NetAlertX/server/plugins/dig_scan/README.md

Overview

Plugin for device name discovery via reverse DNS (PTR) lookups, using the 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.

Usage

• Check the Settings page for details.

Notes

• 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.
• See the Name resolution guide for how this fits alongside the other naming plugins (AVAHISCAN, NBTSCAN, NSLOOKUP).