IPQ BDB filtering is done by a user space daemon that issues verdicts after looking up the IP address in a Berkeley DB. The fuzzy blocking model, freely inspired by STOCKADE, is designed to block non-distributed dictionary attacks:
IPQ BDB filter may be considered as a fail2ban lite. Besides the daemon, this tiny package includes utilities to insert IP addresses from the command line, or parsing log files, and for deleting unused records and do some whitelisting.
As it requires Netfilter it is probably only usable under the Linux kernel 2.6.14 or later. In addition, it requires the following packages:
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There are no reported vulnerabilities