administrator can just push these changes out to the users. This simplifies Desktop SOE migrations. SGD's password-caching feature, authentication tokens, and ability to integrate with Active Directory and LDAP gives it the ability to easily set up single sign-on to applications: a user logs into SGD once, and then can run applications without having to perform an additional login—even if there are usernames and passwords used for the different back-end applications. With the same SGD infrastructure one can host an organisation's internal desktop applications, but also be able to access desktop applications remotely without the need for expensive VPN solutions. The Firewall Traversal Feature makes it possible to put an application server in an organisation's DMZ with only port 443 (HTTPS) accessible from the outside world. An SGD server can be accessed via HTTP or HTTPS. SGD also integrates with the Sun Java System Portal Server making it possible to deliver desktop applications via a Secure Portal using a Portlet, including the ability to mail, calendar and other Portal features. Sun Java System Identity Manager can also manage all user accounts and passwords via one webform, including integration of LDAP, Active Directory, Oracle or other commercial or home-grown access control repositories. Features Since version 4.5, SGD provides SGD Gateway. This allows clients to access the infrastructure in a different physical network. The SGD Gateway splits the traffic. SGD integration into the GNOME Launch Menu and Windows clients' Start Menu; clients can connect to an SGD server when they log into their client automatically, without the need to open up a browser. Desktop icons can be created to start applications via SGD without the user being aware of SGD's presence. Significantly improved bandwidth utilization and screen rendering, making it considerably faster than the previous version. The screen rendering engine has been rewritten from scratch to be made more bandwidth aware and efficient and also to increase rendering performance of the desktop applications. Sun reports 30% faster screen rendering and 80% improvement of bandwidth efficiency. LDAP and Active Directory supported as login authority sources, multiple LDAP/ADs can be configured Windows support Support for Client Drive Mapping and Local Printer Mapping Support for serial port forwarding Oracle Secure Global Desktop Software runs on Solaris 10 (SPARC and x86), Solaris 9 and 8 (SPARC only), Red Hat Enterprise Linux 5 (x86 32-bit). Oracle Enterprise Linux. The November 2007 release of version 4.4 introduced a