[Samba] Member join, dns issues

Greg Sloop <gregs@sloop.net> gregs at sloop.net
Thu Feb 24 17:54:20 UTC 2022


How important is the reverse, PTR record?

The zones for the IP blocks aren't "owned" by the Samba DC, but by our
internal BIND/DHCP servers. Adding a bunch of reverses for IP's will be
additional hassle. If they're not critical, I'd probably live without them
for now, at least.

On Wed, Feb 23, 2022 at 9:06 AM Patrick Goetz via samba <
samba at lists.samba.org> wrote:

>
>
> On 2/23/22 03:36, Rowland Penny via samba wrote:
> > On Tue, 2022-02-22 at 17:32 -0800, Greg Sloop <gregs--- via samba
> > wrote:
> >> Joining a member server "succeeds" but also gives this DNS error.
> >> ---
> >> # net ads join -U administrator
> >> Password for [AD\administrator]:
> >> Using short domain name -- AD
> >> Joined 'ABC-1' to dns domain 'ad.xyz.local'
> >
> > I do hope that the '.local' is just sanitisation, or that you have
> > turned off avahi.
> >
> >> DNS Update for abc-1.ad.xyz.local failed: ERROR_DNS_UPDATE_FAILED
> >> DNS update failed: NT_STATUS_UNSUCCESSFUL
> >
> > This generally occurs if your client does not resolve to a FQDN before
> > the join.
> >
>
> Reminder that I had exactly the same problem trying to join an Arch
> Linux system to my domain, and the client definitely resolved to a FQDN
> via /etc/hosts:
>
>    192.168.1.84 erap-gnome.ea.linuxcs.com  erap-gnome
>
>
> The work around is to create the DNS record using samba-tool on the DC:
>
>     # samba-tool dns add samba-dc ea.linuxcs.com erap-gnome A
> 192.168.1.84 -U administrator
>
>   # samba-tool dns add samba-dc 1.168.192.in-addr.arpa 84 PTR
> erap-gnome.ea.linuxcs.com -U administrator
>
>
>
> > Rowland
> >
> >
> >
> >
>
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