Can't set hostname

Utini · 2019-02-09 09:29:11

Hello everyone,

I have set my hostname right after setting up arch but it seems like it recently broke.
My hostname usually is "_____" (5x underlinie).

And so the content of my "/etc/hostname" is:

_____

So I tried using hostnamectl:

hostnamectl set-hostname _____
Could not set property: Message recipient disconnected from message bus without replying

Any ideas?

makh · 2019-02-09 09:53:44

Hi

You can try:

echo "machine-name" > /etc/hostname

Reboot.

It should work.

Thankyou

Utini · 2019-02-09 09:58:26

Well, this is weird?

sudo echo "_____" > /etc/hostname
bash: /etc/hostname: Permission denied

And then again, /etc/hostname already contains the hostname I want.

Slithery · 2019-02-09 10:09:19

You're trying to set an invalid hostname, the _ isn't an allowed character.

man hostname wrote:

Each element of the hostname must be from 1 to 63 characters long and the entire hostname, including the dots, can be at most 253 characters long. Valid characters for hostnames are ASCII(7) letters from a to z, the digits from 0 to 9, and the hyphen (-). A hostname may not start with a hyphen.

WorMzy · 2019-02-09 10:19:21

Utini wrote:

Well, this is weird?

sudo echo "_____" > /etc/hostname
bash: /etc/hostname: Permission denied

Nope, that's entirely expected. Shell redirection happens as the user running the command. You would need to be running as root, or you would need to pipe to 'sudo tee' instead of redirecting if you want to write to that file. See, e.g. https://stackoverflow.com/questions/822 … sion-to-wr

But in the case of your hostname, see Slithery's post.

Utini · 2019-02-09 10:23:36

Thanks for your responses.
Sad to see that my favourite hostname for many years is not available anymore

Slithery · 2019-02-09 10:25:27

It's never been a valid hostname, just blind luck that it didn't break anything before now.

Arch Linux

#1 2019-02-09 09:29:11

Can't set hostname

#2 2019-02-09 09:53:44

Re: Can't set hostname

#3 2019-02-09 09:58:26

Re: Can't set hostname

#4 2019-02-09 10:09:19

Re: Can't set hostname

#5 2019-02-09 10:19:21

Re: Can't set hostname

#6 2019-02-09 10:23:36

Re: Can't set hostname

#7 2019-02-09 10:25:27

Re: Can't set hostname

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