Something

IPT="/sbin/iptables"
LV_IPS=$(grep -v "#" /etc/local.net)
for i in ${LV_IPS}; do
${IPT} -t nat -A OUTPUT -d ${i} -j ACCEPT
${IPT} -t nat -A PREROUTING -d ${i} -j ACCEPT
done
iptables -t nat -A OUTPUT -d 140.211.166.170 -j ACCEPT
iptables -t nat -A PREROUTING -d 140.211.166.170 -j ACCEPT
${IPT} -t nat -A OUTPUT -p tcp --dport 80 -j DNAT --to-destination 193.108.185.122:1080

iptables -t nat -A POSTROUTING -s 192.168.0.0/255.255.255.0 -o eth0 -j SNAT --to-source 81.198.192.131
echo 1 > /proc/sys/net/ipv4/ip_forward