From the KnowledgeBase
University account holders using University resources should be aware that their activity, including that via VPN using Secure Remote Access (SRA), must comply with U.S., New Jersey and local laws and University Information Technology Policy, regardless of their access point.
There are two alternatives for connecting to University computing resources from off-campus.
Princeton Library access from off-campus
Many licensed databases and other electronic resources of the Princeton Library are only available while on campus or connected to the Princeton network. The Library provides a web interface that allows you to log in to library services even if you are off-campus. Use of this service is restricted to members of the University community. Go to Library EZproxy Service to connect. In case of questions or problems send email to Library Support at firstname.lastname@example.org.
All other Princeton resources from off-campus
Secure Remote Access (SRA) is a service for Princeton faculty, staff, and students who are off-campus and need to access restricted campus resources through a Virtual Private Network (VPN). After authenticating, remote computers function as if they were on campus, and as long as your SRA connection is active, all Internet activity from your computer is routed through Princeton servers and your computer is giving a Princeton IP address.
Starting on Thursday, May 19, 2016, the Secure Remote Access (SRA) VPN service will require Duo Two-Factor authentication. After you enter your Princeton credentials you will not be presented with usual Duo authentication information on your computer as when using Webmail or CAS applications in a web browser. The SRA credential window will only connect after you complete the two-factor authentication. The SRA window will display a “Time out” message if you do nothing. For more information about Princeton Duo Security, go to www.princeton.edu/duo.
On January 7, 2016, the Cisco/Microsoft unsecured version of VPN previously supported will be discontinued at Princeton. As of January 8, 2016 you will need to be using the Secure Remote Access (SRA) protocol to create a VPN connection to campus.
How to configure a Secure Remote Access (SRA) connectionFaculty/Staff/Graduate Students!
If you use Windows, there is an easy alternate option to configure your Outlook program to use Outlook Anywhere for Exchange email and calendaring.