Bug: hostnames not showing up about device-observatory HOT 6 CLOSED

Actually, that is a privacy feature. If you access the program from localhost, you should be able to see the data of all hosts. As an alternative, export all data to json (--json-output).
I intended to make it configurable, but didn't come around to do it.

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In case you already run the program on localhost, then this is indeed a bug. :-)

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It's indeed a bug, no hostnames on localhost (even in the json output)

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I just tested it. ./device-observatory --dev eth0 and then I went to localhost:800, clicked on one of the detected MAC addresses of my computer and got host names displayed.

Maybe you clicked on entries of devices on the network, that do not use that interface (eth0) as gateway. In that case you get a bunch of rather plain entries.
Usually device-observatory is meant to run on the gateway (e.g. wifi router).

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That may be the problem

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Reverse DNS would need to be implemented for this to work that way. dig -x <ipaddress> or nslookup <ipaddress> does this on Linux systems.
For device-observatory, this would be feature that would need to be implemented.

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