How to enable 1:1 NAT in Iptables

1:1 NAT maps a single Public IP Address to one of your computer within your local area network (LAN).
Unlike port forwarding, 1:1 NAT forwards all ports from one external IP to one internal IP.

iptables -t nat -A POSTROUTING -o eth0 -s 192.168.1.2 -j SNAT --to-source 83.229.64.2
iptables -t nat -A PREROUTING -i eth0 -d 83.229.64.2 -j DNAT --to-destination 192.168.1.2
iptables -A FORWARD -s 83.229.64.2 -j ACCEPT
iptables -A FORWARD -d 192.168.1.2 -j ACCEPT