I have created a VPN Profile on my Android device. Now, I would like to create an Android application to manage (restrict and allow) which applications can access this VPN Profile.
So far, I've looked at Android's VPN Service which allows us to manage which applications can access the VPN Service but I am unable to correlate how this solution fits in with an already created VPN Profile.
There is no relation betweeen the VpnService API and VPN connections you create in Android's built-in VPN client. When using the VpnService API you'll have to implement a VPN protocol yourself and tunnel data read from the TUN device, which is created via the API, and back again (or use a library that implements a VPN protocol that does this for you), only then can you restrict apps from using the VPN using VpnService.Builder's addDisallowedApplication() method.
You can also look for VPN apps in the app store that already use this API and support excluding (or including) apps that may use the VPN.
you can find many free vpn or proxy servers. I use nord vpn and his efficiency I check on whats my ip service. You can also use it. Its free. VPN is important where you need to get access to blocked sites or social media like twitter or Facebook. During my trip to China I used vpn and whats my ip service.
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I'm trying to implement Android device administration on a range of company-owned devices. The network these devices will be on does not have an internet connection - It will only have Wi-Fi connection to the enterprise network.
I have the device working with a policy controller, all hard-coded into the app loaded via Android Studio.
My next step is creating an Enterprise Mobility Management (EMM) console, but the documentation seems to explain that it's cloud-based and require Google accounts. Is there a way to implement this functionality on an offline secure network without Google accounts?
Yes, there is a way to implement device management functionality on an offline network.
Headwind MDM, the project I am working on, is a self hosted mobile device management solution which can manage Android devices without Internet connection (using Wi-Fi or private APN in mobile networks). Also, it is open source so you can adjust the code for your needs.
The only exception is that you may need Internet connection during the initial setup of your Android devices, because some models require access to Google Play Protect when installing the device owner application.
I'm trying to connect to a VPN, in order to have permissions to some web services that I request using HttpURLConnection. I need to enter the server and the credentials to the VPN, but I have no clue how to do that. I'm concerned that exists the vpnService but I didn't find how to use it and mainly how to pass credentials to it. Can you guys help me?
I want to establish the connection to a VPN from my university and, once did it, make the connections pass through it. I did it manually at the phone and It worked. Now I want to do it at the code so people that uses my app don't need to do that.
Edit: I just want to connect to a vpn programatically, instead of doing it through the vpn settings at android's settings menu.
I am developing a application for mobile (iPhone and Android) maps based for a company. The company has deployed a wireless network to allow, by subscribing, internet access.
The idea of the mobile app is to give internet access only to that specific app to any ones that have it. In other words, company wants to allow to application to connect to this network.
My question is: is it possible to give access only to a specific application and what would be the most appropriate way? Is the app that "recognize" that network or network is in charge of give access to that specific app?
Any suggestion is very appreciated.
If you want to provide only app to connect to any network then you need to put some rules in IPTABLES in linux core (this needs your application to have root access) just like the firewall applications for android that monitors UIDs of applications accessing network
But you can do it the other way, implement some server calls that the particular network of the company will only be accessed through that particular app, Use some validation in http requests such as maintain a unique ID to differentiate your app/user that you can create during registration and during interacting with the network use the key for validation.
Generally speaking, a regular WiFi network won't have any facilities to allow a single application to access it. The mobile device OS associates itself with the WiFi network, and it will allow all applications to access it.
You could, however, use a proxy server that requires authentication. You could then build the authentication keys (for example, a client certificate) into the application such that only the application will be able to communicate through the proxy.
I am developing the application in which I want to use VPN network. to create VPN network in device we need to configure it from (settings-wireless and network-VPN settings) menu of device.
I want to do this many settings via code with hard-coded information.
From API level 4.0 android provides API to handle the VPN services.
To know the implementation of this methods I used the Sample project of Android ToyVPN. But in this many methods I didn't find any method to pass username and password. information which I have to connect VPN network is.
VPN Server name
Username
Password
Using this three information I am successfully connecting to VPN network if I am configuring manually from device. But I want to do this programmatically. Here is the class file which is used to connect to VPN network. ToyVpnClient.java and ToyVpnService.java. in addition to this sample application is crashes in device.
Any help will be appreciated.
The VpnService you are talking about is not what you think. It's just a framework for you to create your own VPN solution. Once established, you'll get all communication on the network (IP) layer and you can do anything you want with it, e.g., encrypt it and send it to your server - the example for this is the ToyVpn project found in /samples/android-14/ directory. You also need a your own server side code to do the decryption and the necessary routing of the traffic.
Unfortunately you can't set the built-in android VPN programmatically. The best you can do is to show a dialog to the user explaining how to set it and then pop up the system settings with the correct screen showing.
It is possible using internal android.jar(com.android.internal) and hidden(#hide) API. Refer the below link:
How to programmatically create a new VPN interface with Android 4.0?
Could you please give some guidance where to dig?
What I have:
I have a device (HTC One X) with ICS (Android 4.x) on board.
My Company has a corporate VPN server based on Microsoft VPN Services (RRAS and so on).
Microsoft VPN Server has a policy applied to it which tells it to accept only connections with MSCHAPV2 authentication.
What I need:
I need to make VPN connection from my device to my corporate VPN Server.
Questions:
Is it possible to get my need with ICS's onboard VPN client?
Is there any 3rd party VPN client which does it?
How to ask Google about my need?
Android supports MS-CHAP V2, but that is part of phase 2 authentication and is configured automatically during handshake. The question that needs to be answered first is what VPN protocol is being used?
PPTP? Check if you need to enable encryption (MPPE)
L2TP/IPSec? It's possible all of them are supported; you may also have to check whether it's PSK or RSA.
If it's RSA, you need to install the certificate for connecting.
SSTP? SSTP is only available on Windows.
You should also be aware that MSCHAPV2 on PPTP is considered broken (cryptographically unsafe). And SSTP is not supported on Android. I'm assuming SSTP is an option and OpenVPN isn't because the company is using MS VPN.
To answer your questions:
1. If the server enabled PPTP or (L2TP/)IPSec, Android 2.x+ should be able to connect, as long as the vendor didn't strip out the built-in VPN in stock Android.
2. Any 3rd party VPN client should support these two widely used protocols.
3. Google's android repository on Google Code should be consulted if there are issues with the VPN client: https://code.google.com/p/android/issues/advsearch
I don't have much idea about VPN in Android, but there are a couple of solutions you can try:
Install StrongSwan VPN client - https://play.google.com/store/apps/details?id=org.strongswan.android&hl=en_GB - but dunno if it would work or if it requires a server software. Best guess is to try it.
Install a custom ROM (CyanogenMod/AOKP/Pacman/Paranoid/etc) and then try. Usually, custom ROMs include such functionality that isn't present in the (crappy) stock ROMs.
Good luck :P