測試配置

• 後端網站地址192.168.1.100，執行在物理機
• 虛擬機器server2008192.168.241.141
• 虛擬機器ubuntu16192.168.241.132安裝apache2和nginx

Apache2.4

配置環境為ubuntu 16.04 server

啟用反向代理模組

sudo a2enmod proxy
# 如果沒有該模組
# apt-get install libapache2-mod-proxy*
systemctl restart apache2

複製一份預設虛擬站點檔案000-default.conf,新增以下內容

# ProxyPreserveHost On 填寫原始的HOST到後端伺服器
ProxyPreserveHost On
ProxyPass / http://192.168.1.100:5000/
ProxyPassReverse / http://192.168.1.100:5000/

更多詳細內容可參考 或 apache官網

https://www.digitalocean.com/community/tutorials/how-to-use-apache-as-a-reverse-proxy-with-mod_proxy-on-ubuntu-16-04

nginx

修改default配置中location /

 location / {
                # First attempt to serve request as file, then
 

                # as directory, then fall back to displaying a 404.
                # try_files $uri $uri/ =404;
                proxy_pass  http://192.168.1.100:5000;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set
 
_header Host $http_host;
        }

重啟nginx

IIS

安裝IIS模組URL Rewrite和Application Request Routing

• http://download.microsoft.com/download/E/9/8/E9849D6A-020E-47E4-9FD0-A023E99B54EB/requestRouter_amd64.msi
• http://download.microsoft.com/download/E/A/9/EA9F19BC-0EEB-49C9-B32D-56852BBE56DA/rewrite_amd64_zh-CN.msi

安裝完畢後應該有如下圖示

編輯預設站點重定向

圖片中地址依據本次試驗應填寫192.168.1.100:5000

試驗網站

192.168.1.100:5000

# coding=utf-8
#

from flask import Flask, request


app = Flask(__name__)


@app.route('/')
def index():
    s = ''
    for _ in request.headers:
        k, v = _
        s += '<p>%s: %s</p>' % (k, v)
    return '%s' % s


app.run(host='0.0.0.0')

不同代理伺服器對應的訊息頭

apache2

nginx

IIS

總結

保留原始Host

# apache2
ProxyPreserveHost On
# nginx
proxy_set_header Host $http_host;

獲取原始客戶端訪問ip
都可以從X-Forwarded-For中提取第一個ip值

Apache2 和IIS設定X-Real-IP值獲取客戶端ip可能需要額外配置，需要查詢相關資料