Network service discovery using Zeroconf


KDNSSD is a library for handling the DNS-based Service Discovery Protocol (DNS-SD), the layer of Zeroconf that allows network services, such as printers, to be discovered without any user intervention or centralized infrastructure.


If you are using CMake, you need to have

1 find_package(KF5DNSSD NO_MODULE)

(or similar) in your CMakeLists.txt file, and you need to link to KF5::DNSSD.

If you are writing an application that wants to discover services on the network, use KDNSSD::ServiceBrowser. You can also find available service types using ServiceTypeBrowser.

If you want to announce the availability of a service provided by your application, use KDNSSD::PublicService.

KDNSSD::DomainBrowser allows you to find domains (other than the local one) recommended for browsing or publishing to.

Note that KDNSSD::ServiceBrowser::isAvailable() provides information about the availability of the services provided by this library generally, not just for browsing services.

More information

More information about DNS-SD can be found in the online documentation for Apple's implementation of Zeroconf, Bonjour.

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