GB-OS FIREWALL SOFTWARE
                            VERSION 5.0.6
                            RELEASE NOTES

Author:     Global Technology Associates, Inc.
Product:    GB-OS version 5.0.6
Date:       12 August 2008

-------------------------------------------------------------------------
GB-OS version 5.0.6 includes updated versions of the following GTA
products and utilities:

    GB-OS                       5.0.6

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.

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

1.  INSTALL NOTES

2.  SYSTEM

3.  SERVICES

4.  THREAT MANAGEMENT

5.  OPERATING SYSTEM

6.  RELEASE NOTES HISTORY

-------------------------------------------------------------------------

1.  INSTALL NOTES

    1.1 Entering New Activation Codes
    
        If upgrading from 4.0.5 or below, new activation codes must be
        entered. GB-OS version 5.0.6 is available at no charge to
        customers with a GTA support contract or annual maintenance
        agreement. Other users should contact their local GTA channel
        partner or email sales@gta.com for information and pricing of
        upgrade options.
        
    1.2 Upgrade Notes   
        
      1.2.1 Error Messages Upon Initial Reboot
    
            Upon rebooting after successful installation, the GTA
            Firewall UTM Appliance may display errors when accessed
            using the Web interface.  This is expected, these errors are
            generated because the browser's cache is trying to access
            files and locations that no longer apply. Click OK to any
            displayed errors and refresh the browser window to access
            GB-OS 5.0.6. If the error messages persist, clear your
            browser's cache.
            
      1.2.2 Surf Sentinel Upgrade Notice
      
            GB-OS 5.0.6 and above includes enhancements to Surf Sentinel 
            category listings. The Surf Sentinel categories will be modified 
            when your GTA firewall is updated to GB-OS 5.0.6. Existing Surf 
            Sentinel categories will be automatically mapped to the enhanced 
            categories included in GB-OS 5.0.6. Please review the Surf Sentinel 
            Feature Guide for details on the category mapping.
            
            GTA strongly recommends reviewing the settings for all (new and 
            automatically mapped) categories and making any necessary revisions 
            to your Surf Sentinel settings and policies to ensure they meet your
            corporate Internet Access Policy.

    1.3 SSL Certificate Replacement

        GB-OS version 5.0.6 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.  SYSTEM

    2.1 Modifications
    
        2.1.1   Added static routes for Gateway Failover beacons with DHCP.
                GBOS5060006771
                
        2.1.2   Updated bind to 9.4.2-P2.
                GBOS5060007126
    
    2.2 Bug Fixes
    
        2.2.1   System remains operational when using NAT-T and VPN accelerator 
                cards are installed.
                GBOS5060006281
                
        2.2.2   Certificates are now properly exported when using the PKCS #12 
                format.
                GBOS5060006701
                
        2.2.3   IPS properly logs all dropped connections.
                GBOS5060007086
                
        2.2.4   Upgrading from version 3.7.3 to later versions now correctly 
                initializes source port policies.
                GBOS5060006841
                
        2.2.5   Remote Administration section properly saves when using the 
                console interface.
                GBOS5060006671
                
        2.2.6   Upgrade configuration properly imports.
                GBOS5060006221
                
        2.2.7   If configuration copy fails, runtime update is aborted and 
                slices are unchanged.
                GBOS5060007156
                        
                
3.  SERVICES
    
    3.1 Bug Fixes
                   
        3.1.1   NTP is properly restarted after HA state changes.
                GBOS5060006966
        
        3.1.2   VLAN packets are no longer denied as pass through blocks when 
                in HA mode.
                GBOS5060006346

        3.1.3   DNS proxy properly reinitializes after HA state changes.
                GBOS5060006971
                
                
4.  THREAT MANAGEMENT

    4.1 Enhancements
    
        4.1.1   Improved Surf Sentinel categories.
                GBOS5060006221
    
    4.2 Modifications
    
        4.2.1   Updated Mail Sentinel log messages.
                GBOS5060006231
                
        4.2.2   Removed copy and paste function from Mail Sentinel policies.
                GBOS5060006541
    
    4.3 Bug Fixes
        
        4.3.1   Mail Sentinel Anti-Spam and Anti-Virus license no longer 
                displays as invalid when downloading the installation filesm.
                GBOS5060006356
                
        4.3.2   Surf Sentinel configuration is properly upgraded.
                GBOS5060006881


5.  OPERATING SYSTEM
    
    5.1 Modifications
    
        5.1.1   Traditional proxy properly displays as GB-OS Proxy.
                GBOS5060006561
                
        5.1.2   Improved configuration report.
                GBOS5060006746

        5.1.3   Improved display of service port data.
                GBOS5060006776
                
    5.2 Bug Fixes

        5.2.1   Section display is now correct when importing a 3.7.3 
                configuration with NTP. 
                GBOS5060006276
                
        5.2.2   Display of the install prompt screen is now correct when 
                updating activation codes.
                GBOS5060006271
                
        5.2.3   Scheduler remains operational.
                GBOS5060006311

 
6.  RELEASE NOTES HISTORY

    6.1     Previous Release Notes
            These notes cover the 5.0.6 release of GB-OS. Release notes 
            for previous versions can be found at GTA's Web site, 
            http://www.gta.com.

-------------------------------------------------------------------------
Global Technology Associates, Inc.
3505 Lake Lynda Drive, Suite 109
Orlando, Florida 32817
www.gta.com
407.380.0220