Questions tagged [android]

Operating system for mobile devices. For user questions, see http://android.stackexchange.com

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13 views

Running android image directly on a VPS

I have a VPS server which uses KVM . I can run android using a emulator but I want to run androidx86 directly on the VPS and not through emulation. Is thi possible ?
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Ports used by LTE/3G on Android

I just discovered that a 3G/LTE connection on my phone, circumvents my iptables rules which I have for some apps, for example: sh -c 'iptables -I OUTPUT -m owner --uid-owner 10090 -p tcp --dport 80 -...
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10 views

Pingable device not detected by Nmap

I've used Nmap for quite a while and work with it on a regular basis as a network admin. Today I noticed something rather odd while scripting Android Development Bridge Functions, I'm able to ping and ...
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37 views

Self-signed certificate added to trust store is trusted by Chrome on Windows but is not trusted by Chrome on Android

I'm testing push notifications with service workers in a local network. I created a self-signed certificate like this: openssl genrsa -out server.key 1024 openssl req -new -key server.key -out server....
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1answer
45 views

Android appears to bypass firewall rule which restricts request for port 53

I'm trying to configure my Fios G1100 to force DNS request to my internal DNS server 192.168.1.131. This device runs Pi-hole, which is configured to make DNS request to 1.1.1.3 and 1.0.0.3. This has ...
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18 views

Issue with Transparent NAT PRoxy

I've researched all the related issues on Linux NAT proxies but they haven't helped me resolve my issue. It looks to me like I'm doing things right but it's just not working. What I'm trying to do ...
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1answer
48 views

Apache - BrowserMatch and SSLVerifyClient

We are trying to achieve "SSLVerifyClient none" config only for Android users, is it possible on a given virtualhost ? <VirtualHost *:443> ... SSLVerifyClient optional BrowserMatch Android ...
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43 views

Mount cgroup v1 instead of v2

Some context: I'm trying to get docker containers running under Linux Deploy under Android TV on an Odroid N2 arm64 SBC (kernel 4.9.113). I've got the kernel setup with the necessary bits for docker, ...
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20 views

Control Jenkins Slave + Fastlane from a Jenkins master

I'm trying to make a pipeline / piece of infrastructure where I have these things: fastlane setup on a mac server jenkins slave on said mac server jenkins master in amazon infrastructure github ...
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262 views

Failing to connect to Softether VPN with OpenVPN for Android while Softether VPN client can connect successfully

I've recently setup VPN server for my self using Amazon Lightsail using SoftEther. The system I'm using is Centos 7. I'm not using firewalld, but I'm using iptables instead. Everything was running ...
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1answer
32 views

Demo infrastructure faisability [closed]

I would like to ask if it's possible to use an Android Phone as Hotspot and with the VPN enabled ? My aim is to connect by WIFI a printer and in the other hand to have connectivity to an Azure VPN ...
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Details on JSON settings in Admin Google

I want to use the "JSON config" option in Admin Google. But I can not find any details on this. Some Chrome extensions also support it and I was able to use it. Some Android apps also support it (...
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1answer
2k views

Chrome desktop and android refuses to accept trusted self-signed cert

I created a self-signed certificate using the following command using OpenSSL 1.1.1b (26 Feb 2019): openssl req -nodes -new --days 900 -subj /CN=192.168.0.104:8080 -x509 -keyout server.key -out ...
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1answer
185 views

OpenVPN traffic incorrectly routed outside tunnel when accessing server IP

My setup consists of a client and a server where the client is connected to the server using OpenVPN. It's configured to route all traffic through the tunnel. This works well, the ip is the server ip ...
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18 views

Helping on wso2 iot server

I install and configure WSO2 IoT Server 3.3.0. everything is OK and i enrolled 3 android device in device management section. However after installing android agent on mobile device and after ...
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193 views

fail to Deploy the service to the Google App Engine flexible environment from maven

this is basically from the tutorial that follows google doc "Build an Android App Using Firebase and the App Engine Flexible Environment" the link is at: https://cloud.google.com/solutions/mobile/...
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1answer
334 views

What hardware specs is needed to serve 100,000 clients on OpenVpn? [duplicate]

Serving vpn clients (tcp connections) with OpenVpn server relies on what ? Or how can we calculate the clients count with hardware specs ? Does it rely on server bandwidth speed, like if we have a ...
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1answer
313 views

DNS over TLS / DoT as a private Service (authentication) possible?

