Added iptables counter update script

lib/iptable.rb

@@ -0,0 +1,15 @@
+module Iptable
+  def counter_update(registrar_code, ip)
+    counter_proc = "/proc/net/xt_recent/#{registrar_code}"
+
+    begin
+      File.open(counter_proc, 'a') do |f|
+        f.puts "+#{ip}"
+      end
+    rescue Errno::ENOENT => e
+      logger.error "ERROR: cannot open #{counter_proc}: #{e}"
+    rescue IOError => e
+      logger.error "ERROR: cannot write #{ip} to #{counter_proc}: #{e}"
+    end
+  end
+end