/etc/hostapd.conf SSID WPA-key /etc/dnsmasq.conf DHCP range DNS server /etc/wvdial.conf UMTS modem connection settings /etc/issue Prompt you see before logging in via HDMI /etc/network/interfaces IP of your raspberry Various network settings /etc/udev/rules.d/70-usb-modeswitch.rules switching info for your UMTS modem