1.解开压缩包
tar xzf squid-3.0.RELEASE-src.tar.gz 
cd /usr/local/squid/src/ squid-*.*.RELEASE / 

2.安装到/opt/case/squid目录
./configure --prefix=/opt/case/squid
make
make install 

3.启动服务
(1)产生Squid所有的缓存目录,执行./sbin/squid –z
如果提示 visible_hostname错误 ,找到 visible_hostname ， 
加一行 visible_hostname xx.xx就好了
如果提示 Permission denied ,执行 chmod -R 777 var/cache
(2)启动服务 ./sbin/squid
观察Squid是否运行使用命令 ./sbin/squid -k check 

squid3.0配置文件
acl all src 0.0.0.0/0.0.0.0
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 192.168.0.0/16
acl manager proto cache_object
http_access allow manager localhost
http_access allow localhost
http_access allow all

forwarded_for off
http_port 3128 transparent
cache_mem 256 MB
cache_swap_low 85
cache_swap_high 93

maximum_object_size 20480 KB
minimum_object_size 0 KB
maximum_object_size_in_memory 32 KB
cache_dir aufs /opt/app/squid/var/cache 10000 32 256
access_log /opt/app/squid/var/logs/access.log
#access_log /dev/null
cache_log /dev/null
cache_store_log none

acl QUERY urlpath_regex cgi-bin .php .cgi .avi .wmv .rm .ram .mpg .mpeg .zip .exe .rar
cache deny QUERY

half_closed_clients off

refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern ^gopher:        1440    0%      1440
refresh_pattern -i .gif         10      30%     30  ignore-reload
refresh_pattern -i .jpg         10      30%     30  ignore-reload
refresh_pattern -i .png         10      30%     30  ignore-reload
refresh_pattern -i .css         10      30%     30  ignore-reload
refresh_pattern -i .swf         10      30%     30  ignore-reload
refresh_pattern -i .cur         10      30%     30  ignore-reload
refresh_pattern -i .js$         10      30%     30  ignore-reload
refresh_pattern -i .htm         1       30%     20
refresh_pattern -i .html        1       30%     20
refresh_pattern .               1       20%     30

acl apache rep_header Server ^Apache
broken_vary_encoding allow apache
cache_effective_user squid
cache_effective_group squid