System Requirements

• Mac OS X 10.3 or later

Concepts

If you are not familiar with networking operations, and concepts such as ports and IP addresses, you may find it useful to read the Key Concepts section of the DoorStop X Basics chapter. This is probably not necessary if you only plan to set up and use DoorStop X in its default configuration, however.

DoorStop and other firewalls

Before you install DoorStop X, you need to ensure that other firewalls on your machine will not interfere with DoorStop.

• OS X's built-in firewall - Go to the Sharing Preferences window, click "Firewall" and make sure the built-in firewall is not running. Or, if you're running OS X Server, use the Server Admin application to disable the built-in firewall.
• Third-party firewalls - If you have installed any third-party firewalls, turn them off and then uninstall them.

If you decide to go back to using another firewall, disable DoorStop by clicking the Stop button in DoorStop's Setup window, and then

• If you want to use OS X's built-in firewall, go to the Sharing Preferences window, click "Firewall" and enable the firewall.
• If you want to use a third-party firewall, reinstall it and enable it.

Note that DoorStop X does not have to be uninstalled in order to avoid interfering with other firewalls. Just disable DoorStop by clicking the Stop button in DoorStop's Setup window.

Installation

DoorStop X Firewall consists of the DoorStop X application and various documents. To install DoorStop, simply download the application from our Web site. When you download DoorStop, a DoorStop X folder is automatically installed on your hard drive, and the installer file is then moved to the trash. Drag the DoorStop X folder to OS X's Applications folder. Further installation issues are discussed in the Appendix.

Quick Start

After downloading, make sure that you're logged in as a user with administrative privileges, and then run the DoorStop X application. The first time you launch DoorStop you will be prompted for an administrative user name and password. The Setup Assistant will then guide you through setting up DoorStop. Once this is done, the Setup window appears. Figure 1 shows how the Setup window would look if you chose default values in the Setup Assistant, or if you skipped the Setup Assistant altogether. DoorStop is enabled, providing protection for your machine. To change the access to services, see Protecting Basic Services.

Note that the DoorStop application does not have to be running for service protection to be active, and that service protection will remain active, even if you restart your Mac, until disabled by running the DoorStop X application and clicking the Stop button.

You can also view passages from Open Door's security book Internet Security for Your Macintosh through DoorStop's Book menu, either on a section-by-section basis, or for a service you've selected.

Online Help

Online help is available in two ways:

• From the Mac Help item in the Finder's Help menu.
• As an item in DoorStop X's Help menu.

Either method will invoke online help for DoorStop X, which is structured much like this User's Guide.

Purchasing the DoorStop X Firewall

The DoorStop X Firewall demo is a fully functional copy that runs for 30 days from the time it is first launched. It can be downloaded for free from the Open Door Networks DoorStop X download site. To continue using DoorStop past the 30 day trial period, you must purchase a serial number and enter that serial number into the demo. You can purchase a serial number in one of two ways:

• Launch DoorStop X and either click the Purchase ... button in the startup dialog or use the Purchase menu item in the DoorStop X menu. Your Web browser will open the secure order page on Open Door's Web site.
• Use your Web browser to go to Open Door's DoorStop X order page.

Entering a serial number

Once you've purchased a serial number for DoorStop, you need to enter it into the demo. You can do this in one of two ways

• Launch DoorStop X, click the Enter Serial Number ... button in the startup dialog, enter the serial number and click OK.
• With DoorStop X already running, choose Register Serial number ... from the DoorStop X menu, enter the serial number and click OK.

Related products

DoorStop X is part of the DoorStop X Security Suite, a comprehensive set of three integrated products.

• DoorStop X Firewall (contains a limited version of Internet Security for Your Macintosh)
• Who's There? Firewall Advisor (contains a limited version of Internet Security for Your Macintosh)
• Internet Security for Your Macintosh (full standalone version)

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