[CentOS] DNS

adrian kok wrote:
> Sorry. I use fake name

No, you didn't. www.mydomain.com does exist, so it cannot be fake.

> host command can return right ip address

I don't really like people who misuse existing domains for questions
like this, as it really makes it harder to debug things.

> My question is
> 
> I am curious why the 2nd line is 
> 
> 171203020173.upstream.com instead of www.mydomain.com

Because you don't have a correct reverse DNS setting for your domain.
But as you don't say what it is, I won't look further.

Ralph
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