Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.debian.user > #194068
| From | Miles Fidelman <mfidelman@meetinghouse.net> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: Federated, decentralised communication on the internet |
| Date | 2018-03-23 02:50 +0100 |
| Message-ID | <vwk0a-85b-9@gated-at.bofh.it> (permalink) |
| References | (9 earlier) <vvW7v-Rk-1@gated-at.bofh.it> <vw7mh-8uM-3@gated-at.bofh.it> <vwgzg-67f-13@gated-at.bofh.it> <vwhbY-6ln-5@gated-at.bofh.it> <vwhEZ-6Kq-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
[Multipart message — attachments visible in raw view] - view raw
On 3/22/18 7:14 PM, Richard Hector wrote:
> On 23/03/18 11:31, Dan Purgert wrote:
>> Richard Hector wrote:
>>> On 23/03/18 01:17, Greg Wooledge wrote:
>>>> [...]
>>>> RFC 1594 <https://tools.ietf.org/html/rfc1594>: A Fully Qualified
>>>> Domain Name (FQDN) is a domain name that includes all higher level
>>>> domains relevant to the entity named. If you think of the DNS as a
>>>> tree-structure with each node having its own label, a Fully Qualified
>>>> Domain Name for a specific node would be its label followed by the
>>>> labels of all the other nodes between it and the root of the tree.
>>>>
>>>> For example, for a host, a FQDN would include the string that
>>>> identifies the particular host, plus all domains of which the host is
>>>> a part up to and including the top-level domain (the root domain is
>>>> always null).
>>> Thanks - Having read that paragraph of the RFC, it doesn't seem to
>>> require any particular number of levels, only that all that exist are
>>> present.
>>>
>>> Richard
>> It requires two "levels"
>>
>> 1. the TLD itself
>> 2. the named host
>>
>> Therefore, "com." (that is, the TLD 'com') is not a valid FQDN. However,
>> "a.com." (that is, the host 'a' on the 'com' TLD) is a valid FQDN.
> That's not what I see in the RFC. The DNS only seems to care about a
> tree of nodes with labels, not whether a particular node represents a
> host or a network or something else. So if the node in question has the
> label "com", and "All the other nodes" consist of just the root domain
> (with the null label), that should be sufficient. Even just the null
> label followed by (empty list) should be enough. What you say may well
> be what was intended, but it doesn't seem specific to me.
>
> I realise practical considerations may be different, but I don't see any
> more requirement than that in that RFC.
>
Christ, why are we still discussing this. (And what does it have to do
with the original question about "Federated, decentralised communication
on the internet?" ... which was originally a question about how
"hostname" is used by Debian) But...
An FQDN defines the location of an entity in the DNS tree. For a host -
which is what we've been discussing, and generally what one is talking
about when talking about FQDN's an FQDN consists of both a hostname AND
a domain name. (Again, in the Linux context, one is generally making
the distinction between "hostname," "network name," and "fully qualified
domain name" - often in the context of setting up a machine, or the
"hostname" and "dnsdomainname" commands, "hostname --fqdn", or the files
where such information is stored.)
When it comes to hosts, it is generally understood that the FQDN
consists of both the hostname and domainname, and an awful lot of
protocol specs cite (and quote) https://tools.ietf.org/html/rfc1983 -
the "Internet Users' Glossary" which says...
Fully Qualified Domain Name (FQDN)
The FQDN is the full name of a system, rather than just its
hostname. For example, "venera" is a hostname and
"venera.isi.edu" is an FQDN. See also: hostname, Domain Name
System.
Now, arguably, "." is an FQDN specifying the very top of the DNS tree,
and "com" (or "com.") specifies the top of the com domain - but who
really cares. Particularly since the whole discussion started around
fully qualified HOST names.
Another common definition of an FQDN is that it uniquely identifies a
node in the DNS tree. By that view "." is the FQDN for the top of the
tree, and "com" (or "com." is the top of the .com domain - but who
really cares, except for pedantic purposes. There aren't any
nameservers that resolve "." or "com" or "mil" - implying that there are
no records in the system for them (maybe there should be, but that's
another question for another day).
Miles Fidelman
--
In theory, there is no difference between theory and practice.
