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How can PRTG get an device name automatically ?

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I found that the device name has been entered automatically when I added an device with auto-discovery.

How can PRTG get the name automatically?

Which protocol does it use when searching for the device?

auto-discovery device hostname name

Created on Nov 25, 2019 8:40:08 AM by  Jonathan_Jung (0) 1



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Hey Jonathan,

to get the DNS name, PRTG simply performs a reverse lookup via the nslookup command. There is no other "magic" behind.

For details, please check the Name Resolution section here.

Best regards,
Sven Roggenhofer [Paessler Technical Support]

Created on Nov 25, 2019 9:57:15 AM by  Sven Roggenhofer [Paessler Technical Support]



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Hi, Sven Roggenhofer.

Does PRTG only use DNS ?

I found that PRTG got the device names automatically even though I don't set an DNS Server in NIC IP settings.

Thanks & Regards.

Created on Nov 26, 2019 3:02:44 AM by  Jonathan_Jung (0) 1



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Hey Jonathan,

basically PRTG asks Windows to resolve the name directly. Here a reverse-lookup and eventually also a NETBIOS name resolution takes place. This is then reported back to PRTG.

Best regards,
Sven Roggenhofer [Paessler Technical Support]

Created on Nov 26, 2019 11:38:08 AM by  Sven Roggenhofer [Paessler Technical Support]



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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.