4. Launch STN Express. Click the Logon button from the Main Menu /Toolbar.
5. Select the SSL-VPN setup in the Select Logon Settings window. Click OK to
log on using the SSL-VPN connection.
Note: If you have logged on to STN and the session manager window Sent and
Received packets remain at 0 bytes, you did not log on using the SSL-VPN setup
and your session is not being encrypted. Log off from STN and log on again using
your SSL-VPN setup.
SSL-VPN tips for optimal use
While RSA encryption can be used with an SSL-VPN session, it is
recommended that you choose one or the other as each accomplishes the
same thing - a secure and encrypted session. Using both together will cause
the data being sent back and forth from your PC to the STN host to be doubly
encrypted and could cause a degradation of service.
Within your browser, it is recommended that you check "Don't reuse the
browser window" to keep from accidentally overlaying the session manager
window and accidentally terminating the connection.
The SSL-VPN connection to STN relies for its connection on the secure
session manager running in the web browser window. This window is
labeled: "DO NOT CLOSE - Secure Application Manager". If this is the last
active web browser window used and you click on a link from another
application (including STN), you may get a dialog that asks: "Are you sure
you want to navigate away from this window?" If you respond Yes, your SSL-
VPN connection is disconnected along with your STN session. In your STN
window, you will see a message: "Connection closed by remote host".
If you click "End Session" within the secure application session manager
window, this will end your SSL-VPN and STN sessions.
If you are having problems getting the SSL-VPN session established, here are a few
reasons this could happen:
The HTTPS protocol may be blocked. Confirm that port 443/TCP is permitted
through your firewall and/or proxy server. (To test this, try going to an https
web-site to confirm it works, e.g., https://stnweb.cas.org)
You have a pop-up blocker enabled within your browser preventing the
session manager window from launching. In order for the SSL-VPN session
to connect, you can either turn off your pop-up blocker, or add *.cas.org
and/or *.fiz-karlsruhe.de as an allowed web site.
Microsoft Internet Explorer: Choose Tools I Pop-up Blocker I Pop-
up Blocker Settings and under "Address of web-sites to allow", add
*.cas.org and/or *.fiz-karlsruhe.de.