GB-OS FIREWALL SOFTWARE
                            VERSION 3.6.3
                            RELEASE NOTES

Author:     Global Technology Associates, Inc.
Product:    GNAT Box System Software version 3.6.3
Date:       4 January 2006

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GNAT Box System Software version 3.6.3 includes updated versions of the
following GTA products and utilities:

    GB-OS                        3.6.3
    GBAdmin                      3.6.2

Release notes are located on the installation CD and on GTA's web site.

For more about upgrading related software, see individual product
release notes.

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CONTENTS
Release Notes sections are categorized first by feature addressed, then
by the type of change.

1.  INSTALL NOTES

2.  SERVICES

3.  SYSTEM

4.  RELEASE NOTES HISTORY

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1.  INSTALL NOTES

    1.1 Firewall Rebooting After Uploading a Configuration

        When uploading a complete firewall configuration, updating an
        H2A slave, or when performing Save All/Save Copy As in GBAdmin,
        the firewall will now reboot to apply the new configuration.
        GBSS3620002676, GBSS3620002669, GBSS3620002673

    1.2 Entering New Mail Sentinel Subscription Activation Codes

        Mail Sentinel Anti-Spam and Mail Sentinel Anti-Virus users
        must enter new activation codes for the new version.

    1.3 Upgrading Hard Drive GB-Ware Installations from 3.5.x to 3.6.2

        When upgrading a hard drive GB-Ware firewall from version 3.5.x 
        to 3.6.2:

            1.  Back up the firewall configuration.
            2.  Reinstall the firewall software completely from the CD.
            3.  Restore the configuration.

        The GB-Ware CD image (ISO-9660) is available for download from 
        GTA's Online Support Center 
        (https://www.gta.com/support/center/login/). Failure to reinstall
        from CD may cause hard drive geometry errors that prevent the 
        upgrade.

    1.4 SSL Certificate Replacement

        Version 3.6.3 will install a new default security/SSL
        certificate. Some browsers, including Netscape and Mozilla,
        will not recognize the new certificate if the original has
        never been replaced. If you are unable to log on to the
        firewall after upgrading, delete the browser's cached security
        certificate, then close and restart your browser before
        reattempting remote access to your firewall.
        
        
2.  SERVICES

    2.1 Bug Fixes

        2.1.1   Mail Sentinel now uses all updated rules.
                GBSS3720003065

        2.1.2   Memory leak in Mail Sentinel Anti-Spam resolved.
                GBSS3720003079         


3.  SYSTEM

    3.1 Bug Fixes

        3.1.1   Hardened IKE daemon to address potential denial of
                service (DoS) vulnerablity (Cert VU#226364)
                GBSS3720003148 


4. RELEASE NOTES HISTORY

    4.1     Previous Release Notes
            These notes cover the 3.6.3 release of GB-OS.
            Release notes for previous versions can be found at
            GTA's web site, www.gta.com.

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Global Technology Associates, Inc.
3525 Lake Lynda Drive, Suite 109
Orlando, Florida 32817
www.gta.com
407.380.0220