auto lo
iface lo inet loopback

iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp

domain mycompany.com
search mycompany.com
nameserver <ip address of dns server>

dhcp-host=<mac address of the rpi>,rpi,192.168.1.3

ssh: connect to host 192.168.1.3 port 22: Connection refused
lost connection