title: Linux hardware: Wi-Fi connection
agents: linux
catalog: os/networking
license: GPLv2
distribution: check_mk
description:
 Wi-Fi link of a Linux host: connected network (SSID), signal in dBm (WARN below
 -70 dBm, CRIT below -80 dBm), link quality, band and frequency, bit rates,
 access point. Read with "iw" if installed, otherwise "nmcli", plus
 /proc/net/wireless. Not connected (with the reason, e.g. radio switched off by
 rfkill) is WARN if the interface was connected at discovery time, OK otherwise.
 Optionally the expected networks. Rule: "Linux hardware: Wi-Fi".

item:
 The interface name, e.g. "wlp0s20f3".

discovery:
 One service per wireless interface, except those whose radio is blocked by a
 hardware switch or the firmware (rule "Linux hardware: service discovery" to
 include them too).
