Nginx Module Reference manual: User ID module (user ID)

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

Module Ngx_http_userid_module A cookie for the connection, mainly using $uid_got and $uid_set variables, note: $uid _got and $uid_set cannot be obtained in SSI, Because the SSI filtering module works before the UserID module filters.
This module is equivalent to Apache's Mod_uid module.
Sample configuration:

Instructions

UserID

Syntax: userid [on|v1|log| | Off]
Default value: UserID off
Working with fields: HTTP, server, location
Whether to enable the issue of cookies or log to the requested cookie:

Userid_domain

Syntax: userid_domain [name | none]
Default value: Userid_domain None
Working with fields: HTTP, server, location
Specifies the domain name of the cookie, and the parameter "none" does not issue a cookie to any domain name.

Userid_expires

Syntax: userid_expires [TIME | max]
Default value: None
Working with fields: HTTP, server, location
Sets the expiration time for cookies.
Parameter setting and emitting the browser's effect time on the cookie, the value "max" specifies the expiration date: December 31, 2037 23:55:55 GMT, which is the maximum time that some old browsers can recognize.

Userid_name

Syntax: userid_name name
Default value: Userid_name UID
Working with fields: HTTP, server, location
Sets the name of the cookie.

userid_p3p

Syntax: USERID_P3P line
Default value: None
Working with fields: HTTP, server, location
Specifies a value for the P3P header passed along with the cookie.

Userid_path

Syntax: Userid_path path
Default value: Userid_path/
Working with fields: HTTP, server, location
Sets the cookie path.

Userid_service

Syntax: Userid_service number
Default value: Userid_service address
Working with fields: HTTP, server, location
Set the server address for the cookie publication, if not set, the cookie for version one sets it to 0, and version two sets it to server IP.