About DoorStop X Firewall
Protects your Mac from undesired access from the Internet and logs both allowed and denied access attempts. DoorStop’s easy-to-use interface means less chance of mistakes, and its wide range of addressing and service options gives you fine-grained control over how services are protected.

DoorStop enhances the firewall built into Mac OS X and works with Mac OS X Server as well. Available standalone, or as part of the comprehensive DoorStop X Security Suite.

What’s New in this Version
- Mainly adds support for Leopard (Mac OS X 10.5). Also our new Internet security “Top 10” list. Leopard-specific features include:
- Leopard introduces a number of new and changed services. DoorStop X has been updated to include protection options for new services such as Screen Sharing (through two different methods) and Remote Management.
- DoorStop’s protection of iChat’s Screen Sharing service is particularly critical for anyone considering using that service.
- DoorStop’s Setup Assistant includes a number of Leopard-specific features, such as a “What’s New in Leopard” pane and detailed information and options on iChat Screen Sharing.
- Direct access to the most recent version of our book, with major new sections on Leopard features.
- Service names match those used in Leopard.
- General Leopard support and bug fixes.