squid3配置要點
首先需要apt-get update
然後安裝apt-get install squid
配置和開啟
vi /usr/local/squid/etc/squid.conf
3.1更改監聽端口
http_port 9090
3.2更改訪問控制
http_access allow all
3.3開啟squid
3.3.1初始化squid.conf裡的cache目錄
------------------非常重要的命令-----------------
/usr/local/squid/sbin/squid -z
3.3.2對squid.conf進行排錯
/usr/local/squid/sbin/squid -k parse
3.3.3前台啟動squid
/usr/local/squid/sbin/squid -N -d1
3.3.4後台運行squid
/usr/local/squid/sbin/squid -s
3.3.5 停止
/usr/local/squid/sbin/squid -k shutdown
3.3.5重新引導修改過的squid.conf
/usr/local/squid/sbin/squid -k reconfigure
----------------------本人配置，親測可用---------------
2013/06/29 01:19:40| Processing Configuration File: /etc/squid3/squid.conf (depth 0)
2013/06/29 01:19:40| Processing: acl manager proto cache_object
2013/06/29 01:19:40| Processing: acl localhost src 127.0.0.1/32 ::1
2013/06/29 01:19:40| Processing: acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1
2013/06/29 01:19:40| Processing: acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
2013/06/29 01:19:40| Processing: acl SSL_ports port 443
2013/06/29 01:19:40| Processing: acl Safe_ports port 80 # http
2013/06/29 01:19:40| Processing: acl Safe_ports port 21 # ftp
2013/06/29 01:19:40| Processing: acl Safe_ports port 443 # https
2013/06/29 01:19:40| Processing: acl Safe_ports port 70 # gopher
2013/06/29 01:19:40| Processing: acl Safe_ports port 210 # wais
2013/06/29 01:19:40| Processing: acl Safe_ports port 1025-65535 # unregistered ports
2013/06/29 01:19:40| Processing: acl Safe_ports port 280 # http-mgmt
2013/06/29 01:19:40| Processing: acl Safe_ports port 488 # gss-http
2013/06/29 01:19:40| Processing: acl Safe_ports port 591 # filemaker
2013/06/29 01:19:40| Processing: acl Safe_ports port 777 # multiling http
2013/06/29 01:19:40| Processing: acl CONNECT method CONNECT
2013/06/29 01:19:40| Processing: http_access allow manager localhost
2013/06/29 01:19:40| Processing: http_access allow localnet
2013/06/29 01:19:40| Processing: http_access allow localhost
2013/06/29 01:19:40| Processing: http_access allow all
2013/06/29 01:19:40| Processing: http_port 0.0.0.0:3128
2013/06/29 01:19:40| Processing: cache_mem 1000 MB
2013/06/29 01:19:40| Processing: maximum_object_size_in_memory 1024 KB
2013/06/29 01:19:40| Processing: cache_dir ufs /var/spool/squid3 1024 16 256
2013/06/29 01:19:40| Processing: maximum_object_size 32327 KB
2013/06/29 01:19:40| Processing: cache_swap_low 90
2013/06/29 01:19:40| Processing: cache_swap_high 95
2013/06/29 01:19:40| Processing: access_log /var/log/squid3/access.log squid
2013/06/29 01:19:40| Processing: cache_store_log /var/log/squid3/store.log
2013/06/29 01:19:40| Processing: pid_filename /var/run/squid3.pid
2013/06/29 01:19:40| Processing: cache_log /var/log/squid3/cache.log
2013/06/29 01:19:40| Processing: coredump_dir /var/spool/squid3
2013/06/29 01:19:40| Processing: refresh_pattern ^ftp: 1440 20% 10080
2013/06/29 01:19:40| Processing: refresh_pattern ^gopher: 1440 0% 1440
2013/06/29 01:19:40| Processing: refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
2013/06/29 01:19:40| Processing: refresh_pattern (Release|Packages(.gz)*)$ 0 20% 2880
2013/06/29 01:19:40| Processing: refresh_pattern . 0 20% 4320
2013/06/29 01:19:40| Processing: cache_mgr xxx
2013/06/29 01:19:40| Processing: visible_hostname xxx.xxx.xxx.xxx
2013/06/29 01:19:40| Processing: dns_nameservers xxx.xxx.xxx.xxx
squid 最終的解決問題不在於上面的配置。而在於相關日志、緩存文件的權限；
squid 3 顯示啟動：squid3 -N -d1,發現
直接賦予swap.state文件夾權限，即可。
同時，對於access.log,cache.log 的日志權限也需要考慮提前變更。這些在squid3 -k parse 中就已經提到。
asset ion failure mem->swap out.sio=self 出現此錯誤，目前公網上找不到答案，唯一解決方案就是減少IP，不再分配新的ip；或者是通過squid3 -z 重新初始化目錄
切記：以後再改動conf 文件的時候，先將原來的文件進行備份。