In practice, there is. .... Yogi Berra
Back to linux.debian.user | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
hostname bolakim53@mail2tor.com - 2018-02-15 15:30 +0100
Re: hostname Greg Wooledge <wooledg@eeg.ccf.org> - 2018-02-15 15:40 +0100
Re: hostname Dan Purgert <dan@djph.net> - 2018-02-15 17:40 +0100
Re: domain names, was: hostname Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-02-19 13:30 +0100
Re: domain names, was: hostname Dan Purgert <dan@djph.net> - 2018-02-19 14:50 +0100
Re: domain names, was: hostname Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-02-20 20:40 +0100
Re: domain names, was: hostname Greg Wooledge <wooledg@eeg.ccf.org> - 2018-02-20 20:50 +0100
Re: domain names, was: hostname Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-02-20 21:00 +0100
Re: domain names, was: hostname Dan Purgert <dan@djph.net> - 2018-02-21 01:20 +0100
Re: domain names, was: hostname mick crane <mick.crane@gmail.com> - 2018-02-21 01:30 +0100
Re: domain names, was: hostname Dan Purgert <dan@djph.net> - 2018-02-21 01:50 +0100
Re: domain names, was: hostname Glenn English <ghe2001@gmail.com> - 2018-02-21 02:10 +0100
Re: domain names, was: hostname mick crane <mick.crane@gmail.com> - 2018-02-21 02:10 +0100
Re: domain names, was: hostname Reco <recoverym4n@gmail.com> - 2018-02-21 07:10 +0100
Re: domain names, was: hostname Darac Marjal <mailinglist@darac.org.uk> - 2018-02-21 11:30 +0100
Re: domain names, was: hostname Dan Purgert <dan@djph.net> - 2018-02-21 13:50 +0100
Re: domain names, was: hostname Reco <recoverym4n@gmail.com> - 2018-02-21 13:50 +0100
Re: domain names, was: hostname Gene Heskett <gheskett@shentel.net> - 2018-02-21 13:00 +0100
Re: domain names, was: hostname Reco <recoverym4n@gmail.com> - 2018-02-21 13:50 +0100
Re: domain names, was: hostname Curt <curty@free.fr> - 2018-02-21 16:40 +0100
Re: domain names, was: hostname Frank <zuiderduin@gmx.com> - 2018-02-23 21:00 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-02-19 17:30 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-02-19 19:40 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-02-22 19:00 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-02-23 14:00 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-02-24 04:50 +0100
Re: domain names, was: hostname Curt <curty@free.fr> - 2018-02-26 11:50 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-02-26 19:00 +0100
Re: domain names, was: hostname Dan Purgert <dan@djph.net> - 2018-02-23 14:10 +0100
Re: domain names, was: hostname Joe <joe@jretrading.com> - 2018-02-23 18:10 +0100
Re: domain names, was: hostname mick crane <mick.crane@gmail.com> - 2018-03-21 17:20 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-02-23 17:20 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-20 23:10 +0100
Federated, decentralised communication on the internet (was: domain names, was: hostname) Ben Finney <bignose@debian.org> - 2018-03-21 00:00 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) Forest Dean Feighner <forest.feighner@gmail.com> - 2018-03-21 00:20 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) deloptes <deloptes@gmail.com> - 2018-03-21 22:10 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) Forest Dean Feighner <forest.feighner@gmail.com> - 2018-03-21 22:10 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) deloptes <deloptes@gmail.com> - 2018-03-21 22:30 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) Forest <forest.feighner@gmail.com> - 2018-03-22 01:40 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) deloptes <deloptes@gmail.com> - 2018-03-22 21:40 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) <tomas@tuxteam.de> - 2018-03-21 09:10 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) terryc <terryc@woa.com.au> - 2018-03-21 10:40 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) "Michelle Konzack" <linux4michelle@tamay-dogan.net> - 2018-03-22 07:30 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) Celejar <celejar@gmail.com> - 2018-03-23 19:00 +0100
Re: Federated, decentralised communication on the internet Charlie Gibbs <cgibbs@surfnaked.ca> - 2018-03-21 16:50 +0100
Re: Federated, decentralised communication on the internet Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-21 17:10 +0100
Re: Federated, decentralised communication on the internet Richard Owlett <rowlett@cloud85.net> - 2018-03-21 17:40 +0100
Re: Federated, decentralised communication on the internet Gene Heskett <gheskett@shentel.net> - 2018-03-21 18:00 +0100
