[Samba] DNS listens to ::1

[Yakov Revyakin]

Hello,
I am trying to make alive a Samba domain (let's say domain.name) made by
another man.
I have the next for nslookup on the dc

ubuntu at dc01:~$ nslookup domain.name
Server:         ::1
Address:        ::1#53

Name:   domain.name
Address: 172.27.1.98

Could you explain to me what "::1", "::1:53" mean? Do I need to fix that?

My /etc/hosts has among others:

::1     ip6-localhost   ip6-loopback
172.27.1.98 dc01 dc01.tehama.room

Also I tried the following options in smb.conf
interfaces = 172.27.1.98
bind interfaces only = yes

After this, nslookup stops working - timeout. Samba log shows after samba
restart:
dnsupdate_nameupdate_done: Failed DNS update with exit code 110

cat /etc/resolv.conf
172.27.1.98
search tehama.room

Thanks