Apache::AuthCookieDBI is a module that subclasses Apache::AuthCookie and is designed to be directly used for authentication in a mod_perl server. It is a ticket-issuing system that looks up username/passwords in a DBI database using generic SQL and issues MD5-checksummed tickets valid for a configurable time period. Incoming requests with tickets are checksummed and expire-time checked. Version 2.0 and later require mod_perl 1.99 or later.