[CVS Update of freesbie2 - M:0 A:2 R:0]

Log Message:
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Add pf plugin, which creates a basic pf.conf in a dynamic fashion, detecting
present ethernet devices and allowing only outside connections and incoming
SSH connections.

Author: Dominique Goncalves <dominique.goncalves <a> gmail.com>

Added Files:
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    freesbie2/extra:
        pf.sh
    freesbie2/extra/pf:
        pf_rules.sh
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