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Questions tagged [zeroconf]

Zero configuration networking (zeroconf) is a set of techniques that automatically creates a usable Internet Protocol (IP) network without manual operator intervention or special configuration servers.

18 votes
3 answers
14k views

Avahi Hostname Resolution: Is it caching somewhere?

I am using Fedora 18 with the avahi command line tools (version 0.6.31) I use avahi-resolve-host-name to discover the IP address of units on my subnet, for testing purposes during development. I ...
0 votes
0 answers
22 views

zeroconf with asyncio.TaskGroup

I am creating an app using python zeroconf, asyncio.TaskGroup and aoimqtt. I get the following error: Exception caught: Task <Task pending name='Task-102' coro=<ServiceInfo.async_request() ...
1 vote
0 answers
57 views

React Native Zeroconf issue with resolving IP address on iOS 17+

I'm facing this issue where the MDNS cannot resolve the IP address when finding the service on a network, this is happening with iOS devices 17+, while with iOS 15 it works ok. I don't have iOS 16 to ...
4 votes
0 answers
158 views

.local. in python-zeroconf type

I'm trying to use python-zeroconf to find a local service. I know it is there - if I use the mDNS discovery app, the service is found almost instantly. However, while using the python-zeroconf example,...
0 votes
0 answers
102 views

Lookup name from IPv4 address in python zeroconf

I am scanning my local network, and trying to resolve IP addresses to hostnames where possible. For those on the DNS server, that is easy, just reverse lookup / PTR record. For those hosts not on DNS, ...
35 votes
4 answers
17k views

How to route all subdomains to a single host using mDNS?

I have a development webserver hosting as "myhost.local" which is found using Bonjour/mDNS. The server is running avahi-daemon. The webserver also wants to handle any subdomains of itself. Eg "cat....
0 votes
1 answer
2k views

Windows 11 not resolving .local addresses using mDNS

I am broadcasting a new mqtt-service via mDNS. My Flutter app is notified that a new service was registered but I am problems with the name-resolution of the address called MyMqttService.mqtt.local ...
4 votes
5 answers
2k views

How do I find out my multicast (Bonjour) hostname?

I've registered a record using the Bonjour API. Now I want to know the contents of the record I just published. I created it by specifying a NULL hostname, meaning, "use the daemon's default", but I ...
0 votes
0 answers
310 views

How to use python zeroconf in an asyncio application?

Here's a minimal reproducible example demonstrating the problem: import asyncio from zeroconf import Zeroconf, ServiceStateChange from zeroconf.asyncio import AsyncServiceBrowser def ...
0 votes
0 answers
92 views

Share data between 2 apps without internet using React Native

I want to share data between apps offline. It is a few kb of JSON data. I tried using react-native-bonjour to transfer data. But In the library, I don`t see methods to send the data. I see only the ...
8 votes
2 answers
4k views

Zeroconf Name resolution

I am developing a control device with an embedded webserver. The webserver provides a control interface to any web browser that requests it (from Windows browsers, Mac browsers, iPhone android etc). ...
0 votes
1 answer
375 views

Why does running avahi-browse within a docker container returns (NULL) network interfaces?

I'm attempting mDNS discovery from within a Docker container and running it using sudo docker run --privileged -v /var/run/dbus:/var/run/dbus -v /var/run/avahi-daemon/socket:/var/run/avahi-daemon/...
3 votes
2 answers
2k views

Google Chrome's "secure context" on a LAN?

Chromium doesn't allow a website to access a user's camera unless the page is hosted in a "secure context". Usually that means a web server that has a valid TLS (HTTP) certificate, but there's also an ...
5 votes
1 answer
3k views

Network Service Discovery (mDNS) on react-native/Expo

I have an IOT device ruining a mDNS responder, is there a way to find the device through a react-native/Expo app? I have found a react-native library (react-native-zeroconf). However, it requires ...
18 votes
5 answers
13k views

Simplest way to publish over Zeroconf/Bonjour?

I've got some apps I would like to make visible with zeroconf. Is there an easy scriptable way to do this? Is there anything that needs to be done by my network admin to enable this? Python or sh ...

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