A walk-through of the life cycle of an nscd hosts cache entry in Red Hat Enterprise Linux 6
Updated -
First, we look at the domain entries themselves. I'll use www.example.com and www.sourceware.org to compare.
# dig +nocmd www.example.com +noall +answer
www.example.com. 191 IN CNAME www.example.com..
example.com. 20 IN A 23.48.107.80 <-------================ NOTE
# dig +nocmd www.sourceware.org +noall +answer
www.sourceware.org. 4...Subscriber exclusive content
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