最近公司需要一個 proxy 讓業務能使用美國的IP處理一些工作上的需求
所以選用centos 7 來架設 Squid Proxy 正向代理的服務
需求:
(a)允許 https 的 SSL Proxy 功能
(b)假設指定只有 來自 11.11.22.22/32 與 11.11.11.0/24 的 IP 範圍才可以使用,不在IP白名單的使用密碼驗證
(c)隱藏使用者真實IP
(一)安裝步驟：
# yum install -y squid httpd-tools
(二)備份原squid.conf檔,並且貼上以下所有內容取代原本的
# mv /etc/squid/squid.conf /etc/squid/squid.conf.bak
# vi /etc/squid/squid.conf
引用:
# Example rule allowing access from your local networks.
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 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
acl our_networks src 11.11.22.22/32 11.11.11.0/24
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow our_networks
http_access allow localhost manager
http_access deny manager
http_access deny to_localhost
http_access allow localnet
http_access allow localhost
http_port 3128
cache_dir ufs /var/spool/squid 100 16 256
coredump_dir /var/spool/squid
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
visible_hostname squid
# Auth Squid User
auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/squid/auth/passwd
auth_param basic children 5
auth_param basic realm Hello Use Winho Proxy Server
acl squid_user proxy_auth REQUIRE
http_access allow squid_user
# Hide Realip
forwarded_for delete
via off
follow_x_forwarded_for deny all
request_header_access X-Forwarded-For deny all
# And finally deny all other access to this proxy
#http_access deny all
http_access allow all
(三) 建立密碼檔
第一次建立帳號 =>
# mkdir /etc/squid/auth/
# htpasswd -c /etc/squid/auth/passwd adj
之後建立帳號或修改密碼
# htpasswd /etc/squid/auth/passwd adj2
第一次啟動與設定自動啟動
# systemctl restart squid.service
# systemctl enable squid.service
(四)驗證測試
外部測試方式：
# curl --proxy proxy.adj.com.tw:3128 https://www.google.com
外部測試方式(需要帳密的情況下)：
# curl -U adj:adj --proxy proxy.adj.com.tw:3128 ifconfig.me
這樣就可以囉～～
參考資料： https://www.ichiayi.com/wiki/tech/squid
