DNS redundancy and two ISPs
Joe Raviele
jraviele at gmail.com
Tue Apr 12 19:02:08 UTC 2005
Your problem is not in your config, its at your registry. Here is what
it has listed for you:
Domain servers in listed order:
NS2.GDDIRECT.NET 216.237.201.46
NS1.GDDIRECT.NET 24.199.173.58
If you look at your IP address for NS2 and whois is for NS2, they are
different.
- Joe
On Apr 11, 2005 10:45 PM, Bob Little <rlittle at graphikdimensions.com> wrote:
> Hi,
>
> It's apparent to me that I do not understand the myriad of options,
> features and concepts of DNS configuration. Maybe I don't really have a
> DNS issue here - I don't know.
>
> Background -
> I have two seperate DNS servers:
> ns1.gddirect.net is on a Road Runner network: 24.199.173.56/255.255.255.248
> ns2.gddirect.net is on a DSL network: 216.237.238.82/255.255.255.248
>
> The idea was to have ns1 and the Road Runner be our default gateway, and
> in the event of a server or ISP failure, ns2 and the DSL connection
> would become the default gateway via some ethernet card re-aliasing.
>
> But what I'm finding is that when the primary server - ns1/Road Runner
> is offline/crashed/shutdown, my domain gddirect.net cannot be reached at
> all - even though ns2 is up and running.
>
> I know I have some configuration issue, but I don't know what topics in
> TFM to R up on.
>
> Sorry if I haven't provided enough info, it's been a *very* long day.
>
> **********************************************
> NS1's zone file:
> $TTL 3600
> gddirect.net. IN SOA ns1.gddirect.net. rlittle (
> 2005041105 ; serial
> 3600 ; refresh
> 3600 ; retry
> 604800 ; expire
> 3600 ; ttl
> )
>
> @ IN NS ns1.gddirect.net.
> @ IN NS ns2.gddirect.net.
>
> @ IN MX 10 mx1.gddirect.net.
> @ IN MX 30 mx2.gddirect.net.
>
> @ IN A 24.199.173.58
> @ IN A 216.237.238.82
>
> mx1.gddirect.net. IN A 24.199.173.58
> mx2.gddirect.net. IN A 216.237.238.82
>
> ns1 IN A 24.199.173.58
> ns2 IN A 216.237.238.82
>
> ********************************************
> NS2's zone file:
> $TTL 3600
> gddirect.net. IN SOA ns2.gddirect.net. rlittle (
> 2005041105 ; serial
> 3600 ; refresh
> 3600 ; retry
> 604800 ; expire
> 3600 ; ttl
> )
>
> @ IN NS ns2.gddirect.net.
> @ IN NS ns1.gddirect.net.
>
> @ IN MX 10 mx2.gddirect.net.
> @ IN MX 30 mx1.gddirect.net.
>
> @ IN A 216.237.238.82
> @ IN A 24.199.173.58
>
> mx2.gddirect.net. IN A 216.237.238.82
> mx1.gddirect.net. IN A 24.199.173.58
>
> ns2 IN A 216.237.238.82
> ns1 IN A 24.199.173.58
>
> *******************************************
>
> Any help would be greatly appreciated.
>
> Bob Little
> Graphik Dimensions, Ltd.
> High Point, NC
>
>
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