Set blanket packet/second limit on network interface for Ubuntu VPS server

sudo iptables -A INPUT -m limit --limit 2000/sec -j ACCEPT && sudo iptables -A INPUT -j DROP
VPS server hosts suspect DOS attack if PPS is too high. This limits packets at the interface level. Do "sudo apt-get install iptables-persistent" to make persistent, or, if you already have, reconfigure with "sudo dpkg-reconfigure iptables-persistent"
Sample Output
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere             limit: avg 2000/sec burst 5
DROP       all  --  anywhere             anywhere  

1
By: qdrizh
2015-03-09 20:16:17

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