Nginx Module Reference manual: HTTP access control module

These modules are all compiled into Nginx by default unless a module is manually specified to be excluded in configure.

This module provides a simple host-based http://www.aliyun.com/zixun/aggregation/38609.html "> access control."
Nginx_http_access_module This module can be accessed by checking client IP for access control.
Control rules are checked in the order they are declared, and the first matching IP access rule is enabled.
The following example:

The above example allows only 192.168.1.0/24 and 10.1.1.0/16 network segments to access this location field, but 192.168.1.1 is an exception.
Note the order of the rules, if you have used Apache you may think you can control the order of the rules and they can work properly, but in practice, the following example will reject all connections:

If you want to implement a number of complex rules, it is best to use GEOIP module modules.

Instructions

Allow

Syntax: Allow [address | CIDR | ALL]
Default value: No
Working with fields: HTTP, server, location, limit_except
Variables: None
directive specifies the IP or network segment that is allowed to access.

Deny

Syntax: Deny [address | CIDR | ALL]
Default value: No
Working with fields: HTTP, server, location, limit_except
Variables: None
directive specifies an IP or network segment that is denied access.

Tips and Tricks

The Httpaccess module can be used with the error_page instruction to redirect an unauthenticated access request.