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Adding WiFi note (#6227)

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Adding a note that modern smart phones may turn off their WiFi when idle, so this tracker may not be reliable when used by itself.
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DubhAd 2018-09-09 08:40:53 +01:00 committed by Fabian Affolter
parent 93d9267500
commit 0462ddbb4a
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source/_components/device_tracker.nmap_tracker.markdown
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@ -15,6 +15,10 @@ featured: false
As an alternative to the router-based device tracking, it is possible to directly scan the network for devices by using Nmap. The IP addresses to scan can be specified in any format that Nmap understands, including the network-prefix notation (`192.168.1.1/24`) and the range notation (`192.168.1.1-255`).
<p class='note'>
Please keep in mind that modern smart phones will usually turn off WiFi when they are idle. Simple trackers like this may not be reliable on their own.
</p>
You might have to install the packages for `arp` and `nmap`. On Debian based hosts (for example Hassbian and Raspbian) do so by running `$ sudo apt-get install net-tools nmap`. On a Fedora host run `$ sudo dnf -y install nmap`.
<p class='note'>