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
Am 20.10.2015 um 13:26 schrieb Steven Carr:
On 20 October 2015 at 10:41, Phil Mayers wrote:
On 20/10/15 07:26, Harshith Mulky wrote:
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
On 20 October 2015 at 10:41, Phil Mayers wrote:
> 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.
That doesn't
Hi All,
How can a Client verify if the DNS Server is Running(named service is Running)
or Down?
Does it periodically send any messages to the server. What Kind of messages are
required by the client to be sent towards server to determine if the DNS IP is
reachable or not?
Thanks
Harshith
On 20.10.15 11:56, Harshith Mulky wrote:
How can a Client verify if the DNS Server is Running(named service is Running)
or Down?
Why should client know such info?
The clients needs to have the answer - it sends message and if the server
replies properly, it's up and running.
Does it
Hello,
Network issue should be detected by other ways.
But DNS health check can be done by sending a normal DNS query to the
server and try get a valid response.
This is the script what I use to check the health of my DNS server. :D
#!/usr/bin/perl
use strict;
use Net::DNS;
use POSIX
named service is
> Running) or Down?
> Does it periodically send any messages to the server. What Kind of messages
> are required by the client to be sent towards server to determine if the DNS
> IP is reachable or not?
>
> Thanks
> Harshith
>
In message , Harshith Mulky writes:
>
> No Mark, This is not a question I am asked to answer for some course
>
> We have an implementation where, once the DNS Servers are down, The
> Client (Our device) Blacklists the IP address of DNS Servers for some
On 10/20/2015 08:49 AM, Harshith Mulky wrote:
> We have an implementation where, once the DNS Servers are down, The
> Client (Our device) Blacklists the IP address of DNS Servers for some
> period of Time
How long is "some period of time"? Is it something reasonable (read:
minutes) or
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