Created
December 11, 2012 03:29
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SSH Dictionary Attack Prevention with iptables
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| #!/bin/bash | |
| iptables -N SSH_CHECK | |
| iptables -A INPUT -p tcp --dport 22 -m state --state NEW -j SSH_CHECK | |
| iptables -A SSH_CHECK -m recent --set --name SSH | |
| iptables -A SSH_CHECK -m recent --update --seconds 60 --hitcount 4 --name SSH -j DROP |
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