mdns hilarity

Three computers fnuc.local = Fedora 30 Server flap.local = Fedora 30 Workstation fmac.local = Fedora Rawhide Workstation When doing 'ssh chris@' from -> to, the following combos work: flap -> fnuc flap -> fmac fmac -> fnuc fmac -> flap But fnuc, the Fedora Server, will not resolve fmac or flap. ssh: Could not resolve hostname flap.local: Name or service not known ssh: Could not resolve hostname fmac.local: Name or service not known I can of course use IP addresses and it works fine. But that's driving me nuts. Originally the Workstations could not see the Server until I added mdns service to firewalld's default zone 'FedoraServer'. If I use nmap from fnuc (server), it's clearly sees these laptops. [chris@fnuc ~]$ sudo nmap -Pn -sU -p5353 10.0.0.121 [sudo] password for chris: Starting Nmap 7.70 ( https://nmap.org ) at 2019-06-24 22:29 MDT Nmap scan report for 10.0.0.121 Host is up (0.019s latency). PORT STATE SERVICE 5353/udp open|filtered zeroconf MAC Address: 00:C2:C6:F0:52:53 (Intel Corporate) Nmap done: 1 IP address (1 host up) scanned in 0.62 seconds [chris@fnuc ~]$ sudo nmap -Pn -sU -p5353 10.0.0.219 Starting Nmap 7.70 ( https://nmap.org ) at 2019-06-24 22:29 MDT Nmap scan report for 10.0.0.219 Host is up (0.00041s latency). PORT STATE SERVICE 5353/udp open|filtered zeroconf MAC Address: C8:2A:14:02:88:99 (Apple) Nmap done: 1 IP address (1 host up) scanned in 0.62 seconds [chris@fnuc ~]$ Haha! I'm going to start cackling. Now hilariously, this fnuc Fedora Server was running Fedora 29, upgraded many times, and this was working. But after a clean install of Fedora 30, it's not working and I can't figure out why. -- Chris Murphy