Ningx 1.20.2

1、 download

Stable version , Download the corresponding linux Version or windows edition . Download address

2、windows Installation in environment

1. decompression ： Directly decompress the downloaded compressed package , Cannot unzip in a folder containing a Chinese path , Otherwise it won't start .
2. start-up ： Direct double click nginx.exe Or on the command line nginx.exe You can start
3. test ： Browser access http://localhost:80, The following page appears, and the startup is successful .
   
4. Common commands

nginx -s stop        Fast closing Nginx, Information may not be saved , And quickly terminate web service .
nginx -s quit        Close smoothly Nginx, Keep relevant information , There's an end to the arrangement web service .
nginx -s reload      Because of the change Nginx Related configuration , Need to reload configuration and reload .
nginx -s reopen      Reopen the log file .
nginx -c filename    by  Nginx  Specify a profile , Instead of the default .
nginx -t             Not running , Just test the configuration file .nginx  The syntax of the configuration file will be checked for correctness , And try to open the file referenced in the configuration file .
nginx -v             Show  nginx  Version of .
nginx -V             Show  nginx  Version of , Compiler version and configuration parameters .

3、 Load balancing

upstream mysvr { 
    server 192.168.10.121:3333;
    server 192.168.10.122:3333;
}
server {
    ....
    location  ~*^.+$ {         
        proxy_pass  http://mysvr;  # Request turn mysvr  List of defined servers          
    }
}

1. Hot standby ： If you have 2 Servers , When a server crashes , To enable the second server to provide services .

upstream mysvr { 
    server 127.0.0.1:7878; 
    server 192.168.10.121:3333 backup;  # Hot standby      
}

2. polling ：nginx The default is that the polling weights are all defaulted to 1, The order in which the server processes requests ：ABABABABAB…

upstream mysvr { 
    server 127.0.0.1:7878;
    server 192.168.10.121:3333;       
}

3. Weighted polling ： Different number of requests are distributed to different servers according to the configured weight . If not set , The default is 1. The request order of the following servers is ：ABBABBABBABBABB…

upstream mysvr { 
    server 127.0.0.1:7878 weight=1;
    server 192.168.10.121:3333 weight=2;
}

4. ip_hash:nginx Will make the same client ip Request the same server .

upstream mysvr { 
    server 127.0.0.1:7878; 
    server 192.168.10.121:3333;
    ip_hash;
}

About nginx Several state parameters of load balancing configuration ：

• down, Represents the current server Do not participate in load balancing temporarily .
• backup, Reserved backup machine . When everything else is not backup When the machine breaks down or is busy , Only request backup machine , So this machine has the least pressure .
• max_fails, Number of requests allowed to fail , The default is 1. When the maximum number of times is exceeded , return proxy_next_upstream Module definition error .
• fail_timeout, After going through max_fails After failure , Time out of service .max_fails You can talk to fail_timeout Use it together .

upstream mysvr { 
    server 127.0.0.1:7878 weight=2 max_fails=2 fail_timeout=2;
    server 192.168.10.121:3333 weight=1 max_fails=2 fail_timeout=1;    
}

4、linux Installation and deployment under the system （ To be added ...）