NSD won't start

Hi,
I just installed MailinaBox on a new machine with Ubuntu 14.04.

Everything went ok but even if I set up glue records and changed the hostnames of domain to the newly created glue records (nslookups on glue records return the correct ip).

Trying to access my domain from a web browser doesn’t work
This webpage is not available
DNS_PROBE_FINISHED_NXDOMAIN

Looking in syslog I see

May 9 13:59:19 ubuntu kernel: [ 530.228659] init: nsd main process (2924) terminated with status 1
May 9 13:59:19 ubuntu kernel: [ 530.228672] init: nsd main process ended, respawning
May 9 13:59:19 ubuntu nsd[2941]: can’t bind udp socket: Address already in use
May 9 13:59:19 ubuntu nsd[2941]: server initialization failed, nsd could not be started
May 9 13:59:19 ubuntu kernel: [ 530.301476] init: nsd main process (2941) terminated with status 1
May 9 13:59:19 ubuntu kernel: [ 530.301489] init: nsd main process ended, respawning
May 9 13:59:19 ubuntu nsd[2958]: can’t bind udp socket: Address already in use
May 9 13:59:19 ubuntu nsd[2958]: server initialization failed, nsd could not be started
May 9 13:59:19 ubuntu kernel: [ 530.407375] init: nsd main process (2958) terminated with status 1
May 9 13:59:19 ubuntu kernel: [ 530.407390] init: nsd respawning too fast, stopped

I modified /etc/nsd/nsd.conf and commented ipv6 ip because I don’t have a public ipv6, also I disabled ipv6 system wide from sysctl but above log is the latest error I receive.

I’m out of ideas on how to fix this, can I get some help ?

Thank you

After disabling ipv6 I had run mailinabox again, it reconfigured nsd.conf without the ipv6 but still doesn’t want to run:

May 9 14:39:47 ubuntu nsd[4986]: could not perform remote control setup
May 9 14:39:47 ubuntu kernel: [ 1513.509212] init: nsd main process (4986) terminated with status 1
May 9 14:39:47 ubuntu kernel: [ 1513.509224] init: nsd main process ended, respawning
May 9 14:39:47 ubuntu nsd[5003]: can’t bind tcp socket: Cannot assign requested address
May 9 14:39:47 ubuntu nsd[5003]: cannot open control interface ::1 8952
May 9 14:39:47 ubuntu nsd[5003]: could not open remote control port
May 9 14:39:47 ubuntu nsd[5003]: could not perform remote control setup
May 9 14:39:47 ubuntu kernel: [ 1513.582976] init: nsd main process (5003) terminated with status 1
May 9 14:39:47 ubuntu kernel: [ 1513.582988] init: nsd respawning too fast, stopped

Also I disabled ufw and iptables without any luck.

I enabled ipv6 back and run mailinabox again. Seems everything worked now but unable to find out why it didn’t work the first time.