added wifi hotspot stuff

2 files changed, 32 insertions, 0 deletions

diff --git a/initWifiHotspot.sh b/initWifiHotspot.sh
new file mode 100755
index 0000000..f307427
--- /dev/null
+++ b/initWifiHotspot.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# Usage: ./{executable} {wifi_card_interface} {interface_with_internet}
+########### Initial wifi interface configuration #############
+sudo ip link set $1 down
+sudo ip addr flush dev $1
+sudo ip link set $1 up
+sudo ip addr add 10.0.0.1/24 dev $1
+# If you still use ifconfig for some reason, replace the above lines with the following
+# ifconfig $1 up 10.0.0.1 netmask 255.255.255.0
+sleep 2
+###########
+########### Start dnsmasq ##########
+if [ -z "$(ps -e | grep dnsmasq)" ]
+then
+    sudo dnsmasq
+fi
+###########
+########### Enable NAT ############
+sudo iptables -t nat -A POSTROUTING -o $2 -j MASQUERADE
+sudo iptables -A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
+sudo iptables -A FORWARD -i $1 -o $2 -j ACCEPT
+#Thanks to lorenzo
+#Uncomment the line below if facing problems while sharing PPPoE, see lorenzo's comment for more details
+#iptables -I FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
+#sudo sysctl -w net.ipv4.ip_forward=1
+###########
+########## Start hostapd ###########
+#hostapd /etc/hostapd/hostapd.conf
+sudo systemctl restart hostapd
+sudo killall dnsmasq
diff --git a/whatip b/whatip
new file mode 100755
index 0000000..acbab92
--- /dev/null
+++ b/whatip
@@ -0,0 +1,2 @@
+#!/bin/bash
+ip -4 -f inet address show dev wlp4s0 | grep 192 | awk '{print $2}' | cut -d'/' -f 1