[Samba] FW: How to determine DNS anomaly

[L. van Belle]

Hai Rowland, 

> -----Oorspronkelijk bericht-----
> Van: samba Namens Rowland Penny via samba
> Verzonden: vrijdag 6 mei 2022 12:48
> Aan: samba at lists.samba.org
> CC: Rowland Penny <rpenny at samba.org>
> Onderwerp: Re: [Samba] FW: How to determine DNS anomaly
> 
> On Fri, 2022-05-06 at 12:25 +0200, L. van Belle via samba wrote:
> > Aah... stupid email client and borking the html layout.
> > a resend but in plain text.
> >
> > Hai,
> >
> > Ah.. sorry direct mail and not the list..
> > Yes, thats one i missed, your : search MY.. I assumed.. (yeah that's
> > wrong
> > assumptions..)..
> >
> > but now I know you use netplan..
> > Add in the netplan config the following so you are always sure your
> > resolv.conf is right.
> 
> Hi Louis, As you know, I am not a big Ubuntu user, but don't you need
> '127.0.1.1' or '127.0.0.53' in /etc/hosts to use netplan ?
No, thats not oblicated. 

You only see 127.0.1.1 if you installed the server with an DHCP ip adres. 
If you configure a static ip at install, 127.0.1.1 will be changed to the
real ip. 

127.0.0.53, is only the caching resolver, it has a few good and bad parts. 

This is a decent one to read on it. 
why use it.. 
https://developpaper.com/systemd-resolved-and-resolvctl-on-ubuntu-127-0-0-53
-nameserver/

Why not use it. 
https://archive.fosdem.org/2019/schedule/event/dns_systemd_resolved/

Personly, I don't like netplan, I don't see why use for it on a server,
everything you can set, 
can also be done in a systemd network file. ( like /etc/network/interfaces )


Now, If your using Ubuntu with desktop, then I recommend to use netplan. 
simple because that's integrated in the desktop management tools. 


So far, 

Greetz, 

Louis