Configuring static IP on Raspberry Pi (ethernet/eth0/LAN)

nano /etc/dhcpcd.conf

interface eth0
static ip_address=192.168.72.8/24
static_routers=192.168.72.1
static domain_name_servers=192.168.72.1

Restart with caution, remember, your IP will be changed:

shutdown -r now

Clean old key with:

ssh-keygen -R 192.168.72.195