Hello Joseph!   
      
   21 May 17 23:52, you wrote to all:   
      
    JL> I want to run my board on port 23, but I keep getting unwanted   
    JL> connections to it. Mostly from Chinese hackers, I presume. Anyone know   
    JL> a way to solve this, with iptables or the like?   
      
   I use this on my servers, and find it's very good.   
      
   https://github.com/tlhackque/BlockCountries   
      
      
   Stephen   
      
      
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