Pdns: PowerDNS could work or not when disable ipv6

[hxzhaoyf]

hi, I get some problem about IPV6. My OS is CentOS release 6.5 (Final), and disable IPV6. My PowerDNS version is pdns-4.0.1-1pdns.
when starting pdns with :

service pdns monitor

the output is:

Oct 14 16:15:58 Reading random entropy from '/dev/urandom'
Oct 14 16:15:58 Loading '/usr/lib64/pdns/libgmysqlbackend.so'
Oct 14 16:15:58 [gmysqlbackend] This is the gmysql backend version 4.0.1 (Jul 29 2016 14:57:20) reporting
Oct 14 16:15:58 This is a standalone pdns
Oct 14 16:15:58 UDP server bound to 0.0.0.0:53
Oct 14 16:15:58 IPv6 Address Family is not supported - skipping UDPv6 bind
Oct 14 16:15:58 TCP server bound to 0.0.0.0:53
Oct 14 16:15:58 Fatal error: Unable to acquire TCPv6 socket: Address family not supported by protocol

I can't find the config option about disable ipv6 or something else, is any suggestion? Thanks!

[zeha]

In general, disabling IPv6 on Linux is not very well supported.

For pdns, you must remove all those ipv6 listening sockets, e.g. local-address6, ...

[hxzhaoyf]

@zeha thanks for your relay.
My system must be disable ipv6 so I have to try with other method.

#################################
# local-address Local IP addresses to which we bind
#
# local-address=0.0.0.0

#################################
# local-address-nonexist-fail   Fail to start if one or more of the local-address's do not exist on this server
#
# local-address-nonexist-fail=yes

#################################
# local-ipv6    Local IP address to which we bind
#
# local-ipv6=::

#################################
# local-ipv6-nonexist-fail      Fail to start if one or more of the local-ipv6 addresses do not exist on this server
#
local-ipv6-nonexist-fail=yes
...
#################################
# do-ipv6-additional-processing Do AAAA additional processing
#
# do-ipv6-additional-processing=yes

the docs about cofig file setting say:

For boolean settings, specifying the name of the setting without a value means yes.

but how should I set the option like "local-ipv6=::"? Just commend it?
Sorry for my poor understand about pdns and dns.

[hxzhaoyf]

I delete everything about '::', and change the

# local-ipv6=::  

with

 local-ipv6=

and it works.

[pieterlexis]

local-ipv6= should disable this setting

[hxzhaoyf]

@pieterlexis thanks, I have tried your advice setting and it works.

[istiyakaminsanto]

I delete everything about '::', and change the

# local-ipv6=::  

with

 local-ipv6=

and it works.

It works for me <3