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About Nginx commonly used official modules
- 不言Original
- 2018-07-13 16:08:171748browse
This article mainly introduces the commonly used official modules of Nginx, which has certain reference value. Now I share it with everyone. Friends in need can refer to it
Nginx commonly used official modules
Nginx采用模块化的架构，Nginx中大部分功能都是通过模块方式提供的，比如HTTP模块、Mail模块等。
Nginx official module documentation
1. ngx_http_stub_status_module
Compilation options
--with-http_stub_status_module
Function
Provide Nginx Currently processing access to basic status information such as connections
Syntax
Syntax: stub_status; Default: — Context: server, location
Usage
In nginx Configuration under server in the configuration file
server {
# 添加的配置
location /nginx_status {
stub_status;
}
...其它代码省略...
}
Reload the configuration file after modification
nginx -s reloadAccess
http://<ip>/nginx_statusin the browser, the following content will be returned
Active connections: 3 server accepts handled requests 7 7 16 Reading: 0 Writing: 1 Waiting: 2
Active connections: Nginx’s current number of active connectionsaccepts: The total number of client connections receivedhandled: The total number of client connections processed. Generally speaking, this parameter value is the same as accepts, unless some resource limit has been reached (such as worker_connections limit)requests: The total number of client requestsReading: The number of connections for which nginx is currently reading request headersWriting: The number of connections for which nginx is currently writing responsesReading: The number of idle clients currently waiting for requests Number of connections. It usually occurs when nginx turns on long connections (keep alive).
2. ngx_http_random_index_module
Compile options
--with-http_random_index_module
Function
Select a random number in the home directory File as homepage
Syntax
Syntax: random_index on | off; Default: random_index off; Context: location
Usage
Under server in nginx configuration file Configuration
server {
location / {
root /usr/share/nginx/html;
#添加这一行开启随机主页模块
random_index on;
#把指定的主页注释掉
#index index.html index.htm;
}
...其它代码省略...
}
3. ngx_http_sub_module
Compilation options
--with-ngx_http_sub_module
Function
Modify the response by replacing a specified string
Syntax
Specify the replaced characters and replacement characters
Syntax: sub_filter string replacement; Default: — Context: http, server, location
Last-Modified, use To verify whether the server content has changed, it is mainly used in caching scenarios
Syntax: sub_filter_last_modified on | off; Default: sub_filter_last_modified off; Context: http, server, location
By default, only the first string found is replaced. If all matching strings in the text are replaced, it is set to off
Syntax: sub_filter_once on | off; Default: sub_filter_once on; Context: http, server, location
In addition to "text/html", you can also replace strings with specified MIME types. The special value '*' matches any MIME type
Syntax: sub_filter_types mime-type ...; Default: sub_filter_types text/html; Context: http, server, location
Usage
Configure under server in the nginx configuration file
server {
location / {
root /usr/share/nginx/html;
index index.html;
# 将首页的nginx替换为home
sub_filter 'nginx' 'home';
# 不止替换第一个，而是替换response中所有的nginx
sub_filter_once off;
}
...其它代码省略...
}
Reload the configuration file after modification
nginx -s reloadcurl localhost, return the following content, you will find that all nginx in the response has been replaced by home
[vagrant/etc/nginx]$ curl localhost
<!DOCTYPE html>
<html>
<head>
<title>Welcome to home!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to home!</h1>
<p>If you see this page, the home web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://home.org/">home.org</a>.<br/>
Commercial support is available at
<a href="http://home.com/">home.com</a>.</p>
<p><em>Thank you for using home.</em></p>
</body>
</html>
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