Apache Module mod_unique_id
Description: Provides an environment variable with a unique identifier for each request
Status: Extension
Module Identifier: unique_id_module
Source File: mod_unique_id.c
Status: Extension
Module Identifier: unique_id_module
Source File: mod_unique_id.c
Summary
This module provides a magic token for each request which is guaranteed to be unique across “all” requests under very specific conditions. The unique identifier is even unique across multiple machines in a properly configured cluster of machines. The environment variable UNIQUE_ID is set to the identifier for each request.
Reference: http://httpd.apache.org/docs/2.2/mod/mod_unique_id.html
