OPEN DOOR NETWORKS SHIPS THE DOORSTOP PERSONAL FIREWALL

ASHLAND, OR. -- November 15, 1999 -- Open Door Networks Inc., the developer of Mac OS 9's Internet File Sharing, today announced that it had begun shipping its DoorStop Firewall, Personal Edition. DoorStop Personal is an easy to use, end-user version of Open Door's powerful server firewall software, specifically focused on protecting Mac OS 9's new Internet services. Open Door also announced upgrades to its Security Suites for Macintosh servers and a white paper on Mac OS 9 Internet security, rounding out its Mac OS security offerings.

DoorStop Personal Edition, which runs on Macs back to Mac OS 8.1, is an important security enhancement for any Mac that is connected to the Internet for long periods of time, for instance through a cable or DSL modem or an intranet. Although the Mac OS is one of the most secure, today's increasingly popular permanent connections, in combination with Mac OS 9's new Internet features, significantly increase the Mac's exposure and warrant additional protection beyond that provided by the OS itself.

DoorStop was originally developed by Open Door for use on servers such as AppleShare IP and Open Door's ShareWay IP Professional. DoorStop Personal Edition is a greatly simplified version of the server product, and makes protecting Mac OS TCP/IP services as simple as clicking on the services' icons. DoorStop Personal Edition requires a PowerPC Mac and Mac OS 8.1 or later. Its features include:

• Built-in support for Internet file sharing (through Mac OS 9's file sharing and ShareWay IP)
  
• Built-in support for Mac OS 9's Program Linking over TCP/IP
  
• An advanced mode for protecting any TCP/IP service
  
• Logging of allowed and/or denied TCP/IP connections.
  
• Online help
  

Details on DoorStop, including a free evaluation release of DoorStop Personal Edition, are available from http://www.opendoor.com/doorstop/ . DoorStop Personal Edition pricing ranges from $59 ($49 educational) for single licenses, up through $1299 ($999 educational) for 50 user licenses. DoorStop Personal can also be purchased with ShareWay IP 3.0 Personal Edition for $99 ($89 educational) or with a ShareWay IP 3.0 upgrade for $79 ($69 educational). Additional volume and site licenses are also available.

The DoorStop firewall is a major component of Open Door's overall security offerings. In addition to its previous announcement of ShareWay IP 3.0, a major security upgrade for Internet file sharing, (see "Open Door Networks Enhances Mac OS 9 with New Products" ), Open Door's security offerings now include:

• Today's newly announced upgrades to its Security for AppleShare IP and Security Suite for WebSTAR. The free upgrades provide Mac OS 9 compatibility in addition to addressing new security issues introduced by the latest releases of these servers (AppleShare IP 6.3 and WebSTAR 4.0). Details on the Suites are available at http://www.opendoor.com/asipsuite/ and http://www.opendoor.com/webstarsuite/ .
  

• A newly announced white paper detailing the ways in which security components, including DoorStop, ShareWay IP 3.0 and the Security Suites, work in concert with the Mac OS to make up a comprehensive Internet security solution. The white paper, "Understanding and Enhancing Mac OS Internet Security," is available from http://www.opendoor.com/doorstop/MacOSsecurity.html .
  

Open Door Networks, Inc. is the leading provider of tools that aid in the rapidly accelerating migration of Macintosh networks from AppleTalk to Internet protocols. Open Door was founded in January, 1995 by Alan Oppenheimer, an 11-year Apple veteran and co-creator of the AppleTalk network system. Open Door's mission is to provide Macintosh users with Internet solutions that are as easy-to-use and as powerful as the Macintosh itself. Open Door Networks is located in Ashland, Oregon.

ShareWay IP and DoorStop are trademarks of Open Door Networks, Inc.