add script of wifif config for raspberry pi

[dotfiles.git] / bin / startHostapd.sh

diff --git a/bin/startHostapd.sh b/bin/startHostapd.sh
new file mode 100755 (executable)
index 0000000..510ba47
--- /dev/null
+++ b/bin/startHostapd.sh
@@ -0,0 +1,20 @@
+#!/bin/bash -xe
+
+# This tool is to enable Hotspot mode on Raspberry Pi
+# Refer https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md#internet-sharing
+
+# disable WiFi connection
+wpa_cli -i wlan0 disable_network 0 || true
+
+# Stop dhcp cliennt, will start it with static IP and no wpa_supplicant
+systemctl stop dhcpcd || true
+killall dhcpcd || true
+
+# start Hostapd mode
+systemctl start hostapd
+
+# start dhcp client with static IP
+dhcpcd --static ip_address=192.168.4.1/24 --nohook wpa_supplicant wlan0
+
+# start dnsmasq, dns server with IP reanges
+dnsmasq --interface=wlan0 --dhcp-range=192.168.4.2,192.168.4.20,255.255.255.0,24h