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13 lines
940 B
Markdown
Executable File
13 lines
940 B
Markdown
Executable File
## Overview
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Plugin for device name discovery via reverse DNS (PTR) lookups, using the [dig](https://linux.die.net/man/1/dig) utility (`dig +short -x <ip>`). Runs against IPs already discovered by a device scanner - it doesn't discover devices itself, only tries to attach a name to ones that don't have one yet. Functionally similar to `NSLOOKUP` (both do a reverse DNS lookup, just via a different tool) - enabling both is redundant, pick whichever behaves better against your DNS server.
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### Usage
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- Check the Settings page for details.
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### Notes
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- Only useful if your network's DNS server actually has PTR records for local devices (e.g. via your router's DHCP-to-DNS integration); many home networks don't, in which case this plugin will find little to nothing.
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- See the [Name resolution guide](https://docs.netalertx.com/NAME_RESOLUTION) for how this fits alongside the other naming plugins (`AVAHISCAN`, `NBTSCAN`, `NSLOOKUP`).
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