[Samba] Problems with Internal DNS Samba 4

Marcio Demetrio Bacci marciobacci at gmail.com
Mon Sep 2 12:19:43 UTC 2019


Hi,



>is Bind9 running ?
Yes
netstat -lntup | grep 53
tcp        0      0 127.0.0.1:953           0.0.0.0:*               OUÇA
    13296/named
tcp        0      0 0.0.0.0:49153           0.0.0.0:*               OUÇA
    15105/samba: task[d
tcp6       0      0 :::49153                :::*                    OUÇA
    15105/samba: task[d

 /etc/init.d/bind9 status
● bind9.service - BIND Domain Name Server
   Loaded: loaded (/lib/systemd/system/bind9.service; enabled; vendor
preset: enabled)
   Active: active (running) since Mon 2019-09-02 08:28:13 -03; 3s ago
     Docs: man:named(8)
 Main PID: 13296 (named)
    Tasks: 7 (limit: 4720)
   CGroup: /system.slice/bind9.service
           └─13296 /usr/sbin/named -f -u bind -4

set 02 08:28:13 samba4-dc1 named[13296]: set up managed keys zone for view
_default, file 'managed-keys.bind'
set 02 08:28:13 samba4-dc1 named[13296]: configuring command channel from
'/etc/bind/rndc.key'
set 02 08:28:13 samba4-dc1 named[13296]: command channel listening on
127.0.0.1#953
set 02 08:28:13 samba4-dc1 named[13296]: managed-keys-zone: loaded serial 0
set 02 08:28:13 samba4-dc1 named[13296]: zone 0.in-addr.arpa/IN: loaded
serial 1
set 02 08:28:13 samba4-dc1 named[13296]: zone localhost/IN: loaded serial 2
set 02 08:28:13 samba4-dc1 named[13296]: zone 255.in-addr.arpa/IN: loaded
serial 1
set 02 08:28:13 samba4-dc1 named[13296]: zone 127.in-addr.arpa/IN: loaded
serial 1
set 02 08:28:13 samba4-dc1 named[13296]: all zones loaded
set 02 08:28:13 samba4-dc1 named[13296]: running

>Does the DC use itself as its nameserver ?
Yes

>Is Samba running ?
Yes

>Have you altered the DC smb.conf ?
Yes

cat /etc/samba/smb.conf
# Global parameters
[global]
        netbios name = SAMBA4-DC1
        realm = EMPRESA.COM.BR
        workgroup = EMPRESA
        server role = active directory domain controller
        server services = -dns
        #dns update command = /usr/sbin/samba_dnsupdate --use-samba-tool
        ldap server require strong auth = no

[netlogon]
        path = /var/lib/samba/sysvol/empresa.com.br/scripts
        read only = No

[sysvol]
        path = /var/lib/samba/sysvol
        read only = No


root at samba4-dc1:ls -lai /var/lib/samba/private/sam.ldb.d/
total 162292
920703 drwx------ 2 root root     4096 set  2 08:16 .
920705 drwxr-xr-x 7 root root     4096 set  2 08:17 ..
920726 -rw------- 1 root root 40189952 set  2 08:29
CN=CONFIGURATION,DC=EMPRESA,DC=COM,DC=BR.ldb
920725 -rw------- 1 root root 26583040 set  2 08:29
CN=SCHEMA,CN=CONFIGURATION,DC=EMPRESA,DC=COM,DC=BR.ldb
920733 -rw-rw---- 2 root bind 14692352 set  2 08:29
DC=DOMAINDNSZONES,DC=EMPRESA,DC=COM,DC=BR.ldb
920734 -rw-rw---- 2 root bind  4210688 set  2 08:29
DC=FORESTDNSZONES,DC=EMPRESA,DC=COM,DC=BR.ldb
920731 -rw------- 1 root root 79663104 set  2 08:29
DC=EMPRESA,DC=COM,DC=BR.ldb
920708 -rw-rw---- 2 root bind   831488 set  2 08:16 metadata.tdb


root at samba4-dc1:/var/lib/samba# ls -lai
/var/lib/samba/bind-dns/dns/sam.ldb.d/
total 36220
920471 drwxrwx--- 2 root bind     4096 set  2 08:16 .
919793 drwxrwx--- 3 root bind     4096 set  2 08:16 ..
920736 -rw-rw---- 1 root bind  8601600 set  2 08:16
CN=CONFIGURATION,DC=EMPRESA,DC=COM,DC=BR.ldb
920732 -rw-rw---- 1 root bind  7446528 set  2 08:16
CN=SCHEMA,CN=CONFIGURATION,DC=EMPRESA,DC=COM,DC=BR.ldb
920733 -rw-rw---- 2 root bind 14692352 set  2 08:31
DC=DOMAINDNSZONES,DC=EMPRESA,DC=COM,DC=BR.ldb
920734 -rw-rw---- 2 root bind  4210688 set  2 08:31
DC=FORESTDNSZONES,DC=EMPRESA,DC=COM,DC=BR.ldb
920601 -rw-rw---- 1 root bind  1286144 set  2 08:16
DC=EMPRESA,DC=COM,DC=BR.ldb
920708 -rw-rw---- 2 root bind   831488 set  2 08:16 metadata.tdb

Regards,

Márcio Bacci

Em seg, 2 de set de 2019 às 09:07, Rowland penny via samba <
samba at lists.samba.org> escreveu:

> On 02/09/2019 12:58, Marcio Demetrio Bacci wrote:
> > Hi,
> >
> > My DNS Service isn't working properly!
> >
> > root at samba4-dc1:~#  host -t SRV _kerberos._udp.EMPRESA.COM.BR
> > <http://udp.EMPRESA.COM.BR>
> > ;; connection timed out; no servers could be reached
> > root at samba4-dc1:~# host -t SRV _ldap._tcp.EMPRESA.COM.BR
> > <http://tcp.EMPRESA.COM.BR>
> > ;; connection timed out; no servers could be reached
> > root at samba4-dc1:~# host -t A EMPRESA.COM.BR <http://EMPRESA.COM.BR>
> > ;; connection timed out; no servers could be reached
> > root at samba4-dc1:~# host -t A proxy-server
> > ;; connection timed out; no servers could be reached
> >
> > What should I do?
> >
> is Bind9 running ?
>
> Does the DC use itself as its nameserver ?
>
> Is Samba running ?
>
> Have you altered the DC smb.conf ?
>
> Rowland
>
>
>
> --
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