DDNS error

Hi,

when i try to update my records with ddns i receive this message in
/var/log/messages:

client 10.215.6.115#1171: updating zone 'domain.com/IN': update
unsuccessful: host.domain.com/A: 'RRset exists (value dependent)'
prerequisite not satisfied (NXRRSET)

i'm not able to found the problem.
Can someone help me to resolv this problem?

Thanks.

J.kG wrote:
> Hi,
>
> when i try to update my records with ddns i receive this message in
> /var/log/messages:
>
> client 10.215.6.115#1171: updating zone 'domain.com/IN': update
> unsuccessful: host.domain.com/A: 'RRset exists (value dependent)'
> prerequisite not satisfied (NXRRSET)
>
> i'm not able to found the problem.
> Can someone help me to resolv this problem?

Delete the record first before adding it.

What are you using to update via DDNS?

Chris Cox ha scritto:
>
>
> Delete the record first before adding it.
>
> What are you using to update via DDNS?

No, the record does not appear in the zone files.
I use dhcp and when i receive ip address on my client, i receive this
message on server log.

J.kG wrote:
> Chris Cox ha scritto:
>>
>>
>> Delete the record first before adding it.
>>
>> What are you using to update via DDNS?
>
> No, the record does not appear in the zone files.
> I use dhcp and when i receive ip address on my client, i receive this
> message on server log.
>

Is the TXT record still present? You'll need that to go away too.

Chris Cox ha scritto:
>
> Is the TXT record still present?

What is TXT record?
Where i found it?

> You'll need that to go away too.

I connect ethernet cable on my client and dhcp assign it an ip address,
but does not register A record in primary zone files.
In my /var/named/chroot/var/named directory i found
ipaddress.in-addr-arpa.zone.jnl (reverse) file only.
If i go in my log file i found that error.

Thanks for help and sorry for eventual errors.

J.kG wrote:
> Chris Cox ha scritto:
>>
>> Is the TXT record still present?
>
> What is TXT record?
> Where i found it?

host -t txt host.domain.com

It's the TSIG signed entry representing the interim update
style used by ISC's dhcp program.

I'm not saying this is the problem. In general, the "right"
thing should happen anyhow. But since I don't know the
history or context, it's possible you are in an improper
state of some sort.

Of course, I may just be way off the mark.

>
>> You'll need that to go away too.
>
> I connect ethernet cable on my client and dhcp assign it an ip address,
> but does not register A record in primary zone files.
> In my /var/named/chroot/var/named directory i found
> ipaddress.in-addr-arpa.zone.jnl (reverse) file only.
> If i go in my log file i found that error.
>
> Thanks for help and sorry for eventual errors.

Is this a SUSE system? If so, you may want to check
your AppArmor settings. By default, it may not be allowing
updates to the zone files. There's a wizard option that
should automatically detect the problem and offer a correction.

Chris Cox ha scritto:
>
> host -t txt host.domain.com
>
> It's the TSIG signed entry representing the interim update
> style used by ISC's dhcp program.
>

Where i execute that command?
Btw, i use rndckey for dynamic updates by dhcp...

> Is this a SUSE system? If so, you may want to check
> your AppArmor settings. By default, it may not be allowing
> updates to the zone files. There's a wizard option that
> should automatically detect the problem and offer a correction.

No, im using CentOS.

J.kG wrote:
> Chris Cox ha scritto:
>>
>> host -t txt host.domain.com
>>
>> It's the TSIG signed entry representing the interim update
>> style used by ISC's dhcp program.
>>
>
> Where i execute that command?
> Btw, i use rndckey for dynamic updates by dhcp...


You should have a command called "host" though that
can be used to make DNS queries. Doing just a lookup
on an explicit entry can be done from any client that
can use the DNS for queries.

>
>> Is this a SUSE system? If so, you may want to check
>> your AppArmor settings. By default, it may not be allowing
>> updates to the zone files. There's a wizard option that
>> should automatically detect the problem and offer a correction.
>
> No, im using CentOS.

Maybe SELinux then?

Chris Cox ha scritto:
>
> You should have a command called "host" though that
> can be used to make DNS queries. Doing just a lookup
> on an explicit entry can be done from any client that
> can use the DNS for queries.
>

Ok, ive started dhcpd and dns services and ive received the same error.
Named daemon only creates reversezone.jnl file.

Btw, ive launched host -t txt hostname.domain.com command and ive
received this message:
Host hostname.domain.com not found: 3(NXDOMAIN)

I think because dhcpd does not create direct.zone.jnl file...
If i launch host -t txt ipaddress i receive the following message:
ipaddress.in-addr.arpa domain name pointer hostname.domain.com


> Maybe SELinux then?

No, ive disabled that policy.

J.kG ha scritto:
>
> Ok, ive started dhcpd and dns services and ive received the same error.
> Named daemon only creates reversezone.jnl file.
>

Update:
Ive launched ipconfig /release command on my Xp and removed primary dns
suffix on it.
After the restart all seems works fine... dhcp daemon creates
direct.zone.jnl and reverse.zone.jnl files.

If i add primary dns suffix on my client, after restart, i receive that
error and dhcp seems not able to create direct jnl zone file...

Why this?

Bye & thanks.