iptables -t nat -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-port 8443 ip6tables -t nat -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-port 8443
iptables xiptables redirect xredirect preusmjeri xpreusmjeri reroute xreroute xprerouting port xport