DNS check broking sometimes

Ronan Lucio ronan at melim.com.br
Mon Dec 17 18:37:38 UTC 2001


Hi Pete,

Could you please try it again?
I executed a traceroute and it returned ok to me, perhaps
the link had get down in that moment.

1  gw.REGISTRO.BR (143.108.23.1)  0.238 ms  0.239 ms  0.207 ms
~     0.228 ms
 2  ni800-1.ansp.br (143.108.0.1)  0.725 ms  0.641 ms  0.647 ms
~     0.671 ms
 3  brasiltelecom.ix.spo.ansp.br (200.136.34.26)  0.665 ms  0.583 ms  0.708
ms   ~     0.652 ms
 4  200.199.193.197 (200.199.193.197)  25.562 ms  25.842 ms  25.913 ms
~    25.772 ms
 5  200.199.193.130 (200.199.193.130)  25.551 ms  25.671 ms  25.343 ms
~    25.522 ms
 6  200.215.75.105 (200.215.75.105)  71.954 ms  71.984 ms  71.522 ms
~    71.820 ms
 7  BrT-f0-0-0.fns301.telesc.net.br (200.215.1.2)
    72.213 ms  72.478 ms  80.943 ms
~    75.211 ms
 8  200.180.13.30 (200.180.13.30)  87.302 ms  76.646 ms  76.329 ms
~    80.092 ms
 9  BrT-s-0-bcu300-iai300.telesc.net.br (200.215.76.246)
    98.198 ms  80.269 ms  77.938 ms
~    85.468 ms
10  BrT-c-s-1-bcu300.telesc.net.br (200.215.76.254)
    86.937 ms  79.191 ms  82.991 ms
~    83.040 ms
11  barrasul.melim.com.br (200.215.108.199)  87.173 ms  82.994 ms  84.662 ms
~    84.943 ms
12  zikeli.com.br (200.215.107.234)  222.625 ms  200.037 ms  197.835 ms
~   206.832 ms

Thank´s
Ronan


>
> * Ronan Lucio <ronan at melim.com.br> said, on [011217 08:20]:
> >
> > Hi All,
> >
> > At this moment I´m having such problem in a client:
> >
> > Look this:
> >
> > $ dig @200.215.111.234 zikeli.com.br
> > ; <<>> DiG 8.3 <<>> @200.215.111.234 zikeli.com.br
> > ; (1 server found)
> > ;; res options: init recurs defnam dnsrch
> > ;; res_nsend to server 200.215.111.234: Operation timed out
> >
> > But, if I execute a host -a, the domain seems to working fine:
> >
> Looks like  your upstream provider is having routing issues:
>
> traceroute to 200.215.111.234 (200.215.111.234), 64 hops max, 40 byte
packets
>
> [ snip ]
>
> 21  * BrT-A0-1-1-fns-core.telesc.net.br (200.203.180.250)  324.772 ms
340.802 ms
> 22  BrT-f0-0-0.fns301.telesc.net.br (200.215.1.2)  385.548 ms  363.938 ms
333.629 ms
> 23  200.180.13.30 (200.180.13.30)  338.353 ms  331.498 ms  334.215 ms
> 24  BrT-c-s-1-3-iai300.telesc.net.br (200.215.76.50)  356.880 ms 334.862
ms  370.363 ms
> 25  BrT-s-1-3-iai300.telesc.net.br (200.215.76.49)  331.953 ms  332.322 ms
360.185 ms
> 26  BrT-c-s-1-3-iai300.telesc.net.br (200.215.76.50)  362.106 ms 360.324
ms  378.625 ms
> 27  BrT-s-1-3-iai300.telesc.net.br (200.215.76.49)  340.842 ms  328.256 ms
346.667 ms
> 28  BrT-c-s-1-3-iai300.telesc.net.br (200.215.76.50)  378.552 ms 445.743
ms *
> 29  BrT-s-1-3-iai300.telesc.net.br (200.215.76.49)  345.921 ms  396.747 ms
344.598 ms
>
> My guess is that you have some other name server listed in resolv.conf,
> and this is why your 'host -a' worked.
>
> --Pete
>



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