Squid学习笔记 - HelloWorld开发者社区

1、部署

编译安装（以下编译安装参数适用Squid-3.0-stable20）

./configure --prefix=/usr/local/squid --enable-async-io=100 --with-pthreads --enable-storeio="ufs,aufs,diskd" --enable-removal-policies="heap,lru" --enable-icmp --enable-delay-pools --enable-useragent-log --enable-regerer-log --enable-kill-parent-hack --enable-cachemgr-hostname=localhost --enable-arp-acl --enable-default-err-language=English --enable-err-languages="Simplify_Chinese English" --disable-poll --disable-wccp --disable-wccpv2 --disable-ident-lookups --disable-internal-dns --enable-basic-auth-helpers="NCSA" --enable-stacktrace --with-large-files --disable-mempools --with-filedescriptors=65536 --enable-ssl --enable-x-accelerator-vary --disable-snmp --with-aio --enable-linux-netfilter --enable-linux-tproxy

make && make install

Squid编译安装参数说明

–prefix=/usr/local/squid :指定软件的安装路径
–enable-gnuregex :支持GNU正则表达式。
–disable-carp: Cache数组路由协议（CARP）用来转发丢失的cache到父cache的数组或cluste
–enable-async-io=240等同于同时打开./configure如下三个选项
--with-aufs-threads=N_THREADS
--with-pthreads
--enable-storeio=ufs,aufs
这个主要是设置async模式来运行squid，我的理解是设置用线程来运行squid，如果服务器配置很不错，有1G以上内存，cpu使用SMP的方式的话可以考虑设成160或者更高。如果服务器比较糟糕就根据实际情况设了。另外此项还另cache文件支持aufs
--disable-wccp用于阻止或分发HTTP请求到一个或多个caches
–enable-icmp :加入icmp支持
–enable-kill-parent-hack :关掉suqid的时候，要不要连同父进程一起关掉
--enable-cachemgr-hostname=localhost：指定cachemgr-hostname值为localhost
-- enable-snmp :此选项可以让MRTG使用SNMP协议对服务器的流量状态进行监测，因此必须选择此项，使Squid支持SNMP接口。
–disable-ident-lookups :防止系统使用RFC931规定的身份识别方法。
--enable-delay-pools 开启squid延时池功能
–enable-cahce-digests :加快请求时，检索缓存内容的速度。
–enable-err-language=”Simplify_Chinese” 和
–enable-default-err-languages=”Simplify_Chinese” :指定出错是显示的错误页面为简体中文
--with-maxfd=65535指定最大文件描述
–enable-poll :指定使用Poll()函数，提升性能就是啦。
--disable-ident-lookups允许服务器利用客户端的特殊TCP连接来发现用户名
–enable-linux-netfilter :可以支持透明代理
--enable-large-cache-files开启大文件支持，支持2GB以上的文件
--disable-internal-dns使用自己的内部DNS查询
–enable-underscore :允许解析的URL中出现下划线，因为默认squid会认为带下划线的URL地址是非法的，并拒绝访问该地址
–enable-arp-acl :可以在规则设置中直接通过客户端的MAC地址进行管理，防止客户使用IP欺骗。

2、配置

创建squid用户

useradd squid -M -s /sbin/nologin

Squid学习笔记

修改SQUID用户及用户组，并开启cache_log和cache_store-log(access_log默认开启）

Squid学习笔记

打开cache_dir

Squid学习笔记

[root@asling-206 etc]# sed '/^#/d;/^$/d' squid.conf
acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
acl SSL_ports port 443
acl Safe_ports port 80  # http
acl Safe_ports port 21  # ftp
acl Safe_ports port 443  # https
acl Safe_ports port 70  # gopher
acl Safe_ports port 210  # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280  # http-mgmt
acl Safe_ports port 488  # gss-http
acl Safe_ports port 591  # filemaker
acl Safe_ports port 777  # multiling http
acl CONNECT method CONNECT
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localnet
http_access deny all
icp_access allow localnet
icp_access deny all
htcp_access allow localnet
htcp_access deny all
http_port 3128
hierarchy_stoplist cgi-bin ?
cache_dir ufs /usr/local/squid/var/cache 100 16 256
access_log /usr/local/squid/var/logs/access.log squid
cache_log /usr/local/squid/var/logs/cache.log
cache_store_log /usr/local/squid/var/logs/store.log
refresh_pattern ^ftp:  1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern (cgi-bin|\?) 0 0% 0
refresh_pattern .  0 20% 4320
cache_effective_user squid
cache_effective_group squid
icp_port 3130
coredump_dir /usr/local/squid/var/cache
[root@asling-206 etc]# sed '/^#/d;/^$/d' squid.conf
acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # 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
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localnet
http_access deny all
icp_access allow localnet
icp_access deny all
htcp_access allow localnet
htcp_access deny all
http_port 3128
hierarchy_stoplist cgi-bin ?
cache_dir ufs /usr/local/squid/var/cache 100 16 256
access_log /usr/local/squid/var/logs/access.log squid
cache_log /usr/local/squid/var/logs/cache.log
cache_store_log /usr/local/squid/var/logs/store.log
refresh_pattern ^ftp:  1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern (cgi-bin|\?) 0 0% 0
refresh_pattern .  0 20% 4320
cache_effective_user squid
cache_effective_group squid
icp_port 3130
coredump_dir /usr/local/squid/var/cache