[Firewall] Warnings and errors of plugin dyndns?

J1 Simón simon at j1s.es
Fri Mar 23 11:47:22 CET 2012


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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>> Arno's (Linux IPTABLES Firewall) Homepage:
>> http://rocky.eld.leidenuniv.nl
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> http://rocky.eld.leidenuniv.nl


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