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Mayur_Pipaliya Aug 16th, 2013 46 Never
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  1. # Whitelist certain IP and block everything else on port 22
  2. iptables -A INPUT -p tcp --dport 22 -s <IP_1> -j ACCEPT
  3. iptables -A INPUT -p tcp --dport 22 -s <IP_2> -j ACCEPT
  4. iptables -A INPUT -p tcp --dport 22 -j DROP
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