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DDOS Perl is a denial of service attack handling script in Perl, like DDOS Deflate but with key differences. Can run at sub 1 minute intervals Banned IPs can be blocked for an increasing time Allowed IPs aren't stored in the same file as banned IPs

ddosperl Web Site



  • Simple Perl script to identify DOS attacks
  • Offending IPs are automatically banned
  • Banning using either APF or IPTables
  • Bans can escalate for longer periods of time based on a schedule
  • Receive E-mail notifications of banned IPs
  • Rotating log file created of activity
  • Various levels of debugging to see what's going on
  • Run in testmode to see what it would do
  • After a ban is removed, a reoffending IP will go back to the previous ban level
  • Keeps a history of banned IPs in case of reboot + resumes fine


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