Dearie, Thanks for your reply.
> Sent: Tuesday, March 01, 2022 at 3:10 AM > From: to...@tuxteam.de > To: debian-user@lists.debian.org > Subject: Re: What should I put inside the file called wlan0? > > > So if you have this in your /etc/network/interfaces somewhere: > > ... > ## Bahn ICE > iface wlan0 inet dhcp > wireless-essid WIFIonICE > wireless-mode Auto > ... > > (it's actually my current setting, BTW :) you could swap that > out to some file under interfaces.d. The contents of my current /etc/network/interfaces file are: # The primary network interface allow-hotplug wlp3s0 iface wlp7s0 inet static wpa-ssid JupiterRising wpa-psk {a long string of alphanumeric characters} address 192.168.1.99/24 gateway 192.168.1.1 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 1.1.1.1 8.8.8.8 Are you saying that I can cut out the above contents and paste them into a file called wlp7s0 (whose path is /etc/network/interfaces.d/)? Best regards. Stella