#two kinds of ip format
#1. a single ip address 
#1.2.2.1

#2. a closed intervel represent by "-", to allow for a segment of ips or deny a segment of ips
#1.1.1.1-1.1.1.2


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#                  Notice!!!!                             #
#    1. use "#" to comment out a Whole line               #
#    2. ip address write in one line                      #
#    3. do not include extra space or other char          #
#    4. keep it only numbers or with one '-'              #
#    5. to enable white list, use "--ipAllow=<filename>"  #
###########################################################