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Old 02-17-2011, 12:46 AM   #1
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Dns zone query

Hi all.

My apologies if this query is not apropriate for this forum. Kindly let me know and i will surely be careful in future.

I just want to confirm my concept. We have around 7 top level domains like com, edu, org etc. Then we have country codes like pk (for Pakistan). Suppose if i have the following address

Now edu is basically the top level domain, over here, does it mean that edu is the sub domain of pk ? what i really want to ask is, the above edu is different from the tpld edu domain right ?
Old 02-17-2011, 01:17 AM   #2
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Usually top level domain is abbreviated TLD, but that's not important. You are correct that a TLD can be a country code or one of select list.
A lot (most?) academic institutions tend to create a sub-domain under their ctry code, because it makes sense ie indicates to people where they are based and the likely lang of the website in qn.
Most do not have external students in other countries.
Depending on Registrar's rules/checks(!) you can have almost any TLD name you want ...
For sub-domains, the TLD owner would have to agree as well.
Old 02-17-2011, 04:22 AM   #3
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No sir, let me explain what i want to ask.

I am reading DNS and bind 5th edition. In this book they told how to read the FQDN. Suppose if i am given this name

Then according to my understanding the following shall be the path

""(null or root) -> pk -> com > someuniversity

But another person told me, this shall be the path

""(null) -> com -> pk -> someuniversity

Which one is true ?
Old 02-24-2011, 05:35 AM   #4
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This is correct;
"(null or root) -> pk -> com > someuniversity"
The "TLD" in your example is pk. With edu as a sub-domain.


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