Chapter 16 SSL VPN for FortiOS 5.0 : Basic Configuration : Additional configuration options : Configuring client OS Check
  
Configuring client OS Check
The SSLVPN client OS Check feature can determine if clients are running the Windows 2000, Windows XP, Windows Vista or Windows 7 operating system. You can configure the OS Check to do any of the following:
allow the client access
allow the client access only if the operating system has been updated to a specified patch (service pack) version
deny the client access
The OS Check has no effect on clients running other operating systems.
To configure OS Check
OS Check is configurable only in the CLI.
config vpn ssl web portal
edit <portal_name>
set os-check enable
config os-check-list {windows-2000 | windows‑xp | windows‑vista | windows-7}
set action {allow | check-up-to-date | deny}
set latest-patch-level {disable | 0 - 255}
set tolerance {tolerance_num}
end
end
See Also
Routing in tunnel mode
Changing the port number for web portal connections
SSL offloading
Customizing the web portal login page
Host check
Windows OS check
Configuring cache cleaning
Configuring virtual desktop
Adding WINS and DNS services for clients
Setting the idle timeout setting
SSL VPN logs
Monitoring active SSL VPN sessions