C&CZ manages a VPN (Virtual Private Network) server, which makes it possible for all users to gain secure access to the network with their Science username and password .
The computer at home (or anywhere on the Internet) becomes part of the campus network. In this way users can get access to services that are normally only accessible from computers on campus. The most common of such services are connecting to disk shares or to special servers.
For the use of the University library one does not need VPN, because the library has a proxy website UB Off-Campus, that can be used from anywhere on the Internet after logging in with your Radboud Login.
Science VPN service
You can test your VPN-connection by visiting this (great) website:
This page displays your ip address. If your Science VPN is active, your ip address should start with
The hostname will resemble
vpnXXXXXX.science.ru.nl (where XXX corresponds to the IP address).
Windows 10 instructions
Add a new VPN with server
vpnsec.science.ru.nl, that’s all.
From Windows Settings, go to “Networks and Internet” > “VPN” > “+ Add a VPN connection” Fill in and save the settings as displayed here:
These are the same settings:
|VPN provider||Windows (built-in)||default choice|
|Connection name||Science VPN||choose something|
|Server name or address||
||provide as stated|
|VPN type||Automatic||default choice|
|Type of sign-in info||User name and password||default choice|
|User name||Science account||optional|
Save the settings.
To start the VPN connection, click the network or wifi icon next to the clock, click the “Science VPN” label and click “Connect” as shown in this picture:
Finally, you’ll be asked for your Science login and password:
Stop the VPN connection with the disconnect button:
macOS 13 instructions
Use the following steps to configure a VPNsec connection on your macOS 13 system:
Download the file vpnsec-ios.mobileconfig (Save Link As…).
vpnsec-ios-file in Finder and import the settings.
Open “System Settings”
Open “Network”, after which you get the dialog shown in the picture below:
Click on the button with the three dots
..., and go to “Add VPN Configuration” -> “IKEv2…”:
Fill in the following fields:
Field Value Server address
Authentication Type Username Username your-science-loginname Password your password
Ubuntu 20.04 & 22.04 instructions
Start with installing the necessary packages:
$ sudo apt install strongswan-nm network-manager-strongswan \ libstrongswan-standard-plugins strongswan-libcharon \ libstrongswan-extra-plugins strongswan-charon libcharon-extra-plugins
Reboot your system after installing these packages!
Via “Settings” -> “Network”, you can then add
a VPN connection by clicking on the
Fill in the fields as shown here:
Basically, fill in the following fields:
|Options||[v] Request an inner IP address|
|[v] Enforce UDP encapsulation|
Apply and then you can switch on the VPN through the NetworkManager applet in the toolbar:
iPhone & iPad instructions
For iOS, you should be able to follow the macOS instructions .
Install the strongSwan app . Use “IKEv2 EAP (username/password).
NB: some special characters in the password should be escaped using a
Pretty much the same as the general Ubuntu instructions , “Server” may be called “Gateway”, you don’t need to specify a key or certificate.
To make an actual VPN connection, go to the system tray and select “VPN” from the network icon and click connect.