As installed, the Eagle software blocks the passage of all network services into and out of your network, with the exception of SMTP (electronic mail). Since e-mail is a universal service customers want, it passes transparently and you need do nothing to the Eagle to configure it. You can enable other network services to pass under the control of a powerful rules-based authorization file. Since most customers want to be able to use the common ftp and telnet services, the ability to permit the passage of these services and to control who can use them, both inside of and outside of your Eagle-secured network is a standard part of the software. Furthermore, you can choose to permit the passage of other network services, such as NNTP, NTP, etc., on a service-by-service basis, and limit the use of them on a user-by-user basis, with our flexible Generic Service Passer.