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Groups > linux.debian.user > #194743

Re: changing local domain name

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On 4/12/2018 10:21 PM, David Wright wrote:
> On Tue 03 Apr 2018 at 08:37:29 (+0200), john doe wrote:
>> On 3/30/2018 6:11 PM, David Wright wrote:
>>> On Fri 30 Mar 2018 at 08:05:31 (+0200), john doe wrote:
>>>> On 3/29/2018 9:56 PM, mick crane wrote:
>>>>> On 2018-03-29 19:34, Curt wrote:
>>>>>> On 2018-03-29, mick crane <mick.crane@gmail.com> wrote:
>>>>>>> following recent about hostname it seems I've been under
>>>>>>> misunderstanding that ".local" was OK so now I change local domain to
>>>>>>> ".home" .
>>>>>>> It's not just domainname and /etc/hosts. It's every frigging where.
>>>>>>> apache
>>>>>>> roundcube
>>>>>>> postfix
>>>>>>> now my ISP SMTP server is moaning.
>>>>>>>
>>>>>>> think I got them all except cups is unhappy, I don't know why.
>>>>>>>
>>>>>>
>>>>>> There's actually a wiki on this:
>>>>>>
>>>>>> https://wiki.debian.org/HowTo/ChangeHostname
>>>>>>
>>>>>> For cups you might look at
>>>>>>
>>>>>> /etc/printcap
>>>>>>
>>>>>> the part after rm=
>>>>>>   rm=einstein
>>>>>>      ********
>>>>>>
>>>>>> Of course that part is the part to the left of the first dot in your
>>>>>> fqdn.
>>>>>>
>>>>>> Anyway, good luck (my hostname is incorrect, but as it has never caused
>>>>>> me any misery, I've left well enough alone up to this point).
>>>>>
>>>>> Oh, there's more in /var. I'm going to ignore the binary files as
>>>>> I don't think they are current and I don't know how to edit them
>>>>> anyway.
>>>>> In fact the installation is a bit old I could do with tidying it
>>>>> all up anyway so I might as well start afresh.
>>>>>
>>>>
>>>> I  always start from scratch when I need to change the
>>>> hostname/domain on a host.
>>>> That's probably the only reason I need to start afresh!
>>>
>>> Unless you're running an advertised server, in which case one would
>>> wonder why you felt the need to change things (perhaps part of a
>>> bigger disruption), I can only say I find this rather extreme.
>>
>> Thanks for the caution.
>> As part of improving my network; I went for meaningless hostname and
>> using CNAME record to better describe the host.
> 
> It's not really the hostnames that concern me, but the name of the
> domain. (I've only seen the one posting about hostnames, and it's
> not settled whether they were serious or not. I tried to give them
> the benefit of the doubt with RFC 8117.)
> 
>>> Years ago, I would clone a system (or build in a different box) and then
>>> move it into its new home with very few files to alter. About the only
>>> confusion caused was to ARP, and that only happened when I was on
>>> thinwire ethernet and lasted a few minutes.
>>>
>>> I've struggled to find a multitude of files with the name of the
>>> domain in them. Beyond hosts and mailname, where are you finding them
>>> all?
>>
>> For starter I use recursive grep on '/etc' '/home' ...
> 
> I didn't say "how do you¹ find them" but "where are you finding them".
> I wouldn't be bothering with /home: anything there is self-inflicted
> and can be tidied up any time. The critical ones are /etc and /var/lib
> because files here are involved in running the machine.
> 
> Apart from the obvious suspects (the files that configure the network
> and email system), I don't see many. On a wired system:
> 
> /etc/hosts:127.0.1.1 ← canonical domainname and hostname
> /etc/exim4/update-exim4.conf.conf ← according to your configuration
> /etc/mailname ← ditto
> 
> Everything else is either logs (in the past) or cache (ephemeral):
> 
> /etc/.git/logs/refs/heads/master ← etckeeper package is installed
> /etc/.git/logs/HEAD ← ditto
> /var/log/… ← occasional references
> /var/cache/debconf/config.dat ← remembers what you configured
> 
> ¹ "you" being the person who wrote "It's every frigging where."
> 

As ilustrated by the above not every one is an english speaker and could 
misunderstand the point you are trying to make! :)

An other thing I'd like to add is that not every one has the same level 
of experience.

-John
-- 
John Doe

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Thread

changing local domain name mick crane <mick.crane@gmail.com> - 2018-03-29 19:10 +0200
  Re: changing local domain name Curt <curty@free.fr> - 2018-03-29 20:40 +0200
    Re: changing local domain name mick crane <mick.crane@gmail.com> - 2018-03-29 22:00 +0200
      Re: changing local domain name john doe <johndoe65534@mail.com> - 2018-03-30 08:10 +0200
        Re: changing local domain name David Wright <deblis@lionunicorn.co.uk> - 2018-03-30 18:20 +0200
          Re: changing local domain name john doe <johndoe65534@mail.com> - 2018-04-03 08:40 +0200
            Re: changing local domain name David Wright <deblis@lionunicorn.co.uk> - 2018-04-12 22:30 +0200
              Re: changing local domain name john doe <johndoe65534@mail.com> - 2018-04-13 13:30 +0200
                Re: changing local domain name Dan Purgert <dan@djph.net> - 2018-04-13 14:30 +0200
                Re: changing local domain name rhkramer@gmail.com - 2018-04-13 14:50 +0200
                Re: changing local domain name Dan Purgert <dan@djph.net> - 2018-04-13 15:10 +0200
                Re: changing local domain name David Wright <deblis@lionunicorn.co.uk> - 2018-04-13 16:10 +0200
    Re: changing local domain name Brian <ad44@cityscape.co.uk> - 2018-03-30 00:10 +0200
      Re: changing local domain name David Wright <deblis@lionunicorn.co.uk> - 2018-03-30 04:10 +0200
        Re: changing local domain name Curt <curty@free.fr> - 2018-03-30 10:40 +0200
          Re: changing local domain name Brian <ad44@cityscape.co.uk> - 2018-03-30 15:10 +0200
        Re: changing local domain name Brian <ad44@cityscape.co.uk> - 2018-03-30 20:30 +0200
          Re: changing local domain name David Wright <deblis@lionunicorn.co.uk> - 2018-03-31 04:20 +0200
            Re: changing local domain name Joe <joe@jretrading.com> - 2018-03-31 13:40 +0200
              Re: changing local domain name David Wright <deblis@lionunicorn.co.uk> - 2018-03-31 17:20 +0200
                Re: changing local domain name Gene Heskett <gheskett@shentel.net> - 2018-03-31 17:30 +0200
                Re: changing local domain name Joe <joe@jretrading.com> - 2018-03-31 20:50 +0200
                Re: changing local domain name David Wright <deblis@lionunicorn.co.uk> - 2018-04-03 00:10 +0200
                Re: changing local domain name Dan Purgert <dan@djph.net> - 2018-04-03 13:30 +0200

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