Re: Federated, decentralised communication on the internet Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-21 21:40 +0100
Re: Federated, decentralised communication on the internet Richard Owlett <rowlett@cloud85.net> - 2018-03-21 22:30 +0100
Re: Federated, decentralised communication on the internet Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-21 23:00 +0100
Re: Federated, decentralised communication on the internet Richard Owlett <rowlett@cloud85.net> - 2018-03-21 23:30 +0100
Re: Federated, decentralised communication on the internet Dan Purgert <dan@djph.net> - 2018-03-22 01:10 +0100
Re: Federated, decentralised communication on the internet Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-22 01:10 +0100
Re: Federated, decentralised communication on the internet Brian <ad44@cityscape.co.uk> - 2018-03-21 21:50 +0100
Re: Federated, decentralised communication on the internet Richard Owlett <rowlett@cloud85.net> - 2018-03-21 22:50 +0100
Re: Federated, decentralised communication on the internet Brian <ad44@cityscape.co.uk> - 2018-03-21 23:50 +0100
Re: Federated, decentralised communication on the internet Darac Marjal <mailinglist@darac.org.uk> - 2018-03-22 09:40 +0100
Re: Re: Federated, decentralised communication on the internet dekks herton <dekkzz78@gmail.com> - 2018-03-23 00:10 +0100
Re: Federated, decentralised communication on the internet Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-23 01:50 +0100
Re: Federated, decentralised communication on the internet deloptes <deloptes@gmail.com> - 2018-03-21 22:30 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) deloptes <deloptes@gmail.com> - 2018-03-21 22:20 +0100
Re: Federated, decentralised communication on the internet Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-22 00:40 +0100
Re: Federated, decentralised communication on the internet deloptes <deloptes@gmail.com> - 2018-03-22 09:00 +0100
Re: Federated, decentralised communication on the internet Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-22 15:00 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) David Wright <deblis@lionunicorn.co.uk> - 2018-03-21 21:00 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) Greg Wooledge <wooledg@eeg.ccf.org> - 2018-03-21 21:30 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) Joe <joe@jretrading.com> - 2018-03-21 22:00 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) deloptes <deloptes@gmail.com> - 2018-03-21 22:40 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) deloptes <deloptes@gmail.com> - 2018-03-21 22:40 +0100
Re: Federated, decentralised communication on the internet Richard Hector <richard@walnut.gen.nz> - 2018-03-21 23:10 +0100
Re: Federated, decentralised communication on the internet Dan Purgert <dan@djph.net> - 2018-03-22 01:20 +0100
Re: Federated, decentralised communication on the internet Greg Wooledge <wooledg@eeg.ccf.org> - 2018-03-22 13:20 +0100
Re: Federated, decentralised communication on the internet Richard Hector <richard@walnut.gen.nz> - 2018-03-22 23:10 +0100
Re: Federated, decentralised communication on the internet Dan Purgert <dan@djph.net> - 2018-03-22 23:50 +0100
Re: Federated, decentralised communication on the internet Richard Hector <richard@walnut.gen.nz> - 2018-03-23 00:20 +0100
Re: Federated, decentralised communication on the internet Dan Purgert <dan@djph.net> - 2018-03-23 02:10 +0100
Re: Federated, decentralised communication on the internet Richard Hector <richard@walnut.gen.nz> - 2018-03-23 04:00 +0100
Re: Federated, decentralised communication on the internet Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-23 02:50 +0100
Re: Federated, decentralised communication on the internet Richard Hector <richard@walnut.gen.nz> - 2018-03-23 04:10 +0100
Re: Federated, decentralised communication on the internet Greg Wooledge <wooledg@eeg.ccf.org> - 2018-03-23 13:30 +0100
Re: Federated, decentralised communication on the internet Phil Dobbin <bukowskiscat@gmail.com> - 2018-03-23 15:10 +0100
Re: Federated, decentralised communication on the internet Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-23 17:50 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) David Wright <deblis@lionunicorn.co.uk> - 2018-03-22 01:00 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) deloptes <deloptes@gmail.com> - 2018-03-22 09:20 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) Joe <joe@jretrading.com> - 2018-03-22 09:50 +0100
