[Samba] reverse dns confused

Bob of Donelson Trophy
Sat, 08 Oct 2016 13:53:31 -0000

On 2016-10-08 07:58, Rowland Penny via samba wrote:

> On Sat, 08 Oct 2016 07:50:03 -0500
> Bob of Donelson Trophy via samba <samba at lists.samba.org> wrote:
>
>> I have built a second dtdc03 and joined to my first dtdc01. Thought
>> all was well but, discovered that reverse dns is not correct on second
>> dtdc03.
>>
>> root at dtdc03:~# host dtdc03
>> dtdc03.dtshrm.dt has address 192.168.16.49
>> root at dtdc03:~# host 192.168.16.49
>> Host 49.16.168.192.in-addr.arpa. not found: 3(NXDOMAIN)
>> root at dtdc03:~# nslookup dtdc03
>> Server: 192.168.16.49
>> Address: 192.168.16.49#53
>>
>> Name: dtdc03.dtshrm.dt
>> Address: 192.168.16.49
>>
>> root at dtdc03:~# nslookup 192.168.16.49
>> Server: 192.168.16.49
>> Address: 192.168.16.49#53
>>
>> ** server can't find 49.16.168.192.in-addr.arpa: NXDOMAIN
>>
>> I tried to add the reverse zone (I may be doing this wrong but . . .)
>
> Bob, did you create the reverse zone on the first DC ?
>
> If so, you don't create it again, you just add the new DCs reverse
> record to the zone.
>
> Rowland

I'm still doing something wrong.

On first DC (dtdc01) I ran . . .  and got . . .

root at dtdc01:~# samba-tool add dc 16.168.192.in-addr.arpa 49 PTR DTDC03
Usage: samba-tool <subcommand>

Main samba administration tool.

Options:
  -h, --help       show this help message and exit

  Version Options:
    -V, --version  Display version number

Available subcommands:
  dbcheck     - Check local AD database for errors.
  delegation  - Delegation management.
  dns         - Domain Name Service (DNS) management.
  domain      - Domain management.
  drs         - Directory Replication Services (DRS) management.
  dsacl       - DS ACLs manipulation.
  fsmo        - Flexible Single Master Operations (FSMO) roles
management.
  gpo         - Group Policy Object (GPO) management.
  group       - Group management.
  ldapcmp     - Compare two ldap databases.
  ntacl       - NT ACLs manipulation.
  processes   - List processes (to aid debugging on systems without
setproctitle).
  rodc        - Read-Only Domain Controller (RODC) management.
  sites       - Sites management.
  spn         - Service Principal Name (SPN) management.
  testparm    - Syntax check the configuration file.
  time        - Retrieve the time on a server.
  user        - User management.
  vampire     - Join and synchronise a remote AD domain to the local
server.
For more help on a specific subcommand, please type: samba-tool
<subcommand> (-h|--help)

Obviously it is telling me that I am doing something wrong . . . I have
read too much and I'm confused.

On dtdc01 I ran the following:

root at dtdc01:~# nslookup dtdc01
Server:        192.168.16.49
Address:    192.168.16.49#53

Name:    dtdc01.dtshrm.dt
Address: 192.168.16.51

root at dtdc01:~# nslookup dtdc03
Server:        192.168.16.49
Address:    192.168.16.49#53

Name:    dtdc03.dtshrm.dt
Address: 192.168.16.49

root at dtdc01:~# nslookup 192.168.16.51
Server:        192.168.16.49
Address:    192.168.16.49#53

51.16.168.192.in-addr.arpa    name = dtdc01.dtshrm.dt.

root at dtdc01:~# nslookup 192.168.16.49
Server:        192.168.16.49
Address:    192.168.16.49#53

** server can't find 49.16.168.192.in-addr.arpa.: NXDOMAIN

In my mind I am being told to add the second DC (dtdc03) reverse dns to
dtdc01 . . . what am I doing wrong? Am I miss understanding the message?


--
_______________________________

Bob Wooden of Donelson Trophy