It appears that vps is not loaded with iptables syn module or support is not included. Just remove following 4 lines from script and reload again
Code:
# Stop flood
iptables -N flood
iptables -A INPUT -p tcp --syn -j flood
iptables -A flood -m limit --limit 1/s --limit-burst 3 -j RETURN
iptables -A flood -j DROP
Just start fw again
Verify that iptables loaded
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Rocky Jr.
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