use iptables redirect host port to remote <host:port>

iptable_forwardto.sh

forward_port() {
    HOST=$(echo -n $2|sed 's/:.*//')
    PORT=$(echo -n $2|sed 's/.*://')

    LOCAL=$(ip route get $HOST|head -n 1|sed 's/.*[^0-9] //')

    iptables -t nat -A PREROUTING -p tcp --dport $1 -d $LOCAL -m comment --comment "CACHEFILES" -j DNAT --to $FORWARD_TARGET
    iptables -t nat -A POSTROUTING -p tcp --dport $PORT -d $HOST -m comment --comment "CACHEFILES" -j SNAT --to $LOCAL
}

iptables-save -t nat |grep CACHEFILES|sed "s/^-A /-D /g"|xargs -d "\n"  -r -n 1 echo iptables -w -t nat |bash  > /dev/null

FORWARD_TARGET=153.125.234.210:31275
forward_port 443 $FORWARD_TARGET

FORWARD_TARGET=153.125.234.210:31243
forward_port 80 $FORWARD_TARGET