Nginx Practice in Windows - 3

Reference

Description

    server {
        listen       8080;
        server_name  example.com;
        location /test {
           return 200 'example.com';
        }
    }
nginx 這個 server 區塊的設定中, server_name 是用來判斷 request 的 Host header 是打算導給哪個 server. 比方說這個例子就是如果 header 指定了 example.com 會導向這個 server.

Practice

如果有找到與 request header 的 Host 相對應的 server, 就會導過去

  1. setup nginx.conf
        server {
        listen       8080;
        server_name  server1;
        location /test {
            return 200 'server1';
        }
    } 
    server {
        listen       8080;
        server_name  server2;
        location /test {
            return 200 'server2';
        }
    }
  2. run "nginx -s reload"
  3. run "telnet 127.0.0.1 8080"
  4. send request
    GET /test HTTP/1.1
Host: server2:8080
Connection: close
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36
Accept: */*
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-TW,zh;q=0.8,en-US;q=0.6,en;q=0.4
  5. get response 
    HTTP/1.1 200 OK
Server: nginx/1.4.3
Date: Mon, 21 Oct 2013 23:04:24 GMT
Content-Type: application/octet-stream
Content-Length: 7
Connection: close

server2

沒有指定誰是預設 server 而且透過 request header 的 Host 又找不到相對應的 server_name, 就會回傳第一個.

  1. setup nginx.conf 
        server {
        listen       8080;
        server_name  server1;
        location /test {
            return 200 'server1';
        }
    } 
    server {
        listen       8080;
        server_name  server2;
        location /test {
            return 200 'server2';
        }
    }
  2. run "nginx -s reload"
  3. run "telnet 127.0.0.1 8080"
  4. send request 
    GET /test HTTP/1.1
Host: 127.0.0.1:8080
Connection: close
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36
Accept: */*
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-TW,zh;q=0.8,en-US;q=0.6,en;q=0.4
  5. get response 
    HTTP/1.1 200 OK
Server: nginx/1.4.3
Date: Mon, 21 Oct 2013 22:55:05 GMT
Content-Type: application/octet-stream
Content-Length: 7
Connection: close

server1

有指定 default_server, 當 request header Host 找不到相對應的 server_name 時, 就會導向 default server. (文件上說0.8.21之後使用 default_server, 之前使用 default. 不過我在 nginx-1.4.3 for Windows 要使用 default 才可以. 是 Linux 版的才可改 default_server?)

  1. setup nginx.conf 
        server {
        listen       8080;
        server_name  server1;
        location /test {
            return 200 'server1';
        }
    } 
    server {
        listen       8080 default;
        server_name  server2;
        location /test {
            return 200 'server2';
        }
    }
  2. run "nginx -s reload"
  3. run "telnet 127.0.0.1 8080"
  4. send request
    GET /test HTTP/1.1
Host: 127.0.0.1:8080
Connection: close
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36
Accept: */*
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-TW,zh;q=0.8,en-US;q=0.6,en;q=0.4
  5. get response 
    HTTP/1.1 200 OK
Server: nginx/1.4.3
Date: Mon, 21 Oct 2013 22:59:23 GMT
Content-Type: application/octet-stream
Content-Length: 7
Connection: close

server2






如果指定的 server 包含不同 ip, 那每個 ip 就會有自己的 default server.






    

  1. setup nginx.conf
        server {
        listen       127.0.0.1:8080;
        server_name  server1;
        location /test {
            return 200 'server1';
        }
    } 
    server {
        listen       127.0.0.1:8080;
        server_name  server2;
        location /test {
            return 200 'server2';
        }
    } 
 server {
        listen       127.0.0.2:8081;
        server_name  server3;
        location /test {
            return 200 'server3';
        }
    } 
    server {
        listen       127.0.0.2:8081;
        server_name  server4;
        location /test {
            return 200 'server4';
        }
    }

    
 
    2. 

  2. run "nginx -s reload"
    3. 

  3. run "telnet 127.0.0.1 8080"
    4. 

  4. send request
    GET /test HTTP/1.1
Host: localhost
Connection: close
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36
Accept: */*
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-TW,zh;q=0.8,en-US;q=0.6,en;q=0.4 
    

    5. 

  5. get responseget response
    HTTP/1.1 200 OK
Server: nginx/1.4.3
Date: Mon, 21 Oct 2013 23:20:33 GMT
Content-Type: application/octet-stream
Content-Length: 7
Connection: close

server1
    

    6. 

  6. run "telnet 127.0.0.2 8081"
    7. 

  7. send request
    GET /test HTTP/1.1
Host: localhost
Connection: close
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36
Accept: */*
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-TW,zh;q=0.8,en-US;q=0.6,en;q=0.4 
    

    8. 

  8. get responseget response
    HTTP/1.1 200 OK
Server: nginx/1.4.3
Date: Mon, 21 Oct 2013 23:21:52 GMT
Content-Type: application/octet-stream
Content-Length: 7
Connection: close

server3
    

    9. 

  9. setup nginx.conf
        server {
        listen       127.0.0.1:8080;
        server_name  server1;
        location /test {
            return 200 'server1';
        }
    } 
    server {
        listen       127.0.0.1:8080 default;
        server_name  server2;
        location /test {
            return 200 'server2';
        }
    } 
 server {
        listen       127.0.0.2:8081;
        server_name  server3;
        location /test {
            return 200 'server3';
        }
    } 
    server {
        listen       127.0.0.2:8081 default;
        server_name  server4;
        location /test {
            return 200 'server4';
        }
    } 

    
 
    10. 

  10. run "nginx -s reload"
    11. 

  11. run "telnet 127.0.0.1 8080"
    12. 

  12. send request
    GET /test HTTP/1.1
Host: localhost
Connection: close
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36
Accept: */*
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-TW,zh;q=0.8,en-US;q=0.6,en;q=0.4 
    

    13. 

  13. get responseget response
    HTTP/1.1 200 OK
Server: nginx/1.4.3
Date: Mon, 21 Oct 2013 23:20:33 GMT
Content-Type: application/octet-stream
Content-Length: 7
Connection: close

server2
    

    14. 

  14. run "telnet 127.0.0.2 8081"
    15. 

  15. send request
    GET /test HTTP/1.1
Host: localhost
Connection: close
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36
Accept: */*
Accept-Encoding: gzip,deflate,sdch
Accept-Language: zh-TW,zh;q=0.8,en-US;q=0.6,en;q=0.4 
    

    16. 

  16. get responseget response
    HTTP/1.1 200 OK
Server: nginx/1.4.3
Date: Mon, 21 Oct 2013 23:21:52 GMT
Content-Type: application/octet-stream
Content-Length: 7
Connection: close

server4
    

    

    

    17. 



















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