I have set up an DNS resolver and nginx upstream server as a working "DNS over TLS" server. (and DNS over HTTPS but android uses TLS) This works great so far, but my wish is to make it private with ...
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76 views

Set up direct ethernet connection Linux<-->Android

I have an Android 6.0 SoC (ODroid C2) that I'm trying to connect directly to an embedded Linux machine via either regular ethernet or ethernet over USB (via the g_ether module) There are 2 services ...
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8 views

CertPathValidatorException for Android App users after moving server to different IP

Existing users of the Android app get the following error: java.security.cert.CertPathValidatorException This happend after using an existing certificate on a new server, this server is also hosted ...
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24 views

MobileIron Bulk Delete?

I recently inherited MobileIron and am trying to clean up the inventory. There are retired devices that are over 3 years old. I have the option to bulk retire but I can not find a way to bulk delete ...
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109 views

PHP cURL on AWS starts returning error 0 after long uptime

We're using Ubuntu 16.04 on AWS (4.4.0-1066-aws x86_64) to send pushes to Android and iOS clients from PHP application using curl. This is the bit of code used to send a push to Firebase: $ch[$i] = ...
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746 views

how to redirect android traffic to proxy

I know that Android does not support automatic detection pac files, and I also know that port 443 can not be redirected. So, This is what I have: For example, asssuming the squid-cache proxy port is ...
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898 views

Cannot connect to websocket

When I tried to connect to spring boot web socket from android stomp client, it is not connecting and the catalina log shows Handshake failed due to invalid Upgrade header: null Tomcat server is ...
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1answer
1k views

How to setup auto-configure email for Android Mail app on your server?

I work for a local ISP, Web and Email Hosting provider. I've been able to setup autoconfig/autodiscover and .mobileconfig for Thunderbird, Outlook, and IOS, respectively. This covers most of our ...
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257 views

SSH to a non default port times out over Android hotspot connection

I'm trying to connect to a remote Ubuntu machine using ssh protocol. My local OS is Ubuntu 16.04 and the remote OS is 18.04. My local machine is connected to my Android 5 over shared hotspot ...
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2k views

How to access NAS shares with Android file explorer over VPN

I've got a Qnap TS-251+ NAS with a static LAN IP (192.168.0.10 via router DHCP reservation, outside of DHCP range). I created a shared folder (Stuff) and a user (John) with RW permissions. Then I ...
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1answer
1k views

Communication error with Jack server (77) causing Jenkins build to fail

I am creating a CI build for compiling our custom Android ROM / OS and I am receiving an odd error in Jenkins when trying to do an automated build. The issue doesn't take place when I build manually ...
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1answer
133 views

PHP Script is showing error [closed]

I am trying to write web services for data exchange between php-mysql server and android device. But service is showing some errors and not working. Here is the my code <?php include '...
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1answer
603 views

How to configure Exchange 2013 shared mailbox with activesync?

I want to add both personal and shared mailboxes Exchange 2013 to Android devices using ActiveSync protocol, not IMAP. Is it possibile? How can I use the personal use to authenticate the shared ...
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1answer
466 views

Android OpenVPN disconnects the SSH tunnel

I want to tunnel my OpenVPN traffic through an SSH tunnel. I have An OpenVPN server behind a router running on port 4321 SSH server on the same machine on port 22 Router forwards ports to the server'...
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3answers
1k views

Private and authenticated DNS

I tried searching online but I was just flooded with bunch of irrelevant results, the thing I'm looking to achieve is basically a password-protected dynamic DNS server. For example, let's say I own ...
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1answer
951 views

Client Authentication Certificate error on Android after installing SSL certificate

I've recently installed an SSL certificate for my website fantasyfeeder.com. This appears to be installed correctly when I use the online checker at ssllabs.com (https://www.ssllabs.com/ssltest/...
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434 views

