Maintained by: NLnet Labs

[Unbound-users] Unbound and Bind Views

Hayward, Bruce
Wed Oct 27 22:43:03 CEST 2010

What I have:

#        interface: at 5003

        # interface: 2001:DB8::5


        interface: at 49152

        interface: at 49152

#       interface:

        interface: at 53

        interface: at 49152


        # enable this feature to copy the source address of queries to

        # Socket options are not supported on all platforms.

        interface-automatic: yes


        # port to answer queries from

#       port: 53


What I see:

[root at wnpgmb02hbv-ns09 etc]# netstat -na |grep 49152

[root at wnpgmb02hbv-ns09 etc]#






Bruce Hayward, MTS Allstream Inc., (p) 204-958-1983 (e)
bruce.hayward at <mailto:bruce.hayward at>  


From: Arni Birgisson [mailto:arnib at] 
Sent: October 27, 2010 3:16 PM
To: Hayward, Bruce
Cc: unbound-users at
Subject: Re: [Unbound-users] Unbound and Bind Views


Hi Bruce,


I have configured a test server at Men & Mice with:

interface: at 9000


and output of netstat -na | grep 9000 

tcp        0      0   *

udp        0      0   *


Notice that UDP ports never display the "LISTEN"  state as the TCP ports


	and sees it listening (netstat -na|grep -I listen or netstat
-tnlp | grep unbound or netstat -anlp | grep unbound)


I can't quite see from your command there below, but in your grep
command is using a -i switch (lower case i for case-insensitive).


Hope this helps!


Best regards




Arni Birgisson

Professional Services
Men & Mice
Address: Noatun 17, IS-105, Reykjavik, Iceland
Phone: +354-412-1500
Email: arnib at <> 

Men & Mice
We bring control and flexibility to network management





On Oct 27, 2010, at 7:56 PM, Hayward, Bruce wrote:


Before I spend more on this (I even have Iptables firewall logs running
as well as the usual assortment)

Is there someone out there that has configured an interface in the
unbound.conf to a port other than 53? (something in the private/dynamic

Per the unbound.conf  man:
interface: <ip address[@port]>

and sees it listening (netstat -na|grep -I listen or netstat -tnlp |
grep unbound or netstat -anlp | grep unbound)




Bruce Hayward, MTS Allstream Inc., (p) 204-958-1983 (e)
bruce.hayward at 


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