename
#pid_filename /usr/local/squid/var/logs/squid.pid
# OPTIONS FOR EXTERNAL SUPPORT PROGRAMS(外部支持程序选项)
# -----------------------------------------------------------------------------
#用代理登陆匿名ftp服务选项
# 各发行版自带的Squid略有区别,一般使用各发行版自带的设置
# TAG: ftp_user
ftp_user Squid@ #用户名
ftp_passive on #被动模式
#认证
#auth_param basic children 5
#auth_param basic realm Squid proxy-caching web server
#auth_param basic credentialsttl 2 hours
#auth_param basic casesensitive off
# OPTIONS FOR TUNING THE CACHE(调整cache的选项)
# -----------------------------------------------------------------------------
# TAG: refresh_pattern Cache更新时间设置
#<refresh_pattern>; <regex>; <最小时间>; <百分比>; <最大时间>;
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320
#上面第一行如果网址开头是 ftp 的话,那么在一天(1440分钟)后,
#如果proxy 再次取用这个档案时,则 cache 内的数据会被更新!
# TIMEOUTS (超时)
# -----------------------------------------------------------------------------
#连接到其他机器的最大尝试时间
connect_timeout 1 minute
#连接到上层代理的超时时间
peer_connect_timeout 30 seconds
#返回超时
request_timeout 2 minutes
#持续连接时间
persistent_request_timeout 1 minute
# ACCESS CONTROLS(访问控制)
# -----------------------------------------------------------------------------
# TAG: acl
#Examples:
#acl myexample dst_as 1241
#acl password proxy_auth REQUIRED
#acl fileupload req_mime_type -i ^multipart/form-data$
#acl javascript rep_mime_type -i ^application/x-javascript$
#
#Recommended minimum configuration:
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
acl SSL_ports port 443 563
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 563 # https, snews
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 msn url_regex -i ^ http://gateway.messenger.hotmail.com
acl inside1 src 192.168.1.0/24 #内部网IP段
acl inside2 src 192.168.2.0/24
acl localmac arp "/usr/local/squid/localmac" #mac地址文件
# TAG: http_access
http_access allow inside1 #允许inside1规则通过
http_access allow inside2 #允许inside2规则通过
http_access allow localmac #允许localmac里面有登记的mac地址通过
http_access allow msn #允许访问 http://gateway.messenger.hotmail.com
acl admin arp 00:40:05:13:C4:B2
http_access allow admin #允许00:40:05:13:C4:B2这个mac地址
#
#Recommended minimum configuration:
#
# Only allow cachemgr access from localhost
http_access allow manager localhost #允许manager访问localhost
http_access deny manager #禁止manager访问
# Deny requests to unknown ports
http_access deny !Safe_ports #禁止访问不在Safe_ports里的端口
# Deny CONNECT to other than SSL ports
http_access deny CONNECT !SSL_ports #禁止访问非443,563端口
#
acl banned_sites url_regex "/etc/squid/banned.list"
acl worktime time MTWHF 8:30-12:00 14:00-18:00
acl mmxfile urlpath_regex -i \.mp3$ \.avi$ \.rmvb$ \.rm$ \.wma$ \.wmv$
http_access deny worktime mmxfile #禁止在worktime时间内访问.mp3,.avi,.rmvb,.rm,.wma文件
http_access deny worktime banned_sites #banned.list文件里的网址全部丢弃
http_access allow localhost #localhost可以访问
#------按照网段,限制连接数
acl loc1 src 192.168.1.0/24
acl loc1_conn maxconn 50
acl loc2 src 192.168.2.0/24
acl loc2_conn maxconn 30
http_access deny loc1 loc1_conn
http_access allow loc1
http_access deny loc2 src loc2_conn
http_access allow loc2
#-----------------------------
http_access allow localhost #localhost可以访问
http_access deny all #丢弃其他
# HTTPD-ACCELERATOR OPTIONS(HTTPD加速选项)
# -----------------------------------------------------------------------------
#设定透明代理
httpd_accel_host virtual #主机名
httpd_accel_port 80 #透明代理端口
httpd_accel_with_proxy on
httpd_accel_uses_host_header on