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Re: Simple Linux to Linux(Debian) email

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On 2019-04-12 10:57, Dan Purgert wrote:
> mick crane wrote:
>> On 2019-04-11 17:16, mick crane wrote:
>>> On 2019-04-11 17:05, Greg Wooledge wrote:
>>>> On Thu, Apr 11, 2019 at 05:02:46PM +0100, mick crane wrote:
>>>>> I think that is what dynamic ip address services do, change the
>>>>> ipaddress
>>>>> but the service has to be on the ISP's router ?
>>>>> Do I understand correctly then when your isp/home address changes
>>>>> your box
>>>>> broadcasts its domain new address to the internet ?
>>>> 
>>>> It doesn't have to be on the router.  You can set up a hook in 
>>>> Debian
>>>> to run an arbitrary command whenever your IP address is changed by
>>>> DHCP.
>>>> This hook receives the old and new IP addresses, and some other
>>>> things,
>>>> as environment variables.  It's about 3 lines of code to set it up.
>>>> No
>>>> parsing of the output of any ip or ifconfig command is needed.
>>>> 
>>>> https://mywiki.wooledge.org/IpAddress
>>> 
>>> I'll have a read but there must be something I don't understand.
>>> Thought there was a hierarchy of domain names mapped to ipaddresses
>>> that all the different servers can query as to where something is.
>> 
>> Ok I think I see, you can host your own domain if you have a fixed
>> ipaddress but if have ipaddress that changes need to register domain
>> name and have company host it and advertise they know where it is but
>> can change the nameservers for the domain from theirs to yours at
>> changed ipaddress.
>> You can't willy nilly broadcast any domain to the internet yourself.
> 
> Well, once your domain is registered (for example, mine), you can 
> either
> 
> 
>   1. give your registrar the IP address they should point the domain 
> to.
>       This is easiest with static IP address assignments from your ISP,
>       but there's no reason you couldn't do it on a dynamic IP
> 
>   OR
> 
>   2. Use a dynamic DNS provider (e.g. dyndns, no-ip, afraid, many
>       others), and have them automatically update the DNS registration
>       when your IP address changes.
> 
> Note that for option 2, you tell your registrar to use those other
> nameservers, rather than their own.
> 
> I use option 2 myself, registered via ... oh I think 1&1 ... but using
> no-ip to provide my dyndns (although the IP hasn't changed in well over
> a year - I still don't want to be caught unawares :) )

I thought those dynamic dns services offered a sub domain of their own 
domains.
Can you have any registered domain point to dynamic dns servers and them 
redirect it ?
I have wondered what they do to stop people broadcasting their own top 
level domain.
-- 
Key ID    4BFEBB31

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Thread

Simple Linux to Linux(Debian) email Mark Fletcher <mark27q1@gmail.com> - 2019-04-08 14:40 +0200
  Re: Simple Linux to Linux(Debian) email Thomas Pircher <thp+debian@p5r.uk> - 2019-04-08 15:20 +0200
    Re: Simple Linux to Linux(Debian) email Mark Fletcher <mark27q1@gmail.com> - 2019-04-08 15:50 +0200
    Re: Simple Linux to Linux(Debian) email Celejar <celejar@gmail.com> - 2019-04-09 01:00 +0200
    RESOLVED: Simple Linux to Linux(Debian) email Mark Fletcher <mark27q1@gmail.com> - 2019-04-11 18:10 +0200
  Re: Simple Linux to Linux(Debian) email Ryan Nowakowski <tubaman@fattuba.com> - 2019-04-08 15:30 +0200
    Re: Simple Linux to Linux(Debian) email Mark Fletcher <mark27q1@gmail.com> - 2019-04-08 15:40 +0200
  Re: Simple Linux to Linux(Debian) email Joe <joe@jretrading.com> - 2019-04-08 15:40 +0200
    Re: Simple Linux to Linux(Debian) email Mark Fletcher <mark27q1@gmail.com> - 2019-04-08 16:40 +0200
  Re: Simple Linux to Linux(Debian) email <tomas@tuxteam.de> - 2019-04-08 17:50 +0200
    Re: Simple Linux to Linux(Debian) email Erik Christiansen <dvalin@internode.on.net> - 2019-04-09 03:50 +0200
  Re: Simple Linux to Linux(Debian) email Jan Claeys <lists@janc.be> - 2019-04-09 02:40 +0200
    Re: Simple Linux to Linux(Debian) email Mark Fletcher <mark27q1@gmail.com> - 2019-04-11 17:50 +0200
      Re: Simple Linux to Linux(Debian) email Greg Wooledge <wooledg@eeg.ccf.org> - 2019-04-11 18:00 +0200
        Re: Simple Linux to Linux(Debian) email Mark Fletcher <mark27q1@gmail.com> - 2019-04-11 18:20 +0200
      Re: Simple Linux to Linux(Debian) email Greg Wooledge <wooledg@eeg.ccf.org> - 2019-04-11 18:10 +0200
        Re: Simple Linux to Linux(Debian) email mick crane <mick.crane@gmail.com> - 2019-04-11 18:20 +0200
          Re: Simple Linux to Linux(Debian) email mick crane <mick.crane@gmail.com> - 2019-04-12 10:00 +0200
            Re: Simple Linux to Linux(Debian) email Dan Purgert <dan@djph.net> - 2019-04-12 12:10 +0200
              Re: Simple Linux to Linux(Debian) email mick crane <mick.crane@gmail.com> - 2019-04-12 12:30 +0200
                Re: Simple Linux to Linux(Debian) email Dan Purgert <dan@djph.net> - 2019-04-12 13:10 +0200
                Re: Simple Linux to Linux(Debian) email Dan Ritter <dsr@randomstring.org> - 2019-04-12 14:00 +0200
                Re: Simple Linux to Linux(Debian) email Gene Heskett <gheskett@shentel.net> - 2019-04-12 14:40 +0200
                Re: Simple Linux to Linux(Debian) email mick crane <mick.crane@gmail.com> - 2019-04-12 15:30 +0200
                Re: Simple Linux to Linux(Debian) email Dan Purgert <dan@djph.net> - 2019-04-12 17:00 +0200
                Re: Simple Linux to Linux(Debian) email Celejar <celejar@gmail.com> - 2019-04-12 23:20 +0200
                Re: Simple Linux to Linux(Debian) email mick crane <mick.crane@gmail.com> - 2019-04-13 00:20 +0200
      Re: Simple Linux to Linux(Debian) email mick crane <mick.crane@gmail.com> - 2019-04-11 18:10 +0200
      Re: Simple Linux to Linux(Debian) email Dan Ritter <dsr@randomstring.org> - 2019-04-11 18:20 +0200
      Re: Simple Linux to Linux(Debian) email Jan Claeys <lists@janc.be> - 2019-04-11 19:10 +0200

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