Multicast DNS
In computer networking, the multicast Domain Name System (mDNS) resolves host names to IP addresses within small networks that do not include a local name server. It is a zero-configuration service, using essentially the same programming interfaces, packet formats and operating semantics as the unicast Domain Name System (DNS). Although Stuart Cheshire designed mDNS to be stand-alone capable, it can work in concert with unicast DNS servers.
The mDNS protocol is published as RFC 6762, uses IP multicast User Datagram Protocol (UDP) packets, and is implemented by the Apple Bonjour and Linux nss-mdns services.
mDNS can work in conjunction with DNS Service Discovery (DNS-SD), a companion zero-configuration technique specified separately in RFC 6763.
Protocol overview
When an mDNS client needs to resolve a host name, it sends an IP multicast query message that asks the host having that name to identify itself. That target machine then multicasts a message that includes its IP address. All machines in that subnet can then use that information to update their mDNS caches.
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All I Knew
by: MadnessWoohoo woohoo woohoo
Here comes an honest looking man
With his round face and his fat hands
See the news, there he is
With the answers to the last quiz
I can never know what I then knew
In a million years
I can never know what I used to
In a million tears
Turn it on we will see
Everything today
Me and you will lose
Our marbles on the way
I'll remember you forever
'Til the day I'm dead
I'll remember us together
And the things we've said
I'll spare a penny for my thoughts
And try to work out what I just bought
Let me think, let me think
Left swimming in an ice rink
Woohoo woohoo
I don't want to hear what someone has to say
I'll just write it down and throw it all away
I could never know what I then knew
In a million years
I could never know what I used to
In a million tears
Woohoo woohoo
I'll remember you forever
'Til the day I'm dead
I'll remember us together
And the things we've said
I could never know what I then knew
In a million years
I could never know what I used to
In a million tears
In a million tears
In a million tears
In a million tears
In a million tears
Latest News for: mdns
Notice of Mitigated Determination of Non Significance (MDNS) SEP 2025 0004 (City of Spokane Valley, WA)
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