Global Traffic Director - 需要 Ubuntu、LAMP 和 Nginx 帮助的 DO droplet

Posted 2023-02-23

【中文标题】Global Traffic Director - 需要 Ubuntu、LAMP 和 Nginx 帮助的 DO droplet

【英文标题】：Global Traffic Director - On DO droplet with Ubuntu, LAMP and Nginx help needed

【发布时间】：2015-04-23 02:44:32

【问题描述】：

我一直在尝试关注 Digital Ocean 以下示例： https://www.digitalocean.com/community/tutorials/how-to-use-nginx-as-a-global-traffic-director-on-debian-or-ubuntu

已经用 Ubuntu 设置了一个 droplet，并且已经有 LAMP 堆栈。

尽管在 LAMP 堆栈顶部配置了 Nginx 以尝试使用 GeoIP 数据库，但当我运行包含以下代码的 test.php 文件时：

 <?php
     if (getenv(HTTP_X_FORWARDED_FOR)) 
        $sname = getenv(SERVER_NAME);
        $sipaddress = getenv(SERVER_ADDR);
        $pipaddress = getenv(HTTP_X_FORWARDED_FOR);
        $ipaddress = getenv(REMOTE_ADDR);
        echo "$sname server has address : $sipaddress";
        echo "<br />\n";
        echo "Your Proxy IP address is : ".$pipaddress. " (via $ipaddress) " ;
     else 
        $servername = getenv(SERVER_NAME);
        $serveripaddress = getenv(SERVER_ADDR);
        $ipaddress = getenv(REMOTE_ADDR);
        echo "$servername server has address : $serveripaddress";
        echo "<br />\n";
        echo "Your IP address is : $ipaddress";
    
    $country = getenv(GEOIP_COUNTRY_NAME);
    $country_code = getenv(GEOIP_COUNTRY_CODE);
    echo "<br/>Your country : $country ( $country_code ) ";
?>

我得到以下实时响应：

www.mydomain.com server has address : 12.34.56.78
Your IP address is : 87.65.43.21
Your country : ( )

如您所见，IP 地址是正确的，这表明 PHP 工作正常，但不幸的是，尽管本地存在，但所有 GEOIP 变量都没有工作。

所以我的问题是：

我在哪里搞砸了？

GeoIP 数据为什么不通过 Nginx？

---

这是我配置服务器时采取的一些额外步骤。

我将默认配置文件从 /etc/nginx/sites-available 重命名为我的域名，并确保在 /etc/nginx/sites-enabled 中创建一个指向它的新链接。

那么我的配置文件现在是这样的：

map $geoip_city_continent_code $closest_server 
  default eu.mydomain.com;
  US      US.mydomain.com;
  AS      as.mydomain.com;


server 

server_name mydomain.com
            www.mydomain.com
            eu.mydomain.com
            us.mydomain.com
            as.mydomain.com;

if ($closest_server != $host) 
  rewrite ^ $scheme://$closest_server$request_uri break;


listen 80 eu.mydomain.com;
listen [::]:80 eu.mydomain.com ipv6only=on;

root /var/www/html;
index index.html index.htm;

# Make site accessible from http://localhost/
server_name localhost;

最终目标是拥有 3 台服务器（美国、欧洲、亚洲），以欧盟为中心，并使用以下任一服务器重新路由到最近的服务器：us.mydomain.com 或 eu.mydomain.com 或 as.mydomain。 com

我希望这足够清楚，任何指针都会很棒！

感谢您的宝贵时间。

【问题讨论】：

所以我将堆栈更改为 LEMP，并按照这些关于 fastcgi_param piwik.org/faq/how-to/faq_166

的附加步骤

这让我能够成功地看到我的呼叫来自哪里：您的国家：美国（US），但不幸的是，如果我呼叫欧洲服务器，它不会自动将我重新路由回美国服务器...任何想法为什么？

【参考方案1】：

我最终在构建液滴时使用了 LEMP 堆栈，并从 Digital Ocean 文档中发现了一些缺失的信息，如下所示：

在 /etc/nginx/nginx.conf 文件中添加这两行：

geoipcountry /usr/share/GeoIP/GeoIP.dat; geoipcity /usr/share/GeoIP/GeoLiteCity.dat;

