aleskxyz

# This snippet is an example of how we can forward port 80 and 443 from a local server to a remote server
# These commands are working on Debian and Ubuntu

echo net.ipv4.ip_forward=1 > /etc/sysctl.d/99-ipforward.conf
sysctl -p
apt install iptables-persistent
iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to-destination <remote-server-ip>:80
iptables -t nat -A PREROUTING -p tcp --dport 443 -j DNAT --to-destination <remote-server-ip>:443
iptables -t nat -A POSTROUTING -j MASQUERADE
iptables-save > /etc/iptables/rules.v4

aleskxyz

You can setup a tunnel over SSH with -w option as below.
Try it at home, not server!

Server side
===========
ip tuntap add mode tun dev tun0
ip addr add 192.168.16.1/30 dev tun0
ip link set tun0 up
iptables -I FORWARD -o tun0 -i <public-interface> -j ACCEPT
iptables -I FORWARD -i tun0 -o <public-interface> -j ACCEPT