windows版
代理下載
安裝配置
1、安裝,不停next即可；
2、將squid/etc/下的default結尾的文件都去掉default，即變爲conf文件
3、根據本機需要配置squid.conf文件（每次修改配置文件後，squid需要重啓生效）
配置文件示例
# Recommended minimum configuration:
#
# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl all src all
#acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
#acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
#acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
#acl localnet src fc00::/7 # RFC 4193 local private network range
#acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines
acl localnet src XX.XX.XX.XX/XX #host IP
acl SSL_ports port 443
acl SSL_ports port 9418
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 Safe_ports port 53 # dns
acl Safe_ports port 9418 # git port
acl CONNECT method CONNECT
#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
#http_access allow localhost manager
#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 localnet
http_access allow localhost
# And finally deny all other access to this proxy
#http_access deny all
http_access allow all
# Squid normally listens to port 808
http_port 808
# Uncomment the line below to enable disk caching - path format is /cygdrive/<full path to cache folder>, i.e.
cache_dir aufs C:\Squid\var\cache 3000 16 256
# Leave coredumps in the first cache dir
#coredump_dir /var/cache/squid
# 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
positive_dns_ttl 60
dns_nameservers XX.XX.XX.XX #DNS server
tcp_recv_bufsize 65535 bytes
cache_mem 100 MB
max_filedescriptors 40960
linux版
此處爲原文
配置正向代理
步驟：
（1）安裝squid，例如在ubuntu中：
sudo apt-get update
sudo apt-get install squid
（2）確保主機名能夠被解析，可以ping主機名進行測試
（3）設置配置文件/etc/squid/squid.conf修改如下選項
可以找到httpd_port修改代理服務的端口號
（4）squid -z：初始化如圖
（5）service squid start：啓動服務
（6）設置客戶端：打開瀏覽器工具-internet選項-連接-局域網設置-設置代理服務器的ip及端口號即可