More than 4k TXT entries

[Darvin Denmian]

Hi,

Graff, thanks for you reply...

As you can see below my server is accepting DNS connections:

ACCEPT     udp  --  anywhere             anywhere            udp dpt:domain
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:domain

and the service is up and running:

# netstat -ntplu | grep -i named
tcp        0      0 XXX.XXX.XX.XXX:53           0.0.0.0:*
     LISTEN      7547/named
tcp        0      0 XXX.XXX.XX.XXX:53           0.0.0.0:*
     LISTEN      7547/named
tcp        0      0 127.0.0.1:953                        0.0.0.0:*
              LISTEN      7547/named
udp        0      0 XXX.XXX.XX.XXX:53           0.0.0.0:*
                 7547/named
udp        0      0 XXX.XXX.XX.XXX:53           0.0.0.0:*
                 7547/named

The zone file is composed of a lot of TXT records...below a small
piece of the file:

spf_10000 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"
spf_10001 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"
spf_10003 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"
spf_10004 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"
spf_10008 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"
...
spf_16416 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"
spf_16417 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"
spf_16418 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"
spf_16419 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"
spf_16420 900 IN TXT "v=spf1 ip4:XX.XX.XXX.XX/28 ip4:XX.XX.XXX.XX ?all"

I hope those informations can help you to help me :)

Regards!


On Wed, Feb 29, 2012 at 4:25 PM, Michael Graff <mgraff at isc.org> wrote:
> more than 4k will exceed the default settings for EDNS0 UDP responses.
>
> If you dig @ your server, with +tcp, do you get a reply?  If not, perhaps you are not allowing TCP connections to port 53?
>
> What error you are getting may be of help.
>
> --Michael
>
> On Feb 29, 2012, at 1:20 PM, Darvin Denmian wrote:
>
>> Hi....
>>
>> I would like to know if there is some limitation in Bind regard:
>>
>>    - Max number of TXT entries for a specific domain
>> or
>>    - Max size of a zone file
>>
>> I'm asking this because one of the domains configured in my Bind
>> server have more than 4k TXT entries and its zone file have more than
>> 400KB.
>>
>> So ....my problem is....
>>
>> When I perform a DNS query , requesting the last TXT entries that I've
>> added, I receive no answer from my Bind server.
>>
>> Do you have some ideia of what is happening?
>>
>> I hope you can help me and .....understand my Brazilian English :p .
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