Re: Setting up NS2
- From: "Brian" <briant1@xxxxxxx>
- Date: Sun, 10 Sep 2006 13:51:45 -0500
WOW! Very well put - Thank you. After investigating I realized that I had
in fact added a host ns2 to the zone, however the IP entry was "Unknown" in
the name servers tab so I manually put in my public IP (Registered with the
registrar of the domain for NS2. I dont know if this is all i've missed
however it led me to discover the "Unknown" IP entry. I will give this
change some time and see if I sill get "Host not found" Thanks.
"Kevin D. Goodknecht Sr. [MVP]" <admin@xxxxxxxxxxxxxx> wrote in message
news:uSAEieP1GHA.3476@xxxxxxxxxxxxxxxxxxxxxxx
Brian wrote:
Thank you for your response. I can ping the static IP successfully
however I recieve "Cannot find host" when I ping the FQDN
NS2.nameserver.com. I do not believe my DNS is being updated
throughout the inet. Everything works locally but will not resolve
externally. If I put in the IP in explorer in an external computer
the default test website I created resolves correctly. The hosted
domains I have on the server do not resolve and will not until I get
the NS2 resolving. IP is resolving FQDN is not and it seems like
the records of my DNS server are not propogating. Do I have to set
the DNS server to "push" the records out or does that happen
automatically. I am running Webserver 2003. Thanks
If you are going to try hosting a public DNS server on your local machine,
you should post the actual name.
Name servers do not push records out to anything, they just sit there and
wait for someone or another DNS server, to come asking for a name to
resolve. The closest a name server comes to pushing is when it Notifies
servers with Secondary zones that there is a newer version of the zone and
it needs to ask for a zone transfer. Do not confuse a DNS Server with a
Secondary zone with an Alternate DNS server, they are two totally
different
things.
If a Server has a Secondary zone, it is its responsibly to go ask the
Master
(Primary) for a zone transfer, the primary's responsibility ends with
deciding what servers can get a zone transfer (full copy of the zone), and
which DNS servers can only get the record or records it asks for
specifically by name and type.
If you host a public name server, the first thing you must do is get the
name server's name and IP address listed at the parent servers for a
domain.
Example, say you own brian.com, and you want to host a name server
ns1.brian.com, before you name server can host ANY public domain, even
brian.com, the .com (parent) servers must know the name and IP of
ns1.brian.com.
How do you do this?
The answer varies from Registrar to Registrar, (the company that
registered
you as the owner brian.com). Some make it very easy and have a link on
their
website for adding DNS Host names, this is where you add NS1.brian.com to
the parent (.com) servers.
Even after you do this, your DNS server must be able to resolve
ns1.brian.com, do this by creating a host named NS1, in the brian.com
zone,
then you have to add NS1.brian.com to the name servers tab as a name
server.
You must also add NS records for all DNS servers that host a brian.com
zone
and are listed on the public record for brian.com.
As for how long it take for this to "propagate" depends on if a DNS server
has been asked to resolve ns1.brian.com before ns1.brian.com existed and
how
much TTL is left to expire on that server. DNS servers that don't have the
brian.com zone usually cache negative and positive answers, until the
answers have expired from cache, that DNS server will answer from what it
has in cache. There is no way to hurry that process up, the time depends
entirely on the remaining TTL of its cached answer. The remaining TTL
depends on the TTL of the record on the server that holds authority, and
the
Maximum Cached TTL of the server the record is in cache on. The default
Maximum cache TTL for MS DNS is one day, the default Maximum Cached TTL
for
BIND DNS is seven days.
Negative answers are cached, too. The default maximum negative cached TTL
on
MS DNS is 1 hour, (IIRC) I'm not sure what the maximum negative cached TTL
on BIND is, but it probably somewhere in line with MS DNS.
--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps
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- References:
- Setting up NS2
- From: Brian
- Re: Setting up NS2
- From: Jorge Silva
- Re: Setting up NS2
- From: Brian
- Re: Setting up NS2
- From: Kevin D. Goodknecht Sr. [MVP]
- Setting up NS2
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