Questions tagged [networking]

Generic network issues. Before using this tag, check if there's a closer fit (see tag wiki).

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What would be a proper way to set dnscrypt-proxy on my phone to use DoH(Dns over https) to cloudflare servers

I'm using a Mediatek phone(stock rom) running Android 5.1.1 with root privillege(using Magisk). I downloaded the latest version of dnscrypt proxy for arm devices which came in a zip extension and can ...
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2answers
2k views

Cannot ping Android devices on same wifi network

I have a Nexus 7 running CyanogenMod 10.1. For some reason I cannot reach it from my laptop on the same wifi network. I cannot ping in either direction. In the past i have been only able to ping one ...
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2answers
2k views

How to kill dhcpcd?

The following command works perfectly to start DHCP: # dhcpcd -p eth0 DHCP cannot be stopped once it is started. The following command does not work: # dhcpcd -k eth0 It returns the following: ...
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1answer
3k views

Android Connected to Multiple WiFi

I recently got a new smart tv and a samsung s6. I have an ambitious project I would like to pursue. I want to do some screen mirroring, this works fine but with my wifi being fairly slow any real ...
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VLC android not able to detect local network share

I want to stream media files stored in my PC on my Android device. I had started a DLNA server on windows 7 laptop with help of both in-built feature and a software called SimpleDLNA server, both of ...
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2answers
6k views

Need to enable ICMP Ping response from phone

I'm trying to enable ICMP ping response from my Android 4.2.2 Phone (Galaxy S4). I am only considering ping over LAN via Wi-Fi, not the cellular network. WLAN Network connectivity is not the problem: ...
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14 views

“Connected, no internet” for my phone only, network otherwise working

I have a local WiFi (composed, if it helps, of a main router and another wifi accesspoint with the same SSID, but the problem persists even when turning it off), all devices connected to it seem to ...
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1answer
702 views

Wifi status 'Connected, no internet'. Can access all internet resources I've tested

Related question I've put a new router into the office to run our 'guest' wireless network. It's a FRITZ!box 3490. Android devices connected via both 2.4 and 5G are showing as 'connected, no ...
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4answers
60k views

How to set up a host to IP mapping on unrooted Android?

I've a website running on my computer, and I want to test it from my Nexus 7 tablet. I.e. over the local WiFi LAN. If I type in the IP address it connects, but shows the wrong web site, because I'm ...
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1answer
3k views

How can I forward a port when using PdaNet?

I'm using PdaNet to connect my laptop to the Internet. From there I'm using an ethernet cable and Internet conection sharing to connect my PS3 for online gaming. Works pretty good for most games, but ...
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What Iptables rule should I apply for accessing/surfing the web only

I've recently managed to gain root privilege on a Mediatek Android smart phone. I'm willing to use this phone for websurfing only. I was wondering what Iptables rule should be applied to only allow ...
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What are some good security practices to take on a newly rooted Android phone and improvise further

I've managed to root my Mediatek Android smartphone using Magisck. I've managed to set up Afwall+ for now and was wondering how to further harden this device. If you have a smartphone with root ...
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Speed from mobile hotspot is not consistence and poor speed

I am WFH and using Xiaomi note 8 pro for hotspot to my work computer and I have D-Link dongle which catch the hotspot signal. I am using Airtel sim card for that. When I start working to my system at ...
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1answer
50 views

What is causing unknown network traffic on an Android phone?

I have a Xiaomi Redmi Note 8 Pro smartphone with Android 10 installed. Even when all apps are closed using the task manager, I see some realtime network traffic. It's not that much but it goes on all ...
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Cannot access network from non-root users in terminal (Permission denied) [duplicate]

Preamble My problem is, to run specific commands (i.e., start specific processes, possibly at background) on boot. I've installed Termux, so I want to start some of its commands at boot time, such as ...
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4answers
21k views

How to Power On and Shutdown a Remote host with Android?

