[Firewall] Warnings and errors of plugin dyndns?

Arno van Amersfoort arnova at rocky.eld.leidenuniv.nl
Fri Mar 23 11:53:55 CET 2012


/usr/local/share/arno-iptables-firewall/plugins/dyndns-host-open-helper

On 23-Mar-12 11:47, J1 Simón wrote:
> No, I haven't installed a mail server. Where is the cron-helper script?
>
> El vie 23 mar 2012 11:28:43 CET, Arno van Amersfoort escribió:
>> Apparently cron is unable to deliver any stderr output to eg. the root
>> user and that's why it's ending up in deadletter (no MTA installed?).
>> These errors/warnings happen occasionaly due to glitches in your
>> network and/or dns servers. You can safely ignore them. I think you
>> can only disable them when hacking the cron-helper script, but I'd
>> simply ignore it if I were you.
>>
>> a.
>>
>> On 20-Mar-12 18:12, Simón wrote:
>>> Hi,
>>> I have installed the last stable version of Arno's Firewall and I have
>>> activated the dyndns plugin. I have detected that periodically it
>>> appears one file with name "dead.letter" in the root's home folder with
>>> the next content:
>>>
>>> ** ERROR(9): DNS server connection failed! Assuming server dead for
>>> this session. **
>>> ** WARNING(9): Unresolvable host "xxx2.dyndns.org". Re-using old IP
>>> (99.99.999.999)! **
>>> ** WARNING: Not quering DNS server since it is considered dead for
>>> this session! **
>>> ** WARNING(9): Unresolvable host "xxx3.dyndns.org". Re-using old IP
>>> (99.99.999.999)! **
>>> ** WARNING: Not quering DNS server since it is considered dead for
>>> this session! **
>>> ** WARNING(9): Unresolvable host "xxx1.dyndns.org". Re-using old IP
>>> (99.99.999.999)! **
>>>
>>>
>>> Are these messages sent by Arno's Firewall? Can I disable it?
>>> Regards.
>>>
>>>
>>> _______________________________________________
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>>> Firewall at rocky.eld.leidenuniv.nl
>>> http://rocky.eld.leidenuniv.nl/mailman/listinfo/firewall
>>> Arno's (Linux IPTABLES Firewall) Homepage:
>>> http://rocky.eld.leidenuniv.nl
>> _______________________________________________
>> Firewall mailing list
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>> Arno's (Linux IPTABLES Firewall) Homepage:
>> http://rocky.eld.leidenuniv.nl
> _______________________________________________
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> http://rocky.eld.leidenuniv.nl


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