什么是Squid?
"Squid是一个高性能的代理缓存服务器，Squid支持FTP、gopher、HTTPS和HTTP协议。和一般的代理缓存软件不同，Squid用一个单独的、非模块化的、I/O驱动的进程来处理所有的客户端请求。"摘自百度百科。
安装Squid
yum -y install squid
配置Squid
#
# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1
# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed 允许访问IP(只允许这个ip做代理请求)
acl allowip src 14.29.10.100
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
# set out - ip 配置出口IP
acl ip118 myip 14.29.10.118
acl ip119 myip 14.29.10.119
acl ip120 myip 14.29.10.120
#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
http_access deny manager
# Deny requests to certain unsafe ports
http_access deny !Safe_ports
# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports
# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost
#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#
# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access allow allowip
# And finally deny all other access to this proxy
http_access deny all
# Squid normally listens to port 3128
# 设置代理端口
http_port 3228
#set out-ip 多公网IP关键配置;下面的配置是指
#若使用代理IP14.29.10.118则走ip118的ip(14.29.10.118);
#若使用代理IP14.29.10.119则走ip119的ip(14.29.10.119);
#若使用代理IP14.29.10.120则走ip120的ip(14.29.10.120)
tcp_outgoing_address 14.29.10.118 ip118
tcp_outgoing_address 14.29.10.119 ip119
tcp_outgoing_address 14.29.10.120 ip120
# Squid set log path etc.
dns_nameservers 8.8.8.8
visible_hostname aliserver
#透明代理关键配置
request_header_access Via deny all
request_header_access X-Forwarded-For deny all
cache_mem 100 MB
cache_swap_low 90
cache_swap_high 95
cache_dir ufs /home/squid/cache_dir 100 16 256
cache_access_log /home/squid/logs/access.log
cache_log /home/squid/logs/cache.log
cache_store_log /home/squid/logs/store.log
coredump_dir /home/squid/coredump_dir
pid_filename /home/squid/squid.pid
# Add any of your own refresh_pattern entries above these.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
初始化Squid
cd /usr/sbin/
./squid -z
启动Squid
cd /usr/sbin
./squid -s
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