The title can't be more specific. I'd like you to suggest the best way to send the poweroff instruction, to windows or Linux.
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1answer
79 views

Toast message: Failed to init Google DNS, switch to host IP method

Recently, after unlocking my phone screen (Samsung J7 Pro - J730, stock ROM, Android 7 Nougat), I usually receive a toast notification saying: "Failed to init Google DNS, switch to host IP method&...
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2answers
1k views

How can I block incoming connections?

I've been looking for a firewall app for Android for a couple hours now and all I could find is apps that only let me block outgoing connections (for specific apps). Is there any way to set which ...
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0answers
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What is the easiest way to send push notifications from my GNU/Linux machine?

Not sure if this is the right network to ask this, but I want to have a simple way of sending a push notification to my android phone from a simple command on my linux box. Both devices are on the ...
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27 views

Using VPN to proxy all data to a remote ssh gateway

I have a ssh Client connectbot which I can use to connect to a ssh server and then use the remote server as a gateway . I have socks proxy setup at the locally on android .I can configure Mozilla to ...
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2answers
6k views

Network Selection disabled by WiFi Manager & Wi-Fi keeps disconnecting

Android 7.1.2 drops WiFi connection. Wi-Fi verbose log says: (network_selection_permamently_disabled) network_selection_disabled_by_wifi_manager
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0answers
24 views

How to connect a usb tethered device to a device that is connected by hotspot both using a single phone?

I have a pc with no wifi card and a laptop. I want to use the laptop as a second monitor using spacedesk software but it needs the two device to be connected on the same network. the only resources I ...
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2answers
10k views

3g network connection Problem while using data

For last two months or so, the situation in my two years old international HTC One X is that the data is not connecting when it is on 3g network but it is working absolutely fine with 2g network. when ...
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0answers
283 views

Connect Android device to Wifi for internet and ethernet simultaneously

I have a Samsung tablet where I want to use wifi for internet connection and ethernet to communicate to other network devices connected to it such as Field Bus Coupler etc simultaneously. Right now ...
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0answers
14 views

Unable to ping LAN from my android phone when the devices are on a JioFi(mobile hotspot) network

I am rather having a strange issue ... I have 2 mobile hotspot devices ... Huawei(unlocked) and Jiofi(locked to Jio network in India) Huawei Network Details Gateway(router IP) : 192.168.8.1 Subnet : ...
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1answer
965 views

UDP multicast with reverse tethering

We are using a Wi-Fi network to communicate with other devices running our applications. And, we are using UDP multicasting. However, due to some new restrictions we are no longer allowed to use wifi....
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1answer
933 views

I can't configure my tablet's usb to ethernet ip setting manually

I have lenovo A3300-GV tablet which have usb ethernet support. I use micro usb to ethernet adapter and it work fine with my router. where my internet provided by local cable operator ISP Siti ...
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2answers
1k views

Connected to wifi, but no internet access

first question here. I was using wifi normally on my phone. Then I turned it off and after some time turned it back again. Since then I can not access the internet. It's showing Connected(no internet ...
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1answer
2k views

Can we make a Vpn server run on Android?

Can we make a Vpn server run on Android. Can applications do this? If yes, which protocols are supported and is this a good idea to use such apps? If not, what are some issues that we may face?
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2answers
4k views

Android apps not working with HTTP proxy

So I want to redirect my Android phone's HTTP traffic through a proxy running on my computer, in my case Burp Suite. I tried doing so by changing the WiFi settings and also by using the Drony app. ...
3
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1answer
842 views

android 4.1.1 network connectivity issues

device: asus memo pad mev172v issue: Apps (facebook, play store, ym, skype, etc) cannot access the wifi network. I can browse using Chrome (except for SSL sites) and can use the Youtube app. tried: ...
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1answer
841 views

How to use network interface as non-root user?

I want to communicate between my Android device and my Linux box over IP through the USB network interface mode. The device I'm using is a OnePlus One running CM12.1 nightly builds. It's rooted and ...
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0answers
12 views

High ping in emulator

I want to play mlbb on pc android emulator since it does not run on android x86. I have 70~90 ping on my network. But i am getting more than 150 in emulator. I tried switching netork mode and used ...
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0answers
27 views

Can anyone tell me what this means?

