DNS problems this morning -

[Bob Goodwin - Zuni, Virginia, USA]

On 11/11/12 12:48, Reindl Harald wrote:
> Am 11.11.2012 18:44, schrieb lee:
>> > You can specify several name servers to use, so you would make your
>> > computer which is running named the primary name server and another one
>> > the secondary one.  When the primary name server isn't reachable, the
>> > clients are supposed to use the secondary one instead.
> in theory
>
> in the real life you have no control of the order in
> whci namesvers from /etc/resolv.conf are used and mostly
> theay are all get the request and the faster response is used
>
> mixinig different dns-views leads to rendamloy get different
> results and if your ISP's namesevrer is a crap with unstrustable
> responses for NXDOMAIn you are playing games with your network
>
    It looks like it is random ... I took all the dns server addresses
    out of the router leaving only 127.0.0.1. That leaves my local dns
    plus whatever Viasat uses which is terribly slow today. I never saw
    anything like this before.

    Some sites have a bunch of look ups, like "weather.com" which I have
    been testing with because it does a lot of them. It is obvious when
    it hits the ISP dns server and sits there for 20 - 30 seconds, maybe
    more worst case, the local is instantaneous. I can't be certain but
    that's how it looks to me based on what you have told me ...

    I rebooted this computer just to be safe and shows resolv.conf:

        [bobg at box7 ~]$ cat /etc/resolv.conf
        # Generated by NetworkManager
        nameserver 192.168.1.1
        nameserver 127.0.0.1
        nameserver 184.63.128.68

    I guess that's ok? The last one is the ISP dns, or at least I don't
    think I have that entered anywhere. 192.168.1.1 is presently a
    Buffalo wireless router running dd-wrt. It is the dhcp server.

    A call to Wildblue tech support produces a warning of long wait
    times. I guess there are others complaining. I wont learn anything
    there today except that they are probably swamped with complaints.

    Thanks,

    Bob


    -- 
    http://www.qrz.com/db/W2BOD

    box7