Connection refused when using nlede01.sixxs.net (nscache.eu.sixxs.net) as DNS forwarder
Shadow Hawkins on Saturday, 13 August 2011 00:33:26
Hi,
I'm using my own DNS server and have put nlede01.sixxs.net as forwarder in my named.conf.options file like below
forwarders {
62.179.104.196;
#213.46.228.196;
2001:7b8:3:4f:202:b3ff:fe46:bec;
2001:b18:0:1000:2e0:81ff:fe61:ae0d;
2001:14b8:0:3007::6;
2001:1418:10:2::2;
2001:16d8:aaaa:3::2;
2001:41e0:ff00::5;
};
However when using above I see frequently errors in my syslog file:
syslog.6.gz:Aug 6 10:25:25 obelix named[31467]: error (connection refused) resolving 'north-america.pool.ntp.org/A/IN': 2001:7b8:3:4f:202:b3ff:fe46:bec#53
syslog.6.gz:Aug 6 10:58:37 obelix named[31467]: error (connection refused) resolving 'waprmb.rabobank.nl/A/IN': 2001:7b8:3:4f:202:b3ff:fe46:bec#53
syslog.6.gz:Aug 6 14:25:25 obelix named[31467]: error (connection refused) resolving 's3-1-w.amazonaws.com/AAAA/IN': 2001:7b8:3:4f:202:b3ff:fe46:bec#53
syslog.6.gz:Aug 6 14:30:05 obelix named[31467]: error (connection refused) resolving 'o-o.preferred.ams03s07.v20.lscache6.c.youtube.com/AAAA/IN': 2001:7b8:3:4f:202:b3ff:fe46:bec#53
Is this because of high load on 2001:7b8:3:4f:202:b3ff:fe46:bec or is it in the link from me to the DNS server.
I connect to the nlede01 PoP.
Here you can find a complete log with errors.
Thanks in advance for your replies.
Epco
Connection refused when using nlede01.sixxs.net (nscache.eu.sixxs.net) as DNS forwarder
Jeroen Massar on Saturday, 13 August 2011 10:58:49
What is the source address you are using? This, as those DNSCaches only respond to queries from addresses in the SixXS prefixes.
Connection refused when using nlede01.sixxs.net (nscache.eu.sixxs.net) as DNS forwarder
Shadow Hawkins on Sunday, 14 August 2011 15:07:56
Hi,
Good point.
I assume my IPv6 address, but I will run a tcpdump for a day to see which ip does the request.
Regards,
Epco
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