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Re: DNS on minimal new installation

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On Fri, Oct 25, 2024 at 09:36:20AM +0100, Joe wrote:
> On Fri, 25 Oct 2024 08:03:43 +0100
> Chris Green <cl@isbd.net> wrote:
> 
> 
> > Yes, OP here again, that's why I said in my original post "(I know
> > they're not quite the same thing, but the result works OK)"
> > I think (on Ubuntu it did anyway) that systemd-resolved.service
> > provides a DNS caching service.  The trouble is that it does it wrong
> > (in many people's opinion), if the 'first' DNS server fails to give an
> > answer it tries the 'second' (correct enough) but it then sticks to
> > using the 'second'.  If your local LAN DNS fails (even momentarily)
> > then it never gets used again and you lose LAN DNS.  This has been
> > argued over endlessly with the systemd developers.
> > 
> 
> I don't know if it's significant, but that's how Microsoft domain DNS
> works, meaning that unless multiple DNS servers replicate. a short loss
> of connection cuts the clients off from Active Directory, rather more
> serious. 

That's one of the first things we teach the poor folks using Windows in
our net: "ipconfig /flushdns".

Followed by a hint that we, non-Windows folks don't need it :-)

Cheers
-- 
t

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DNS on minimal new installation Chris Green <cl@isbd.net> - 2024-10-24 21:20 +0200
  Re: DNS on minimal new installation Greg Wooledge <greg@wooledge.org> - 2024-10-24 21:40 +0200
    Re: DNS on minimal new installation Chris Green <cl@isbd.net> - 2024-10-24 23:00 +0200
  Re: DNS on minimal new installation Joe <joe@jretrading.com> - 2024-10-24 22:30 +0200
    Re: DNS on minimal new installation Greg Wooledge <greg@wooledge.org> - 2024-10-24 22:40 +0200
      Re: DNS on minimal new installation <tomas@tuxteam.de> - 2024-10-25 07:20 +0200
        Re: DNS on minimal new installation Chris Green <cl@isbd.net> - 2024-10-25 09:30 +0200
          Re: DNS on minimal new installation Joe <joe@jretrading.com> - 2024-10-25 10:40 +0200
            Re: DNS on minimal new installation <tomas@tuxteam.de> - 2024-10-25 11:40 +0200
      Re: DNS on minimal new installation Chris Green <cl@isbd.net> - 2024-10-25 09:20 +0200
      Re: DNS on minimal new installation Joe <joe@jretrading.com> - 2024-10-25 10:40 +0200
        Re: DNS on minimal new installation Greg Wooledge <greg@wooledge.org> - 2024-10-25 13:40 +0200
          Re: DNS on minimal new installation eben@gmx.us - 2024-10-25 17:50 +0200

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