On Sat, Aug 03, 2024 at 06:56:42PM +1000, George at Clug wrote: > Hi, > > > What is the purpose of mDNS ? > > > It seems to be for multicast?
It is not /for/ multicast IP, it /uses/ multicast for name resolution. In a nutshell [1], it sends a "DNS" request to the local network asking "who is called Fritz here?", and Fritz answers with its IP. So sys-non- admins don't have to set up a name server. It is part of Microsoft's promise that anyone can be sysadmin because no one is. And then you end up in The Cloud(TM), which doesn't work either. > Does that mean its usage would be to say send video to a group of > workstations all at the same time? Like a corporate wide message > from the CEO? No. In this case you use multicast IP to transfer videos. No relation among both except that multicast IP is the transport. Cheers [1] https://en.wikipedia.org/wiki/MDNS -- t
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