Adaptive Firewall Statistics for OS X Server

I wrote up afctl (the command line tool to manage the OS X Server Adaptive Firewall) awhile back here http://krypted.com/mac-security/a-little-more-about-afctl-in-os-x-server. One thing I didn’t touch on is statistics. There’s a nice little command called hb_summary located in /Applications/Server.app/Contents/ServerRoot/System/Library/CoreServices/AdaptiveFirewall.bundle/Contents/MacOS that provides statistics for blocked hosts. To see statistics about how much the Adaptive Firewall is being used, just run the command with no options:

/Applications/Server.app/Contents/ServerRoot/System/Library/CoreServices/AdaptiveFirewall.bundle/Contents/MacOS/hb_summary

The output provides the following information (helpful if plugging this information into a tool like Splunk):

  • Date
  • Date statistics start
  • Number of hosts blocked
  • Addresses blocked
  • Number of times each address was blocked
  • Last time a host was blocked
  • Total number of times a block was issued

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