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C H A R I T É - U N I V E R S I T Ä T S M E D I Z I N B E R L I NEine gemeinsame Einrichtung der Freien Universität Berlin und der Humboldt-Universität zu Berlin
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Geschäftsbereich IT Auch
als deutsche
Version vor-
handen
OpenVPN using Windows (10, 8, 7)
The Charité VPN service is based on the OpenVPN that is available for a multitude of operating systems. The following instruc-
tions take you through the installation and start-up phase of the software system using Windows 10. Older versions of Win-
dows (i.e. Vista or XP) are no longer supported.
Downloading the Programme and InstallationAfter your VPN request has been processed, you will
receive a confirmation mail with various links to
software and documentation. Users without a Char-ité email account will first have to set a password
in the password front end (https://zugang.charite.de).
Only then can you use the VPN service.
You can not install OpenVPN by yourself on Charité’s centrally administered PCs. Call the IT
Helpdesk and request assignment of the OpenVPN
software.
At first download the OpenVPN software onto your
computer.
Use your favorite web browser (Internet Explorer,
Firefox or Chrome) to open the OpenVPN page
https://openvpn.net. From the drop down menu Com-
munity choose the link Downloads, fig 1. On the
download page you will find the most recent version
(current in Nov. 2019: OpenVPN 2.4.8). Select
and download the Windows7/8 installer or the Win-
dow10 installer – depending on your Windows ver-
sion in use, fig. 2. Click Ausführen (Run) to confirm
to continue. The installation follows directly after
downloading.
Fig. 1 OpenVPN Homepage
Fig. 2 Load OpenVPN software
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You will first receive a warning from the
Benutzerkontensteuerung (User Account Con-
trol) that is to be answered with Ja (Yes),
fig.3.
Setup Wizard is activated and will lead you through the installation steps, fig. 4. Another warning for the installation of the
device driver will pop up which you have to confirm by clicking Installieren (Install), fig. 5. Attention: by default Installieren
(Install) is not selected.
To complete the installation you have to
install the configuration file, which also
includes your personal certificate, for the
Charité connection. You received the file in
a separate email from the VPN staff. Store
the attachment on the desktop. Use the
Explorer to move the file from the desktop
into a folder already created by OpenVPN.
The path to the folder is
C:\Programme\OpenVPN\config.
Once you have dragged the file to the config
folder it should correspond to fig. 6.
OpenVPN using Windows (10, 8, 7) – Page 2/4
Geschäftsbereich IT
Fig. 3 User account control warning
Fig. 5 Warning for TAP device driver installation
Fig. 4 OpenVPN Install Wizard
Fig. 6 OpenVPN config folder
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Setting Up OpenVPN / Working with the Charité NetworkThe OpenVPN GUI can be started using the Windows start menu or the link on the desk-
top which was created during the installation process. In contrast to earlier versions you
don’t have to explicitely start OpenVPN by Programm als Administrator ausführen (Run as
administrator). This is now default.
The resulting programme start is quite unspectacular; simply an icon showing a grey
screen with a lock appears in the taskbar, fig. 7. Attention: sometimes the icon is hid-
den behind a collection symbol, the triangle.
To connect to the Charité net right click on the icon in the taskbar and then on Verbin-
den (Connect) in the drop down menu, fig. 8. Should the item be absent in the drop down menu, the configuration file is not found in the config folder – as shown in fig. 6.
The Aktueller Status (Current State) window opens and displays the con-
nection steps. This is the most important information for the VPN advisors
(vpn@charite.de) in case of problems. In addition, the Benutzer Authenti-
fizierung (User Authentication) window opens where you enter your user
name (as received per email) and password (Charité mail passwort resp. as
defined in the password portal), fig. 9. During the login process the VPN
icon in the taskbar is yellow; if your login is accepted an information pop-
up shortly appears and the color of the icon changes to green, fig. 10.
The Aktueller Status (Current State) window can be directly opened to check
the successful connection, or in the case of an error, copied and sent as an
email to the VPN advisors. To do this, right click on the OpenVPN icon in
the taskbar and then click on Log Information in the drop-down menu.
After establishing the connection you
should check all settings done correct.
http://vpntest.charite.de provides a one-stop
web service to check if the VPN connec-
tion is working properly. Three green dots
indicate a fully operational VPN, fig. 11.
In case of errors you’ll bei given hints on
what might be wrong and how to fix it.
Users without a Charité email account will in general get a red dot on test #3 due
to their missing authorization for using
Charité proxy.
OpenVPN using Windows (10, 8, 7) – Page 3/4
Geschäftsbereich IT
Fig. 7 OpenVPN GUI icon in task-bar or hidden
Fig. 8 Connecting OpenVPN
Fig. 10 Connection process and Connected message
Fig. 9 OpenVPN user name and password
Fig. 11 Website https://vpntest.charite.de
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Using the Charité proxy while connected via OpenVPNPlease remember you have to use the Charité Proxy to access internet
web pages –as long as there is an OpenVPN connection. Current Win-
dows versions will search for a proxy by default, so test #3, fig. 11,
will be successful.
Important hint: The browser is retrieving the autmatic proxyconfiguration on startup only. This means that you need to restart the browser after connecting or disconnecting from the VPN!
If the option automatic proxy connection is not yet configured, pro-
ceed as follows:
Open Einstellungen (Settings) from the Windows menu, fig. 12. In the
Einstellungen window click the category Netzwerk und Internet (Net-
work & Internet)and choose Proxy there, fig. 13. With Proxy automa-
tisch erkennen (Automatic proxy setup) the switch should be activated,
fig. 14.
If you use Mozilla Firefox, the corresponding option is »Die Proxy-
Einstellungen für dieses Netzwerk automatisch erkennen« and can
be found in the Extras menu under Einstellungen ➙ Erweitert ➙ Net-
zwerk ➙ Verbindung
OpenVPN using Windows (10, 8, 7) – Page 4/4
Geschäftsbereich IT
Fig. 12 Windows Settings
Fig. 13 Network & Internet
Fig. 14 Automatic proxy setup
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