Domains not resolving

[Walter Dnes]

On Thu, Oct 25, 2012 at 03:30:51PM -0400, Chris F.A. Johnson wrote
> 
>     My landlord has just switched form Teksavvy on DSL to Teksavvy on cable.
> 
>     The DSL modem, 2wire with built-in wireless, worked with no problems.
> 
>     He now has a cable modem plus a DLink DIR-815 wireless router.
> 
>     My laptop, running Mandriva 2010.1, connects with no problems.
> 
>     My desktop, running Mandriva 2010.2, connects but does not
>     resolve URLs (Firefox works fine; lynx does not). I can connect
>     (ssh, smtp, POP3, etc.) if I give a dotted quad IP address,
>     but not with a URL.

  This sounds like you're not getting a proper value in /etc/resolv.conf
I assume you used the DSL router/modem as your DNS server, and it passed
queries to Teksavvy's servers.  The cable router/modem probably has a
different IP address than the old DSL router modem, and the entry in
your /etc/resolv.conf is no longer valid.  You have 3 options...

1) Figure out the IP address of the cable router/modem, and insert that
into your /etc/resolv.conf.  Try "traceroute -n 8.8.8.8".  The "-n"
forces numeric-only mode, i.e. no name lookups.  I get...
 1  192.168.123.254  37.714 ms  37.018 ms  36.719 ms
 2  206.248.154.104  13.052 ms  13.996 ms  19.292 ms
 3  69.196.136.66  20.489 ms  22.277 ms  25.328 ms
 4  206.108.34.6  25.966 ms  28.586 ms  29.269 ms
 5  216.239.47.114  31.402 ms  32.028 ms  34.698 ms
 6  216.239.46.170  54.211 ms 209.85.255.235  43.415 ms  45.206 ms
 7  72.14.239.93  47.117 ms  46.574 ms 209.85.249.11  46.811 ms
 8  72.14.238.16  45.735 ms 72.14.238.18  45.803 ms  45.916 ms
 9  216.239.49.145  54.769 ms  53.464 ms  53.448 ms
10  8.8.8.8  43.686 ms  43.232 ms  44.828 ms

And yes, my ADSL router/modem is 192.168.123.254, the first item in the
list.  Run "traceroute -n 8.8.8.8" on your machine, and copy the first
IP address in your output to /etc/resolv.conf.

2) Insert the IP address of Teksavvy's nameservers directly into your
/etc/resolv.conf.  According to a thread on Teksavvy's forum on
dslreports.com, their DNS servers are 206.248.154.22 and 206.248.154.170.

3) Use a public nameserver like Google (8.8.8.8 and 8.8.4.4) or OpenDNS
(208.67.222.222 and 208.67.220.220

-- 
Walter Dnes <waltdnes-SLHPyeZ9y/tg9hUCZPvPmw at public.gmane.org>
I don't run "desktop environments"; I run useful applications
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