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正向代理 Squid Proxy Server 安裝設定

99770 發表於: 2021-3-26 09:59 來源: ADJ網路控股集團


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

QUOTE:

# 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

這樣就可以囉~~

參考資料: https://www.ichiayi.com/wiki/tech/squid