nginx反向代理報錯400

當用nginx作負載均衡的時候,nginx的配置文件以下:html

upstream server_pools {
         server 10.0.0.7:80  weight=1;
         server 10.0.0.8:80  weight=1;

當客戶端訪問時出現報錯以下:nginx

[root@lb02 ~]# curl  www.hahaetiantian.org
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>400 Bad Request</title>
</head><body>
<h1>Bad Request</h1>
<p>Your browser sent a request that this server could not understand.<br />
</p>
<p>Additionally, a 400 Bad Request
error was encountered while trying to use an ErrorDocument to handle the request.</p>
</body></html>
[root@lb02 ~]# curl  www.hahaetiantian.org
www

查看日誌報錯並不能找到緣由,可是根據400報錯以及對http協議的原理了解得知是由於請求頭的緣由,最後在網上找到解決辦法,緣由是由於upstream後面的名稱有下劃線使得代理沒法識別,修改以下:apache

upstream server-pools {
         server 10.0.0.7:80  weight=1;
         server 10.0.0.8:80  weight=1;

而後再次訪問結果以下:負載均衡

[root@lb02 ~]# curl  www.etiantian.org
apache www
[root@lb02 ~]# curl  www.etiantian.org
www
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