Getting networking going with new Archlinux installation

 So I installed Archlinux as per the instructions. I'm not a noob, but surely I can't be alone in thinking 

https://wiki.archlinux.org/title/Installation_guide

is a little light on details. Let's give an example. Having not managed to get networking going I was following the step by step. 

It says consider installing...

"...software necessary for networking "

Oh. That thing in blue is a hyperlink. Ok, networking is kinda important, I'll click on it.

https://wiki.archlinux.org/title/Network_configuration#Network_management

"To troubleshoot a network connection"  it says, ensure, among other things, that

"Your network interface has an IP address."

Ok let's look at IP address.

 

Not exactly a step by step guide! 
But thankfully some dude has posted a youtube video. Yes, after 3 evenings of reading the briefest of wikis, I've resorted to youtube tutorials.


https://www.youtube.com/watch?v=iedzVZlAbqI

Arch Linux Enable Networking in new installation PART-2

And it almost worked. Except it didn't. I still got "Network is unreachable" when trying to ping my router. 

Hm, maybe it's because I tried to manually set an IP address the other day. So I tried that "flush" instruction given on the wiki page. Sure enough, the IP I set has gone.


Now back to my 

/etc/systemd/network/20-wired.network

file, which is only four lines long.

[Match]

name=en*

[Network]

DHCP=yes


I studied it, comparing it with the example in the video. And reaslised that name didn't have a lowercase first letter on the video. I changed it to Name and then issued

systemctl restart systemd-networkd

systemctl restart systemd-resolved

and lo!

ip addr 

now shows an IP address that is clearly DHCP assigned. Oh and I can ping www.google.com. Happy days!

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