然后在/etc/nginx/fastcgiparams末尾添加：

fastcgiparam REDIRECTSTATUS 200;
fastcgiparam GEOIPADDR $remoteaddr;
fastcgiparam GEOIPCOUNTRYCODE $geoipcountrycode;
fastcgiparam GEOIPCOUNTRYNAME $geoipcountryname;
fastcgiparam GEOIPREGION $geoipregion;
fastcgiparam GEOIPREGIONNAME $geoipregionname;
fastcgiparam GEOIPCITY $geoipcity;
fastcgi_param GEOIP_CITY_CONTINENT_CODE $geoip_city_continent_code; #EDIT
fastcgiparam GEOIPAREACODE $geoipareacode;
fastcgiparam GEOIPLATITUDE $geoiplatitude;
fastcgiparam GEOIPLONGITUDE $geoiplongitude;
fastcgiparam GEOIPPOSTALCODE $geoippostal_code;

那么在 /etc/nginx/sites-available/default 中默认文件中各个服务器之间的区别也在map $geoipcountrycode $closest_server 级别处理如下：

编辑！！

美国服务器：

map $geoip_city_continent_code $closest_server 
  default www.yourdomain.com;

  AF      eu.yourdomain.com;  #Africa
  AS      as.yourdomain.com;  #Asia
  EU      eu.yourdomain.com;  #Europe
  # NA      www.yourdomain.com;  #North America
  OC      as.yourdomain.com;  #Oceania
  # SA      www.yourdomain.com;  #South America

欧洲服务器：

map $geoip_city_continent_code $closest_server 
  default eu.yourdomain.com;

  # AF      eu.yourdomain.com;  #Africa
  AS      as.yourdomain.com;  #Asia
  # EU      eu.yourdomain.com;  #Europe
  NA      www.yourdomain.com;  #North America
  OC      as.yourdomain.com;  #Oceania
  SA      www.yourdomain.com;  #South America

亚洲服务器：

map $geoip_city_continent_code $closest_server 
  default as.yourdomain.com;

  AF      eu.yourdomain.com;  #Africa
  # AS      as.yourdomain.com;  #Asia
  EU      eu.yourdomain.com;  #Europe
  NA      www.yourdomain.com;  #North America
  # OC      as.yourdomain.com;  #Oceania
  SA      www.yourdomain.com;  #South America

应该这样做......

您还可以通过在正文中添加包含以下代码的 test.php 文件来测试您的设置：

<?php
if (getenv(HTTPXFORWARDEDFOR)) 
  $pipaddress = getenv(HTTPXFORWARDEDFOR);
  $ipaddress = getenv(REMOTEADDR);
  echo "Your Proxy IP address is : ".$pipaddress. " (via $ipaddress) " ;
 else 
  $ipaddress = getenv(REMOTEADDR);
  echo "Your IP address is : $ipaddress";

$country = getenv(GEOIPCOUNTRYNAME);
$countrycode = getenv(GEOIPCOUNTRYCODE);
$geoip_city_continent_code = getenv(GEOIP_CITY_CONTINENT_CODE);
echo "<br/>Your country : $country ( $countrycode ) ";
echo "<br/>Your continent : $geoip_city_continent_code ";
?>

应该返回如下内容：

Your IP address is : 12.34.56.78
Your country : United States ( US )
Your continent : NA

如果您在美国并且将您重新路由到 www.yourdomain.com 等......

EDIT 2 - 用于多站点处理

这是为不同的服务器服务的

map $geoip_city_continent_code $closest_server 
  AF      eu.domain.com;  #Africa
  AS      as.domain.com;  #Asia
  EU      eu.domain.com;  #Europe
  NA      us.domain.com;  #North America
  OC      as.domain.com;  #Oceania
  SA      us.domain.com;  #South America


# retoute http://domain.com and http://www.domain.com to http://us.domain.com
server 

  listen 80 default_server; # only for one of the local domains other wise the others should only be: listen 80;
  listen [::]:80 default_server ipv6only=on; # only for one of the local domains other wise the others should only be: listen [::]:80;

  server_name domain.com
              www.domain.com;

  return 301 http://us.domain.com$request_uri;


# handles
server 
  listen 80;
  listen [::]:80;

  root /var/www/domain.com/html;
  index index.php index.html index.htm;

  # Make site accessible from http://localhost/
  server_name  us.domain.com;

  # firs part of dual condition check.
  # checks in the incoming host (us.domain.com) is not equal to $closest_server depending on contry code
  if ($closest_server != $host) 
    set $test  A;
  

  #second part of dual condition checks that the incoming host us.domain.com is the same as the server_name so that there is no messing around with other domain names
  if ($host ~* $server_name) 
    set $test  "$testB";
  

  # checks that the above 2 conditions are met and if so redirect to other global server with appropriate subdomain eu.domain.com or whatever you set up
  if ($test = AB) 
    rewrite ^ $scheme://$closest_server$request_uri break;
  

  # otherwise you are at the closest server and so serve the data
  location / 
    try_files $uri $uri/ =404;