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I've installed Snort 2.8.5.3 pkg v. 1.21.
But there is incomplete include section in my snort_rules_edit.php file,
so i have an error "Call to undefined function: convert_friendly_interface_to_real_interface_name2() in /usr/local/www/snort/snort_rules_edit.php on line 68"

a bit of my snort_rules_edit.php file:
40 require_once("guiconfig.inc");
41 require_once("config.inc");

I think, that must be added:
42 require_once("/usr/local/pkg/snort/snort_gui.inc");
43 require_once("/usr/local/pkg/snort/snort.inc");

Please, correct this. Thank you =)