User's Exchange 2010 emails disappearing

I've encountered a very strange user issue with regards to Microsoft Exchange Server 2010. Emails seem to be vanishing, it could be one or many at a time. It's very infrequent and has only been ...
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2answers
671 views

Is there a way to find what processes are in nice CPU top list? [closed]

I have a top output that shows a high amount in nic CPU percentage. Is there a way to see what those processes are? And is it possible to do it from top?
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25 views

Redirecting the outbound connection of an ip to an ip

Im using an app. Now, i want the outbound connection of that app will redirect to to another ip so that it doesn't go back to that app. How will i do it using iptables? How will i know the ip of that ...
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574 views

Android L2TP client and Windows RRAS 2012R2

L2TP VPN server Windows RRAS 2012R2 confirmed working with a Windows Client and also an Ipad. Confirmed locally remotely. The Android client cannot connect. The event logs on the Windows RRAS VPN ...
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1answer
46 views

How to make Wi-Fi Clients happy on Airgapped network?

We have an airgapped network composed of an Ubuntu 16.04 server and a Pepwave Peplink AP Pro 300M Wireless Access point. The goal is to allow consumer users to hit this access point but, when they ...
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1answer
111 views

Access point on telematics unit: Android devices cannot connect

I'm using a number of Sitec S4 telematics units to collect sensor data in road vehicles for a scientific purpose. A yocto-based Linux distribution is installed on them. In order to administer it ...
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1answer
219 views

Access VM Console through Smart Phone

Hey guys I need some little help. I have a KVM and used oVirt for the management of VMs. What I want is that my client will log on to their account and access their virtual machine using their Smart ...
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1answer
4k views

Configuring Wi-Fi on Android via Intune. Missing Wi-Fi certificate issue

I am having an issue when Android phones are unable to get correct WiFi configuration policy from Intune. Intune is in 'cloud mode' (non-hybrid) I have the following polices configured in Intune: ...
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0answers
493 views

Hyper-V Visual Studio Emulator for Android keeps overriding Virtual Switches

I am using Visual Studio Emulator for Android to deploy Android Emulators on a Hyper-V host server. These emulators need to have internet access. Host server OS is Windows server 2016. I have 3 ...
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1answer
356 views

Domain Admin's Android refusing to activesync with Exchange 2013

I have tried for weeks to get my Galaxy S5 to connect to my exchange 2013 server. It appears that the exchange accepts the credentials, as there are no errors displayed, but no messages are ever sync'...
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0answers
109 views

iPhone/ Android will not dismiss wifi landing page implemented with DNS [closed]

I am trying to implement a splash page/ wifi landing page on my existing public wifi network, using the DNS method mentioned in Wiki, in which I host a custom DNS server, that will redirect ALL dns ...
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0answers
851 views

Android not detecting captive portal on access point

I have an access point hosting a login page (which doesn't have actual internet access) and I'm using dnsmasq to answer all DNS requests with the IP address of this page. If an android device connects,...
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1answer
131 views

Thunderbird can send emails over own mailserver, K-9 not

I switched to K-9 and APG recently to send and recieve emails and be able to en- and decrypt emails on the go. I've setup my own email server quite a while ago and everything works fine in Thunderbird,...
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1answer
262 views

Managing Google accounts in an MDM scenario

I am in the process of implementing an MDM solution in preparation for rolling out a large number of Android devices. We use a number of apps that are installed from the Google Play store and not side-...
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6answers
9k views

How to detect whether a user is using USB tethering?

Recently a user unplugged their company PC from the network and used USB tethering with their Android phone to bypass the company network entirely and access the internet. I don't think I need to ...
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1answer
788 views

DNS doesn't work over WLAN on Android devices when there's over 3 APs

My problem is that if I add over 3 access points to my WLAN network DNS stops working on Android devices. All other operating systems are working (Windows 7, Windows 10, iPhones). I've looked on ...
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2answers
3k views

Putting Android on ethernet network using VLAN s

In our lab, we have static IPs assigned to everything. We have less than 20 devices, some physical and some virtual on ESXi, ranging from servers to android tablets. Everything is wired ethernet. ...