Squid安裝

1、概述

1.1安裝squid軟件

在新服務器上安裝squid軟件。 css

操做系統:centOS 5.5 html

軟件信息:squid-2.6.STABLE24.tar.gz linux

目的:使域名bj.abc.com轉跳到www.abc.com 緩存

做用:起到加速做用。 服務器

2、安裝步驟

2.1得到程序

從已經安裝過squid的機器(11.11.11.11)獲取軟件版本信息。Squid –v dom

下載軟件安裝包: ide

wget http:#www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE24.tar.gz 網站

 

2.2 安裝squid程序

cd /usr/local/ ui

wget http:#www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE24.tar.gz spa

tar -zxvf squid-2.6.STABLE24.tar.gz

cd squid-2.6.STABLE24

./configure --prefix=/usr/local/squid --enable-gnuregex --enable-icmp --enable-linux-netfilter --enable-default-err-language="Simplify_Chinese"

 --enable-follow-x-forwarded-for --enable-storeio=aufs,ufs --enable-kill-parent-hack --enable-cache-digests --with-maxfd=65536 --with-pthreads --enabl

e-dlmalloc --enable-poll --enable-stacktraces --enable-removal-policies=heap,lru --enable-delay-pools

make

make install

useradd squid

groupadd squid

mkdir /var/log/squid                                           #創建日誌目錄

chown squid:squid /var/log/squid                              #用戶squid用戶和組來運行squid

mkdir /var/spool/squid                                         #創建squid緩存目錄

chown squid:squid /var/spool/squid                            #一樣,給權限

/usr/local/squid/sbin/squid -z                                   #創建緩存目錄

echo "/usr/local/squid/sbin/squid -Ds" >>/etc/rc.d/rc.local     #添加開機啓動

 

2.3 配置squid.conf配置文件

備份配置文件:

mv squid.conf squid.conf_bak

 

生成新的配置文件:

vi squid.conf

 

配置內容原文:

visible_hostname Cache_server

cache_mgr sysop@izptec.com

error_directory /usr/local/squid/share/errors/Simplify_Chinese

cache_dir aufs /usr/local/squid/var/cache 80000 16 256

 

maximum_object_size_in_memory 160 KB

store_avg_object_size 40 KB

cache_effective_user squid

cache_effective_group squid

negative_ttl 10 seconds

 

http_port 80 vhost vport

icp_port 0

 

redirect_children 128

redirect_rewrites_host_header off

redirector_bypass off

 

cache_peer www.abc.com parent 80 0 no-query round-robin originserver name=128

cache_peer_domain 128 bj.abc.com

 

acl all src 0.0.0.0/0.0.0.0

acl ControlCentre src 127.0.0.1 118.66.252.200

acl PURGE method PURGE

http_access allow PURGE ControlCentre

http_access deny PURGE

http_access allow all

 

emulate_httpd_log on

strip_query_terms off

 

refresh_pattern -i .*.(html|htm|js|css|swf|gif|GIF|JPG|jpg|jpeg|JPEG|flv|wmv|mp3|mp4|avi|rm) 2880 50% 5760 ignore-reload ignore-no-cache

logformat common %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %<st %Ss:%Sh

logformat combined %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %<st "%ru" "%{User-Agent}>h"

logformat squid [%tl] %6tr %>a %Ss/%03Hs %<st %rm %ru %Sh/%<A %mt "%{Referer}>h" "%{User-Agent}>h"

access_log /usr/local/squid/var/logs/access.log  squid

cache_log none

cache_store_log none

 

 

配置內容註解:

 

visible_hostname Cache_server      # cache服務器的名稱

cache_mgr sysop@izptec.com        # 緩存管理員

error_directory /usr/local/squid/share/errors/Simplify_Chinese   #定義錯誤日誌語言爲中文

cache_dir aufs /usr/local/squid/var/cache 80000 16 256          # cache目錄和大小的設置

 

maximum_object_size_in_memory 160 KB

#squid內存最大存儲對象爲160 KB,超過這個值將不保存在內存,這個對squid加速效果影響比較大,有的人將這個設置爲8KB而通常網站的圖像都大於8KB,若是squid每次都從磁盤爲外部請求提供文件,那麼是很慢的。

 

store_avg_object_size 40 KB      #squid 第一次緩衝數據的大小

cache_effective_user squid        #squid用戶

cache_effective_group squid       #squid

negative_ttl 10 seconds       #404錯誤,緩存時間設置爲10

http_port 80 vhost vport      # 監聽80端口,並配置爲加速模式

icp_port 0                     # cache服務器之間通訊的端口UDP

 

redirect_children 128

redirect_rewrites_host_header off  # 禁止squid在使用重定向器時,更新請求的Host頭部

redirector_bypass off               #禁止重定向器在忙碌時跳出

 

cache_peer www.abc.com parent 80 0 no-query round-robin originserver name=128 

#定義www.adbfp.com 爲該squid的父節點並定義一個名稱爲128

 

cache_peer_domain 128 bj.abc.com

#定義父節點容許接受該squid對其發出的bj.adbfp.com請求

 

acl all src 0.0.0.0/0.0.0.0

acl ControlCentre src 127.0.0.1 118.66.252.200

acl PURGE method PURGE

http_access allow PURGE ControlCentre

http_access deny PURGE

http_access allow all

 

emulate_httpd_log on

strip_query_terms off

 

refresh_pattern -i .*.(html|htm|js|css|swf|gif|GIF|JPG|jpg|jpeg|JPEG|flv|wmv|mp3|mp4|avi|rm) 2880 50% 5760 ignore-reload ignore-no-cache

 

# -i 爲忽略大小寫 

#ignore-reload: 忽略httpno-cache頭,reload

#ignore-private: 忽略httpprivate

#ignore-no-cache:忽略Pragma: no-cacheCache-controlno-cache

 

logformat common %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %<st %Ss:%Sh

logformat combined %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %<st "%ru" "%{User-Agent}>h"     #日誌文件內容格式

logformat squid [%tl] %6tr %>a %Ss/%03Hs %<st %rm %ru %Sh/%<A %mt "%{Referer}>h" "%{User-Agent}>h"        #定義生成訪問日誌的格式

access_log /usr/local/squid/var/logs/access.log  squid   #定義訪問日誌的路徑

cache_log none        #不生成緩存日誌文件

cache_store_log none

 

2.4啓動squid程序

 

啓動squid程序:

/usr/local/squid/sbin/squid -Ds

 

更改配置文件後,從新加載:

/usr/local/squid/sbin/squid -k reconfigure

 

中止squid程序:

/usr/local/squid/sbin/squid -k shutdown

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