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Re: Temporary failure in name resolution

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On 11/01/2024 10:19, Greg Wooledge wrote:
> On Thu, Jan 11, 2024 at 10:10:43AM +0700, Max Nikulin wrote:
>> On 11/01/2024 03:25, Greg Wooledge wrote:
>>> On Wed, Jan 10, 2024 at 07:19:41PM +0000, Rodolfo Medina wrote:
>>>> Greg Wooledge <greg@wooledge.org> writes:
>>>>
>>>>> What is the output of "grep -F $(hostname) /etc/hosts"?
>>>>
>>>>    127.0.1.1       caterina-thinkpad.home  caterina-thinkpad

>> I would say that it is better to fix discrepancy between (likely)
>> /etc/hostname and /etc/hosts and to use a consistent name. If "thinkpad" is
>> the preferred one then update /etc/hosts otherwise check
> 
> I wouldn't
> want to assume that nothing is using the name "caterina-thinkpad", so it
> would be wise to retain it.

A fair point. Adding FQDN and "thinkpad" before existing names should be 
better. I would still try to find and fix existing occurrences of the 
old name

     grep -r caterina-thinkpad /etc

or even "grep -R"

> Also, for the love of glob, WHY THE SYSTEMD bullshit... you change the
> hostname on Debian by editing the /etc/hostname file, and then by
> running the "hostname" command as root with the new name as its
> argument (or rebooting).
> 
> I don't know why "hostnamectl" even exists as a concept.  It's repulsive.
> It also fails to be init-system-agnostic, with no upside to compensate.

I assume that systemd is the default, otherwise the chance that the user 
knows lower level commands is higher. hostnamectl changes both the 
/etc/hostname file and kernel runtime state, so it ensures consistent 
configuration. Moreover, I expect that more services using hostname are 
notified and will not use the stale name. Candidates may be (while I am 
unsure if it really applicable) bluetoothd, multicast DNS responder for 
names and service discovery queries, and perhaps more.

Perhaps hostname was changed from GUI and it is similar to hostnamectl.

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Thread

Temporary failure in name resolution Rodolfo Medina <rodolfo.medina@gmail.com> - 2024-01-10 19:20 +0100
  Re: Temporary failure in name resolution <tomas@tuxteam.de> - 2024-01-10 19:30 +0100
    Re: Temporary failure in name resolution Rodolfo Medina <rodolfo.medina@gmail.com> - 2024-01-10 19:40 +0100
      Re: Temporary failure in name resolution Greg Wooledge <greg@wooledge.org> - 2024-01-10 19:50 +0100
        Re: Temporary failure in name resolution Rodolfo Medina <rodolfo.medina@gmail.com> - 2024-01-10 20:30 +0100
          Re: Temporary failure in name resolution Marco Moock <mm@dorfdsl.de> - 2024-01-10 20:30 +0100
          Re: Temporary failure in name resolution Greg Wooledge <greg@wooledge.org> - 2024-01-10 21:30 +0100
            Re: Temporary failure in name resolution Max Nikulin <manikulin@gmail.com> - 2024-01-11 04:20 +0100
              Re: Temporary failure in name resolution Greg Wooledge <greg@wooledge.org> - 2024-01-11 04:30 +0100
                Re: Temporary failure in name resolution Max Nikulin <manikulin@gmail.com> - 2024-01-12 04:10 +0100
              Re: Temporary failure in name resolution David Wright <deblis@lionunicorn.co.uk> - 2024-01-11 06:00 +0100
              Re: Temporary failure in name resolution Curt <curty@free.fr> - 2024-01-11 17:40 +0100
                Re: Temporary failure in name resolution Marco Moock <mm@dorfdsl.de> - 2024-01-11 18:10 +0100
                Re: Temporary failure in name resolution debian-user@howorth.org.uk - 2024-01-12 12:30 +0100
                Re: Temporary failure in name resolution Byung-Hee HWANG <soyeomul@doraji.xyz> - 2024-01-12 14:10 +0100
                Re: Temporary failure in name resolution Curt <curty@free.fr> - 2024-01-12 17:10 +0100
                Re: Temporary failure in name resolution Jeffrey Walton <noloader@gmail.com> - 2024-01-12 17:30 +0100
                Re: Temporary failure in name resolution Jeffrey Walton <noloader@gmail.com> - 2024-01-12 18:40 +0100
                Re: Temporary failure in name resolution debian-user@howorth.org.uk - 2024-01-12 18:40 +0100
                Re: Temporary failure in name resolution John Hasler <john@sugarbit.com> - 2024-01-12 20:50 +0100
                Re: Temporary failure in name resolution debian-user@howorth.org.uk - 2024-01-12 19:20 +0100
          Re: Temporary failure in name resolution <tomas@tuxteam.de> - 2024-01-11 06:30 +0100

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