GB-OS FIREWALL SOFTWARE
                            VERSION 5.1.5
                            RELEASE NOTES

Author:     Global Technology Associates, Inc.
Product:    GB-OS version 5.1.5
Date:       17 August 2009

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GB-OS version 5.1.5 includes updated versions of the following GTA
products and utilities:

    GB-OS                       5.1.5

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.  SYSTEM

3.  NETWORK

4.  SERVICES

5.  ACTIVITY

6.  OPERATING SYSTEM

7.  RELEASE NOTES HISTORY

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1.  INSTALL NOTES

    1.1 Entering New Activation Codes
    
        If upgrading from 5.0.x or below, new activation codes must be
        entered. GB-OS version 5.1.5 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 5.1.5. If the error messages persist, clear your
              browser's cache.
            
        1.2.2 Re-sizing Slices and Runtime Upgrades for GB-250
              
              GB-250 firewalls may require partition re-sizing during the 
              upgrade process to GB-OS 5.1.5. Upon re-sizing, both runtime 
              slices will have GB-OS 5.1.5, and firewall administrators WILL NOT
              be able to revert to previous runtimes via the Console or Web 
              interface.
              
              GTA strongly recommends backing up current firewall 
              configurations PRIOR to upgrading.

              Firewalls requiring re-sized partitions will take approximately 
              5-8 minutes to reboot and fully update once the runtime has 
              been applied. DO NOT switch off or reboot the firewall during 
              this process.
            

    1.3 SSL Certificate Replacement

        GB-OS version 5.1.5 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.
    
    
    1.4 Mail Sentinel Anti-Virus 
    
        Since the release of GB-OS version 5.1.2, Mail Sentinel Anti-Virus is 
        no longer available as a separate subscription option. Mail Sentinel 
        Anti-Virus is included as a standard feature with vaild support 
        contracts.


2.  SYSTEM

    2.1 Modifications
        
        2.1.1   Updated DNS server.
                GBOS5150012711
                
    2.2 Bug Fixes
    
        2.2.1   Exchange server tunnels with SYN cookies enabled no longer 
                result in slow or dropped connections.
                GBOS5150012056
                
        2.2.2   Address object limits are properly enforced for 10 User GB-Ware.
                GBOS5150011081
    
3.  NETWORK

    3.1 Bug Fixes
                
        3.1.1   Saving of address objects and DNS no longer results in memory 
                leak for the DNS proxy.
                GBOS5150011696    
               
4.  SERVICES
             
    4.1 Bug Fixes   
        
        4.1.1   OSPF properly functions when set for a single IP network.
                GBOS5150012491
                
        4.1.2   XML configuration data, sent from the Firewall Control Center, 
                is properly validated.
                GBOS5150011621 
                
        4.1.3   SNMP correctly returns interface bytes sent and received.
                GBOS5150012501

5.  ACTIVITY

    5.1 Modifications
    
        5.1.1   Improved configuration reports for RIP.
                GBOS5150011856
                
        5.1.2   Firewall no longer logs preservation of activation codes when 
                resetting test mode configuration. 
                GBOS5150011001
    
    5.2 Bug Fixes
    
        5.2.1   Firewall properly reports and displays connection statistics.
                GBOS5150011266

6.  OPERATING SYSTEM
        
    6.1 Bug Fixes
    
        6.1.1   Built-in groups are properly sorted in the group list.
                GBOS52150011906


7.  RELEASE NOTES HISTORY

    7.1   Previous Release Notes
          These notes cover the 5.1.5 release of GB-OS. Release notes for 
          previous versions can be found at GTA's Web site, http://www.gta.com.

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