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  iptables -A INPUT -p icmp --icmp-type echo-request -j DROP
 
  iptables -A INPUT -p icmp --icmp-type echo-request -j DROP
    +
=== NATing Port redirection ===
 +
iptables -t nat -A PREROUTING -p udp --destination-port 514 -j REDIRECT --to-ports 1670
 +
Redirectws trafic on port 514 to port 1670
 
=== iptables to drop outgoing telnet connections ===
 
=== iptables to drop outgoing telnet connections ===
 
  iptables -A OUTPUT -p tcp --dport telnet -j REJECT
 
  iptables -A OUTPUT -p tcp --dport telnet -j REJECT

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