I previously posted a writeup based on Arch Wiki instructions, and upon updating to 3.5.5 this no longer works.
The config file still exists, but mDNS will not operate.
I’ve managed to enable the avahi-daemon.service unit file and this validly now registers the interface link to mDNS per the avahi log, but systemd-resolve still shows it as unsupported (i.e., -mDNS listed with the wlan0 link).
It appears that the Arch Wiki now redirects mdns to the Avahi page, and has instructions for enabling Avahi. However, it previously linked to systemd-resolve for instructions including NetworkManager as well - clearly this changed (yes the wiki entry still exists), and the configuration I had previously (also explained in the Arch Wiki) does not work. But I can’t find any reasoning behind this. It’s also clear that NetworkManager is still being used by the system, but this
Does anyone have any more pertinent and explicit information I can read up about these changes? The nerd in me wants to know the reasoning 😅
Sure… but literally any type of lookup is vulnerable to MITM without something like DNSSEC, which isn’t too common outside of enterprise or managed DNS servers like cloudflare, etc (which still require configuration). Most users, unless they WORK in InfoSec, literally don’t bother with (or even are aware of) it.
At that point you’re kinda just drawing up what-if’s - and while technically valid, it’s also a very limited concern.
It’s more common to access a computer by hostname on a LAN than it is to have a MITM on your network. If you do, you have bigger concerns.