ajp_store_access
The `ajp_store_access` directive specifies which access rights are necessary for storing responses in the AJP connection context.
Description
The ajp_store_access directive is used in the AJP protocol proxy module for NGINX to manage the storage access permissions of responses from AJP backends. This directive takes between one and three arguments, which specify the conditions under which responses can be cached and stored. The permissions can be set to allow or deny access to different client types, such as authenticated users, based on specific user/group identifiers.
By correctly configuring ajp_store_access, administrators can optimize the caching mechanism of AJP responses, ensuring that sensitive or dynamic content is not unnecessarily stored, thereby improving both performance and security. The directive can be particularly useful in environments where certain content should only be served to authenticated users, while other content can be cached for better performance. All user and group identifiers used in this directive must first be defined in the NGINX configuration to be effective.
When defining access rights, using the correct syntax and understanding the order of precedence is important, as it determines the behaviors of stored content under different scenarios. This helps manage user access effectively while leveraging caching capabilities, which leads to reduced load on the backend servers and faster response times for end-users.
Config Example
location / {
ajp_pass tomcats;
ajp_store_access user group;
}Ensure that user and group identifiers used are defined prior to this directive.
Misconfiguration might lead to sensitive data being cached unintentionally.
Caching is not performed if access is blocked, potentially leading to performance issues.