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On Wednesday 25 October 2006 11:08, Paulo Roberto Candido dos Santos wrote: |
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> Hello, I think you might find this useful: |
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> |
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> iptables -N REJECT-SSH |
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> iptables -A REJECT-SSH -j DROP -m recent --rcheck --name SSH --seconds 60 |
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> --hitcount 10 |
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> iptables -A REJECT-SSH -j LOG --log-prefix SSH-Bruteforce: |
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> iptables -A REJECT-SSH -j REJECT -p tcp --reject-with tcp-reset |
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> iptables -A REJECT-SSH -j REJECT |
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> |
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> iptables -A FORWARD -p tcp --dport 22 -m state --state NEW -m recent |
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> --update --name SSH --seconds 60 --hitcount 4 -j REJECT-SSH |
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> iptables -A FORWARD -p tcp --dport 22 -m state --state NEW -m recent --set |
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> --name SSH |
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> |
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iptables -N FLOOD |
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iptables -I INPUT -p tcp -j FLOOD |
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iptables -A FLOOD -p tcp -m state --state NEW -m recent --name FLOOD --set |
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iptables -A FLOOD -p tcp -m state --state NEW -m recent --name FLOOD \ |
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--update --seconds 60 --hitcount 8 -j DROP |
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|
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would apply this to all tcp services, synfloods, and syn portscans... |
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|
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Cheers, |
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Jason |
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|
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-- |
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gpg public key: http://lazybird.hyperintelligent.net/~jbooth/jbooth_key.asc |
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-- |
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