Page 1 of 1
VERY frequent DNS-failures for TPF
Posted: Tue Aug 24, 2010 10:45 am
by RealBlackStuff
Almost daily now I have problems with reaching TPF.
These outings last up to several hours sometimes!
Maybe this error message may help to trace the cause:
Code: Select all
OpenDNS Guide
Hmm, forum.thinkpads.com isn't loading right now.
The computers that run forum.thinkpads.com are having some trouble. Usually this is just a temporary problem, so you might want to try again in a few minutes.
Want more detail? See which nameservers are failing.
Nameserver trace for forum.thinkpads.com:
* Looking for who is responsible for root zone and followed c.root-servers.net.
* Looking for who is responsible for com and followed i.gtld-servers.net.
* Looking for who is responsible for thinkpads.com and followed ns2.imwebd.com.
Nameservers for forum.thinkpads.com:
* ns1.imwebd.com
* ns2.imwebd.com returned (NORECORDS)
Re: VERY frequent DNS-failures for TPF
Posted: Tue Aug 24, 2010 11:00 am
by yak
I don't believe this is a problem with TPF server, the forum works without any hiccups here.
Re: VERY frequent DNS-failures for TPF
Posted: Tue Aug 24, 2010 12:43 pm
by Neil
I've come up against the DNS error several times recently as well. I don't recall the outages lasting for hours, but they very well could as it's usually hours before I will check back again.
Re: VERY frequent DNS-failures for TPF
Posted: Tue Aug 24, 2010 9:09 pm
by ThinkRob
Don't bother with OpenDNS. There's no good reason to use them over public resolvers like 4.2.2.2 - 4.2.2.6
Re: VERY frequent DNS-failures for TPF
Posted: Wed Aug 25, 2010 7:08 am
by RealBlackStuff
I have removed OpenDNS and replaced it with: obtain automatically...
See if that improves things.
Re: VERY frequent DNS-failures for TPF
Posted: Wed Aug 25, 2010 11:18 am
by rkawakami
ThinkRob wrote:Don't bother with OpenDNS.
It's what I using last night when I also received the OpenDNS page about TPF not being accessible. All of the other sites I went to at the same time were working so I'm sure it was something to do with this site's servers. The "outage" lasted only a few minutes around 11pm (PDT).
Re: VERY frequent DNS-failures for TPF
Posted: Wed Aug 25, 2010 6:42 pm
by ThinkRob
I have yet to find a problem with the 4.2.2.1 - 4.2.2.6 range. They're anycast, so they'll likely be quite fast (often < 50ms) and they don't do any of the filtering or advertising tricks that OpenDNS does.
Re: VERY frequent DNS-failures for TPF
Posted: Wed Aug 25, 2010 9:01 pm
by bill bolton
RealBlackStuff wrote:Almost daily now I have problems with reaching TPF.
These outings last up to several hours sometimes!
You might want to use the
Down for everyone or just me website to see if any problem is widespread or specific to your particular Internet access arrangements.
Cheers,
Bill B.
Re: VERY frequent DNS-failures for TPF
Posted: Thu Aug 26, 2010 1:00 am
by Mike Blake
ThinkRob wrote:I have yet to find a problem with the 4.2.2.1 - 4.2.2.6 range. They're anycast, so they'll likely be quite fast (often < 50ms) and they don't do any of the filtering or advertising tricks that OpenDNS does.
Interesting! I was just reading that OpenDNS uses Anycast themselves.
Re: VERY frequent DNS-failures for TPF
Posted: Thu Aug 26, 2010 9:23 am
by ThinkRob
Mike Blake wrote:Interesting! I was just reading that OpenDNS uses Anycast themselves.
They do indeed. They also return advertising-filled pages instead of NXDOMAIN errors, break the DNS specs, and even have (at times) tampered with results for Google domains, hence my strong dislike of them.