I have a spy wear app and it's showing these have accessed my net but I dunno how to figure out what they are..the ones in the pic with ?marks by them when opened thats what it read on the other pics
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1answer
24 views

Emulator 'redir' command unavailable… (?)

I am trying to configure my emulator to connect to my WiFi as per these instructions, however, I find that the "redir" command is not available. My emulator is for API version 29, and its ...
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1answer
2k views

How do I bridge Android guest network traffic?

I need a way to direct all traffic from an ARM Android guest to a virtual bridge on the host. I'm using the Android emulator binaries (built from source) and Android images built from the AOSP ...
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0answers
25 views

Periodic slow wifi pings on android despite strong signal

I have an android phone connected to my home wireless. Every other device in the house works ok with the network. Checking ping in Android adb shows some weird results: Android:/ $ ping 1.1.1.1 PING 1....
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0answers
16 views

Android device screen turning off results in chroot network errors: “ping: sendmsg: Operation not permitted”

I am running Arch Linux ARM in an Android chroot environment. When I first created the environment my user account user was able to access the network and create sockets, however the root account was ...
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0answers
26 views

Port Forwarding with PDAnet+

I am trying to start a minecraft server and I was going through the port forwarding process. I can't play on a LAN with the other person. I am using PDANet+ (FoxFi Key) on an Android (Galaxy S9 edge). ...
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0answers
36 views

How to blacklist some cell base station on Android 9

As far as I know, one of approaches for disabling of mobile data traffic during public protests is use a fake cell base station with strong signal at local area. I did some research, but I did not ...
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0answers
27 views

Trying and failing to use phone mobile data as proxy

I tried following this: https://android.stackexchange.com/a/196779/327770 I connected my android phone, a Samsung 8 with Roger's sim card to my computer Bridged with adb Port forwarded 6400 on my ...
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1answer
938 views

Connectivity issues with Windows 7 “hostednetwork” wifi hotstop

I have a 3g USB stick modem, connected to my Windows 7 laptop. I am sharing the internet connection using hostednetwork (Windows 7 facility to turn a laptop's wifi into an Access Point). Now... it ...
1
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1answer
38 views

LineageOS 16.0, can't get tethering to work, Samsung Galaxy J5 SM-J500FN

I use 'Free' French ISP. Tethering was working previously, I made no update. I have another device with LOS 16 that works well with tethering. After running dhclient usb0 from my Linux OS, I get my ...
3
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1answer
1k views

Why is one of my WiFi networks not visible after connecting to the other one?

I've got two access points / WiFi networks at my home and there is a strange behavior with my Android 4.0 phone (SGS2): after my phone connects to one network or the other (whichever is currently ...
4
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1answer
1k views

How to control additional tethering settings on android phones?

I want to use my phone and data plan as a temporary solution for providing Internet for my whole home network. I have plugged it into my OpenWRT router via USB and it's network device usb0 is so far ...
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0answers
854 views

How do I generate a PKCS12 CA certificate for use with Packet Capture?

I was trying to use Packet Capture app to find out some URLs used by an app. Packet Capture allows you to capture SSL packets by installing a VPN Gateway with its own root CA certificate and then ...
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1answer
1k views

Android on wifi - only local network, no internet

My phone (HTC One X) can't get internet when connected to my office wifi network. My office's wifi has no problem for me and my workers. By default, my phone uses DHCP mode when connected to local ...
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3answers
5k views

changing dns settings on android - not working

When i set my dns on my android device and go to dns leak test it's not the dns that I set in the dns settings. Its the dns set by my ISP. How can I get it to use the dns that I want? for reference:...
11
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2answers
15k views

Port-forwarding on Android 2.3.6 wifi-tether using Port Forwarder app

I'm having trouble port-forwarding connections from outside my network when tethering with my phone. I have a bad understanding of routers and networking in general, so please bear with me. My ...
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0answers
15 views

How do I manually input ranges on Fwd: port forwarder app?

I need to make rules for these: TCP: 27015-27030,27036-27037 UDP: 3074,3097,4380,27000-27031,27036 The app does not support ranges, but apparently you can do it manually. How do I do this help :) ...

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