why fish for fwupd? systemd-resolved which is everywhere, will open (at request) an LLMNR server (a.k.a. mDNS, nee microsoft netbios) on port 5355.
With IoT everyone have access to your LAN, so now people are making sure linux also join the REDACTED party
btw, fix for fwupmdg, since they have a low quality default conf file without commented out defaults:
```
# /etc/fwupd/fwupd.conf
[fwupd]
P2pPolicy=none
```
fix for resolved is commented out on /etc/systemd/resolved.conf `LLMNR=no`, and you probably also want `DNSStubListener=no`. heck here is a good default
```
# /etc/systemd/resolved.conf
[Resolve]
DNS=9.9.9.9#dns.quad9.net 149.112.112.112#dns.quad9.net 2620:fe::fe#dns.quad9.net 2620:fe::9#dns.quad9.net
FallbackDNS=127.0.0.1 ::1
Domains=~.
DNSOverTLS=yes
LLMNR=no
DNSStubListener=no
```
With IoT everyone have access to your LAN, so now people are making sure linux also join the REDACTED party
btw, fix for fwupmdg, since they have a low quality default conf file without commented out defaults:
fix for resolved is commented out on /etc/systemd/resolved.conf `LLMNR=no`, and you probably also want `DNSStubListener=no`. heck here is a good default