alt Hacker News<hostname>.local
Here's me pinging my laptop (macOS 27) from my file server (Ubuntu 24.04)
~ ping persephone.local
PING persephone.local (fd82:74ca:1cef:385a:1897:2e4b:a726:18b6%3) 56 data bytes
64 bytes from fd82:74ca:1cef:385a:1897:2e4b:a726:18b6: icmp_seq=1 ttl=64 time=0.496 ms
64 bytes from fd82:74ca:1cef:385a:1897:2e4b:a726:18b6: icmp_seq=2 ttl=64 time=0.515 ms
^C
--- persephone.local ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.496/0.505/0.515/0.009 ms
Only if you know the name already and no two hosts took the same name, assuming it works at all. Shouldn't those question marks be the hostnames on arp -a? On some networks it shows them, on others it doesn't.