Cannot resolve network address for KDC...

[JJSoon]

Hello,

Before posting, I did read through the postings on this subject and
blah nothing worked.

-krb5.conf seems to conf'd correctly
-I've added kerberos.my.host to /etc/host mapping it to localhost
-Adding principals correctly 

So why am I getting this message?

Is it ok to have my default_realm = my hostname? Because quite
honestly I do not what else could be wrong.

Has anyone been able to resolve this problem -- if so can you please
show me the light?

Thanks,
JJsoon