Re: Federated, decentralised communication on the internet (was: domain names, was: hostname) Greg Wooledge <wooledg@eeg.ccf.org> - 2018-03-22 14:00 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-22 18:50 +0100
Re: domain names, was: hostname Greg Wooledge <wooledg@eeg.ccf.org> - 2018-03-22 19:10 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-03-22 21:30 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-23 03:10 +0100
Re: domain names, was: hostname Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-23 17:00 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-23 18:10 +0100
Re: domain names, was: hostname Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-23 18:10 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-24 01:50 +0100
Re: domain names, was: hostname Miles Fidelman <mfidelman@meetinghouse.net> - 2018-03-24 14:00 +0100
Re: domain names, was: hostname "Michelle Konzack" <linux4michelle@tamay-dogan.net> - 2018-03-24 14:10 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-03-23 20:20 +0100
Re: domain names, was: hostname rhkramer@gmail.com - 2018-03-23 21:10 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-03-23 21:30 +0100
Re: domain names, was: hostname Michael Stone <mstone@debian.org> - 2018-03-24 02:30 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-24 02:10 +0100
Re: domain names, was: hostname Joe <joe@jretrading.com> - 2018-03-23 23:30 +0100
Re: domain names, was: hostname Forest <forest.feighner@gmail.com> - 2018-03-23 23:50 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-03-24 00:00 +0100
Re: domain names, was: hostname rhkramer@gmail.com - 2018-03-24 01:20 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-24 02:20 +0100
Re: domain names, was: hostname rhkramer@gmail.com - 2018-03-24 02:40 +0100
Re: domain names, was: hostname Dan Purgert <dan@djph.net> - 2018-03-22 23:30 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-23 03:50 +0100
Re: domain names, was: hostname Dan Purgert <dan@djph.net> - 2018-03-23 11:50 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-23 16:50 +0100
Re: domain names, was: hostname Greg Wooledge <wooledg@eeg.ccf.org> - 2018-03-23 17:00 +0100
Re: domain names, was: hostname Dan Purgert <dan@djph.net> - 2018-03-23 18:50 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-23 20:00 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-03-23 21:10 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-03-21 00:10 +0100
Re: domain names, was: hostname Richard Hector <richard@walnut.gen.nz> - 2018-03-21 04:40 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-03-21 18:30 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-03-21 21:10 +0100
Re: domain names, was: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-03-22 02:10 +0100
Re: domain names, was: hostname Brad Rogers <brad@fineby.me.uk> - 2018-02-19 18:30 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-02-19 20:00 +0100
Re: domain names, was: hostname Brad Rogers <brad@fineby.me.uk> - 2018-02-19 20:20 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-02-19 20:30 +0100
Re: domain names, was: hostname Joe <joe@jretrading.com> - 2018-02-19 21:40 +0100
Re: domain names, was: hostname Brian <ad44@cityscape.co.uk> - 2018-02-19 21:50 +0100
Re: domain names, was: hostname Roberto C. Sánchez <roberto@debian.org> - 2018-02-19 22:00 +0100
Re: domain names, was: hostname rhkramer@gmail.com - 2018-02-19 22:20 +0100
Re: domain names, was: hostname Reco <recoverym4n@gmail.com> - 2018-02-19 22:00 +0100
Re: hostname deloptes <deloptes@gmail.com> - 2018-02-15 19:10 +0100
Re: hostname Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-02-15 20:50 +0100
Re: hostname Gene Heskett <gheskett@shentel.net> - 2018-02-15 21:40 +0100
Re: hostname Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-02-15 23:30 +0100
Re: hostname Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-02-15 23:50 +0100
Re: hostname Gene Heskett <gheskett@shentel.net> - 2018-02-16 01:30 +0100
Re: hostname deloptes <deloptes@gmail.com> - 2018-02-16 07:50 +0100
Re: hostname Dan Purgert <dan@djph.net> - 2018-02-16 00:50 +0100
Re: hostname deloptes <deloptes@gmail.com> - 2018-02-15 22:20 +0100
Re: hostname Nicholas Geovanis <nickgeovanis@gmail.com> - 2018-02-15 20:50 +0100
Re: hostname David Wright <deblis@lionunicorn.co.uk> - 2018-02-16 00:20 +0100
Re: hostname Dan Purgert <dan@djph.net> - 2018-02-16 01:00 +0100
hostname Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2018-02-18 09:10 +0100
Re: hostname Reco <recoverym4n@gmail.com> - 2018-02-18 09:50 +0100
csiph-web