rubycas/rubycas-server — pull request #148 by adamcrown (2012-12-13 06:17:45+00:00)
Title: Add support for allowed_service_ips whitelist.

allowed_service_ips can be set in config.yml to limit service
validations to a certain set of IPs or IP ranges. This prevents
just any site from being able to grab potentially sensitive
personal information.