[Samba] Samba AD with multiple DC and multiple NICs

[L.P.H. van Belle]

I suggest, research systemd-networkd 
Mainly. Section [Networking] optional Route
https://www.freedesktop.org/software/systemd/man/systemd.network.html

Setup the resolving per interface and your problem is solved.
But, do note, an AD-DC only has 1 real hostname. 
So setting this up  can be done but before you install samba you must be sure
all resolving and works as expected. 

Only configure 1 hostname in /etc/hosts 
Any other one should come out the DNS. 

I have more info on this also with the vpn part but i dont have the time 
write it out atm. (sorry) 


Greetz, 

Louis


> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces at lists.samba.org] Namens 
> Stefano Vargiu via samba
> Verzonden: woensdag 21 oktober 2020 11:59
> Aan: samba at lists.samba.org
> Onderwerp: Re: [Samba] Samba AD with multiple DC and multiple NICs
> 
> >  they can only have one hostname, so which Ipaddress do you 
> link to that?
> 
> Both IPs? The requirement of a DC having only one hostname 
> doesn't rule out
> the option to let it be resolved to multiple IPs (which on 
> the other hand
> samba does automatically when binding it to multiple interfaces).
> 
> > What you could is, use one IP and then use a CNAME for the other IP
> Sorry, again I don't get it. Why a CNAME?
> How can I associate the second IP to a CNAME record?
> 
> With the configuration you are suggesting, are you implying 
> that I should
> only bind samba to one interface, or I can keep two interfaces in the
> "interfaces" parameter?
> 
> 
> Il giorno mer 21 ott 2020 alle ore 10:06 Rowland penny via samba <
> samba at lists.samba.org> ha scritto:
> 
> > On 20/10/2020 22:09, Stefano Vargiu via samba wrote:
> > > I didn't know the concept of site in AD: thank you for 
> pointing that out
> > to
> > > me, I'll read about it.
> > > I'm also going to avoid the same subnets on the two 
> sites, but honestly
> > > I'll try to keep the multi-homed configuration because I 
> always used it
> > (at
> > > least in single master configurations), always worked and 
> I never had
> > > problems with it: I think it's enough that all the IPs of 
> the domain
> > > controller are reachable (through appropriate routing) 
> from any subnets
> > > served by it.
> > >
> > > Thank you
> > > Stefano
> > >
> > You can do as you wish, but I will say it again, just in 
> case you missed
> > it, Active Directory Domain Controllers do not like being being
> > multi-homed, they can only have one hostname, so which 
> Ipaddress do you
> > link to that ? What you could is, use one IP and then use a 
> CNAME for
> > the other IP.
> >
> > Rowland
> >
> >
> >
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