How connect two emulator to lan network android? - android-layout

How connect two emulator to lan network android? I would like to send info from one emulator to second using wifi and socket

I use Android-x86. It works great in VirtualBox and it even has a tutorial.
Just set the VM's up on their own network or even bridge them to the host machine's network. Works like a champ!!!

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How to set a static IP for a HoloLens 2 without Wifi

I have a situation where I need to set a static IP address for a HoloLens 2 for a network that I am wired to through an Ethernet to USB-C dongle. The network is not using DHCP. The HoloLens 2 is provisioned to be an offline secure HoloLens (https://learn.microsoft.com/en-us/hololens/hololens-common-scenarios-offline-secure), so there is never the option of connecting to the target network wirelessly. I can only find options to set static IPs for the HoloLenses through the device portal if the network is available wirelessly. Even the Ethernet IP configuration settings are tied to specific network profiles and these profiles only show up for wireless networks.
Any help here would be greatly appreciated, thanks!
The USB-C Ethernet adapter settings are available in HoloLens OS Insider version currently. Please check out this reference: New Settings app
Network & Internet:
USB-C Ethernet adapters will now appear in Network & Internet.
USB-C Ethernet adapter settings are now available, including its IP address.
Start receiving Insider builds if you want to have a try.
Support for setting a static IP for an Ethernet connection is now supported in the New Settings app. This New Settings app is available in the Beta Channel of the Insider Preview program as well as the official release Windows Holographic version 21H1. If the needed release does not appear when checking for updates on the HoloLens 2, the latest release can be manually downloaded from https://aka.ms/hololens2download and installed with the Advanced Recovery Companion (ARC) tool.

how to connect flutter app with nodejs locally with real device

I want to connect my flutter app to node server locally through my real device.I have seen many solution but still didn't get any clear picture.can anyone elaborate the steps to connect
you have two ways to do that:
1- if your mobile and computer - which contain (node.ja and database) - connected at same wifi, so, you should just go to CMD in your computer and type (ipconfig) and try to find the ipv4 for (wireless) or wifi, after that just in your mobile you can access the api by just replace (localhost) or (127.0.0.1) with your local ip which your found in cmd.....
or if you don't using wifi, you can just run your mobile hotspot, and connect your laptop with it by wifi, and also follow same steps as above...
Device must be able to connect to localhost:<port> but to make this happen connect your mobile to computer via usb or connect over same wifi connection.
After this hit chrome://inspect/#devices and port forward localhost: to so now you can easily connect to localhost:<port> on your mobile phone.
Refer to image below and for more details check out the insightful medium blog by Neeraj Moudgil
https://medium.com/#neerajmoudgil/how-to-test-localhost-node-apis-on-android-device-253fcdd32c18

Can I use a Wifi adapter with MTP connection?

Actually, I'm using Flutter for my app development. But to run the app, I need to be connected to the internet (first-time). But when I use USB tethering, the MTP connection is cut to use the internet, and my PC doesnt have a wifi-card. So, will a WiFi reciever help me with this so that I could use Mobile hotspot and simultaneously use MTP for running the application purposes?

How to p2p_connect to device with WiFi Direct without MAC Address? (Raspberry Pi and Android)

I have an Android tablet and A Raspberry Pi and I want to established a connection between them automatically when the tablet sends a request to the Pi.
I followed an Android application example here and start discovering any nearby devices. (https://www.youtube.com/watch?v=qnY97iBxp30)
At the same time i run sudo wpa_cli and p2p_find 20. The Android application detects the Pi, and I try to establish connection with the Pi which will display
<3>P2P-GO-NEG-REQUEST TABLET_MAC_ADDRESS dev_passwd_id=4
Normally I would just p2p_connect TABLET_MAC_ADDRESS pbc to successfully connect them together but I find it inefficient if I were to swap to another mobile device.
Are there any other ways to connect the tablet without writing the tablet mac address? For example connecting to that specific device ssid when they send a P2P-GO-NEG-REQUEST to the pi?
TL;DR Nope.
If we look at the OSI ISO 7 layer model for network communication we can see that the Media Access Control (MAC) address is vital for identifying which device is which within a wifi network.
You could try setting up a bluetooth connection or a token-ring, but I suspect that would be more effort than you are looking for.
With IPv6 your devices could use neighbour discovery to automate past the MAC entry to the Internet Protocol, and its possible to connect between devices using their link-local address (fe80::some:thing)
Wifi carries packets of data, that have addresses. By analogy, if I tell you which town I live in, but don't write my building address on the packet, you are going to have a hard time delivering it.

Why volumio.local was able to access the raspberry since it connected to local network

After setting up volumio on raspberry, an interest feature was that you can use 'volumio.local' as the address to access the webpage hosted by raspberry, and there was not much to worry whether the ip address changed every time the raspberry connected to the local network. I was wondering how did volumio do that and how to setup an custom address for an raspberry to do the same.
It uses a system called Bonjour, which can locate devices and services on a local network using multicast Domain Name System (mDNS). See this Wikipedia article.

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