Nginx实现WEB故障转移以及重定向

一、准备   
WEB2   http://127.0.0.1:82/01/a/0.txt (即:此web没有1.txt)

二、最终意义:  
1.用户请求http://www.c.com/a/1.txt  
2.nginx先对a/1.txt路么进行重定向http://www.c.com/01/a/1.txt (访问http://127.0.0.1:83/01/a/1.txt)  
3.发现http://www.c.com/01/a/1.txt没有资源  
5.成功  
 
三、Nginx配置
http {    
server_names_hash_bucket_size 64;   
  include       mime.types;    
default_type  application/octet-stream;       
#log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '    
#                  '$status $body_bytes_sent "$http_referer" '    
#                  '"$http_user_agent" "$http_x_forwarded_for"';
    #access_log  logs/access.log  main;    
fastcgi_intercept_errors on;    
sendfile        on;    
#tcp_nopush     on;
    #keepalive_timeout  0;     
keepalive_timeout  65;
    gzip  on;
     
upstream www.c.com {          
server 127.0.0.1:83; # 请求公有云地址       
server 127.0.0.1:81; # 请求源地址    
}    
    server {       
# proxy_set_header Host $http_host;       
# proxy_set_header X-Forward-For $remote_addr;
         proxy_set_header Host $host;         
proxy_set_header X-Real-IP $remote_addr;         
proxy_set_header X-Forwarded-For $remote_addr;        
  proxy_set_header REMOTE_ADD $remote_addr;              
   listen       83;        
server_name 127.0.0.1;                
charset utf-8;              
#access_log  logs/host.access.log  main;           
location /a {                        
proxy_pass http://127.0.0.1:82/01/a; ; #实现目录重定向        
}            
 
   server {       
# proxy_set_header Host $http_host;       
# proxy_set_header X-Forward-For $remote_addr;
         proxy_set_header Host $host;         
proxy_set_header X-Real-IP $remote_addr;         
proxy_set_header X-Forwarded-For $remote_addr;         
proxy_set_header REMOTE_ADD $remote_addr;                
listen       80;        
server_name www.c.com;                
charset utf-8;        
proxy_next_upstream http_404 error timeout invalid_header;  #实现故障转移       
  #access_log  logs/host.access.log  main;             
location /a {                            
proxy_pass http://www.c.com;       
  }          
  }  
}
 
原文地址:https://www.cnblogs.com/bobsoft/p/3693916.html