On 20/10/15 07:26, Harshith Mulky wrote:
Hi All,
How can a Client verify if the DNS Server is Running(named service is
Running) or Down?
By the presence or absence of a reply to a query.
Does it periodically send any messages to the server.
No. It just sends a query when it has one, and waits for a reply; if it
doesn't get one, it tries another DNS server (if it has one)
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