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Cloud VPN

Cloud VPN. Abdullah Alshalan Garrett Drown Team 3. Outline. Project Goal Brief Project Background Current Network Layout Roadmap of our Project Development Summary Challenges Faced. Project Goal.

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Cloud VPN

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  1. Cloud VPN Abdullah Alshalan Garrett Drown Team 3 CSE591: Virtualization and Cloud Computing

  2. Outline • Project Goal • Brief Project Background • Current Network Layout • Roadmap of our Project • Development • Summary • Challenges Faced CSE591: Virtualization and Cloud Computing

  3. Project Goal Provide users of Android devices with several reliable options for accessing a cloud via a VPN connection. CSE591: Virtualization and Cloud Computing

  4. Technical Background • There are several different protocols users may wish to use. • PPTP • With encryption • Without encryption • L2TP • Plain • IPSec PSK • IPSec CRT • SSL CSE591: Virtualization and Cloud Computing

  5. SSL Secure Socket Layer (SSL): • Encrypt everything above the Transport Layer. • Uses certificates for authentication • Always uses the strongest encryption that both the server and client support. CSE591: Virtualization and Cloud Computing

  6. Roadmap of Project By midterm: • Set up, document, and test all possible server and protocol combinations with the native Android client. (Completed) • Place a web server inside our VPN. (Completed) By final: • Have L2TP IPSec with Certificates working (Completed) • Set up an SSL VPN Server (with OpenVPN) (Completed) • Set up an SSL VPN client for Android (Completed) • Website/Program for Registration (Completed) • Documentation of how we did what we did (Completed) • If time permits: Set up the native client to automatically reconnect when the connection is lost. (80% Completed) CSE591: Virtualization and Cloud Computing

  7. Native Android Client • We have successfully set up the native Android VPN client to work with the following configurations: • Linux using L2TP • Linux using L2TP IPSec PSK • Linux using L2TP IPSec CRT • Windows using PPTP with no encryption • Windows using PPTP with encryption • Windows using L2TP • Windows using L2TP IPSec PSK CSE591: Virtualization and Cloud Computing

  8. Native Android Client • For each of the configurations we have documented the steps we took to set up the VPN Servers and the VPN clients on the Android device. • This allows others to easily reproduce and expand on our work. • This documentation now includes screenshots to assist future users with the set up process. CSE591: Virtualization and Cloud Computing

  9. OpenVPN Server • The native Windows VPN Server does not support SSL VPN connections. • To support SSL, we installed the OpenVPN Server on the Windows server. • The OpenVPN also provides the means for creating the certificates used by the clients. CSE591: Virtualization and Cloud Computing

  10. OpenVPN Client • The native Android VPN client also does not support SSL VPN connections. • To provide SSL VPN functionality, we installed the OpenVPN client on to the Android and configured it to work with the OpenVPN Server. • Our documentation was updated to include how to set up the OpenVPN Server on the Windows server and the OpenVPN client on the Android. CSE591: Virtualization and Cloud Computing

  11. Network Layout & Infrastructure We also installed a web-based SSL VPN (Adito) on a Windows server. However, it did not work with Android because the client agent needs a Java Run-time machine which Android lacks. CSE591: Virtualization and Cloud Computing

  12. MobiCloud VPN • There are a few shortcomings of the native Android VPN client. • Because of this, we have developed a new interface for configuring and managing new, existing, and/or active VPN connections. • It provides: • Easier access for creating VPN connections • Easier management of VPN connections • Automatic reconnect functionality • Provides users with an easy method for registering CSE591: Virtualization and Cloud Computing

  13. MobiCloud VPN • The registration window allows users to conveniently register with the VPN Server. • Immediately after registering users are able to access the VPN using the information they provided. CSE591: Virtualization and Cloud Computing

  14. Challenges Faced • Setting up Linux VPN Servers • Limited Documentation • Personal solutions provided online • Compatibility issues • Setting up the OpenVPN server and client • Very little documentation • Documentation became outdated for each major update to the Android operating system. • Little documentation for (safely) rooting the phone and gaining access to the Droid file system. CSE591: Virtualization and Cloud Computing

  15. Challenges Faced • Developing the new Android interface • The VPN APIs are not made publicly available or documented. • Required us to go through source code and use unofficial Android Java classes • No documentation provided • No comments in the code • Had to read through all of the code and understand what it is doing and how it is doing it CSE591: Virtualization and Cloud Computing

  16. Demo CSE591: Virtualization and Cloud Computing

  17. Questions? CSE591: Virtualization and Cloud Computing

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