squid 2.5 stable快速安裝指南
阿土/Aborigen Yin
http://www.bsdbase.com
目標：在網關上為內網提供普通代理以及透明代理服務，以ip地址為訪問控制條件，不需要其他訪問控制。
#安裝
#如果是FreeBSD，建議安裝如下ports：
cd /usr/ports/devel/autoconf
make clean
make install clean
cd /usr/ports/devel/automake
make clean
make install clean
#首先，配置好你的網路，保證安裝squid的主機能正常上網；
ping www.163.com
#用域名是為了測試DNS解析；
#以下以root身份執行。
#獲得最新stable源碼
http://www.squid-cache.org
mkdir -p /usr/local/src/distfiles
cd /usr/local/src/distfiles
#FreeBSD
fetch http://www.squid-cache.org/Versions/v2/2.5/squid-2.5.STABLE1.tar.gz
#Linux
wget http://www.squid-cache.org/Versions/v2/2.5/squid-2.5.STABLE1.tar.gz
tar xfz squid-2.5.STABLE1.tar.gz -C ..
cd ../squid-2.5.STABLE1
./configure --prefix=/usr/local/squid
make
make install
#許可權改變是必要的；參考squid.conf
#cache_effective_user nobody
#cache_effective_group nobody
#默認使用
chown -R nobody:nobody /usr/local/squid/var
#按照你的需要配置；
#vi /usr/local/squid/etc/squid.conf
# TAG: http_port
# Usage: port
# hostname:port
# 1.2.3.4:port
#Default:
# http_port 3128
http_port 60080
#逃避討厭的代理掃描，使用一個自定義的端口；
#設置不代理的url，一些動態網頁，比如江湖、聊天室。
# TAG: no_cache
# A list of ACL elements which, if matched, cause the request to
# not be satisfied from the cache and the reply to not be cached.
# In other words, use this to force certain objects to never be cached.
#
# You must use the word 'DENY' to indicate the ACL names which should
# NOT be cached.
#
#We recommend you to use the following two lines.
acl QUERY urlpath_regex cgi-bin \? asp php shtml php3 cgi
no_cache deny QUERY
# ACCESS CONTROLS
# -----------------------------------------------------------------------------
# TAG: acl
# Defining an Access List
#
# acl aclname acltype string1 ...
# acl aclname acltype "file" ...
#
# when using "file", the file should contain one item per line
#定義內網（假設有172.16.0.0/16;192.168.0.0/16;10.0.0.0/8）;
acl lan-a src 172.16.0.0/16
acl lan-b src 192.168.0.0/16
acl lan-c src 10.0.0.0/8
#squid的默認配置是拒絕所有連接；
#Default:
# http_access deny all
#
#對上述內網地址開放
http_access allow lan-a
http_access allow lan-b
http_access allow lan-c
#Recommended minimum configuration:
#
#以下設置透明代理，如果你不用透明代理，可以跳過。
#在網關的防火牆上設置重定向，把內網對80的訪問請求重定向到squid：
#Ipfilter rules
#rdr $LAN_NIC 0/0 port 80 ->; $SQUID_HOST_ADDR port $SQUID_PROXY_PORT tcp
#Iptables rules
#iptables -t nat -A PREROUTING -i $LAN_NIC -p tcp -m tcp --dport 80 -j DNAT --to $SQUID_HOST_ADDR:$SQUID_PROXY_PORT
#限定對指定來源的請求做重定向；
#iptables -t nat -A PREROUTING -i $LAN_NIC -p tcp -m tcp -s $INTERNAL_NETWORK/$INTERNAL_MASK --dport 80 -j DNAT --to $SQUID_HOST_ADDR:$SQUID_PROXY_PORT
#啟用透明代理
httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_with_proxy on
#作透明代理的同時緩存
#注意下面一行，默認是off的.
httpd_accel_uses_host_header on
#初始化緩衝目錄
/usr/local/squid/sbin/squid -z
#開機關機管理腳本
#vi /usr/local/sbin/squid.sh
#!/bin/sh
case "$1" in
start)
if [ -x /usr/local/squid/sbin/squid ]; then
/usr/local/squid/sbin/squid && echo . && echo 'Squid proxy server started.'
fi
;;
stop)
killall squid && echo . && echo 'Squid proxy server stopped.'
;;
restart)
echo .
echo "Restart Squid proxy server ......"
$0 stop
sleep 30
$0 start
;;
*)
echo "$0 start | stop | restart"
;;
esac
#end of /usr/local/sbin/squid.sh
chmod 700 /usr/local/sbin/squid.sh
#開機自動執行
#FreeBSD
ln -s /usr/local/sbin/squid.sh /usr/local/etc/rc.d
#Linux
ln -s /usr/local/sbin/squid.sh /etc/rc.d/rc3.d/S99Squid-prxoy
