node.js - Port trap/guard ip BAN -


i have proxy socks5 server.

i trying make systems prevent me server being scaned oppening 10 random ports , whoever surfs on 1 on banned.

the problem 8 of 10 don't work, mean not opened, though see them in netstat in listening mode.

code :

var portguards = 10;  open_portguards(portguards);  function open_portguards(portguards) {     if(debug >= 3) console.log("cl.portguards.open [oppening "+portguards+" portguards ...]");      // create server on port      for(var = 1; <= portguards; i++)     {         create_portguard();     } }  function create_portguard() {     var random_port = rand(1080,60000);      var net2 = require('net');     var server;      server = net2.createserver(function(socket){                 socket.on("data", function(data){             // ban ip, close server, open new port trap             if(isset(socket.remoteaddress) && socket.remoteaddress != "127.0.0.1" && socket.remoteaddress != server_ip)             {                 if(debug >= 3) console.log("cl.portguard.ban banning_ip["+socket.remoteaddress +"]");                  firewall_ban_by_ip(socket.remoteaddress,'portguard',function(){});                  settimeout(function(){                     create_portguard();                 },1000);                  server.close();                 socket.end();                            }         });          socket.on("error", function(error){             if(debug >= 3) console.log("cl.portguard.error ["+error.tostring()+"] ");             socket.end();         });          socket.on("end", function(){             if(debug >= 3) console.log("cl.portguard.end");         });           socket.on("connect", function(){             if(debug >= 3) console.log("cl.portguard.connect");         });           socket.on("lookup", function(){             if(debug >= 3) console.log("cl.portguard.lookup");         });           socket.on("timeout", function(){             if(debug >= 3) console.log("cl.portguard.timeout");         });           socket.on("drain", function(){             if(debug >= 3) console.log("cl.portguard.drain");         });          socket.on("close", function(error){             if(debug >= 3) console.log("cl.portguard.close");             socket.end();         });     });      server.on("connection",function(){         if(debug >= 3) console.log('cl.portguard.server.connection');     });      server.on("listening",function(){         if(debug >= 3) console.log('cl.portguard.server.listening');     });      server.on("error",function(error){         if(debug >= 3) console.log('cl.portguard.server.error error_server ['+error.tostring()+']');          if(error.tostring().includes("eaddrinuse"))         {             settimeout(function(){                 create_portguard();             },1000);              server.close();         }     });      server.on("close",function(){         if(debug >= 3) console.log('cl.portguard.server.close');     });      server.listen(random_port,drone_server_host,function(){         if(debug >= 3) console.log('cl.portguard.server portguard_placed ['+drone_server_host+':'+random_port+']');     }); }

output :

cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:2765] cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:39453] cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:30421] cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:51256] cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:40036] cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:19320] cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:16789] cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:4603] cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:2445] cl.portguard.server.listening cl.portguard.server portguard_placed [5.5.5.5:46736]

i surf on port 2765 , in firefox

the proxy server refusing connections

witch normal expected

cl.portguard.server.close cl.portguard.close cl.firewall.ban.ip [1.2.3.4] (insert) cl.firewall.apply apply_multiple_port_range on [1.2.3.4/32 1080:60000] cl.portguard.server.listening cl.portguard.server sockstrap_placed [5.5.5.5:25324]

i surf on port 25324 , in firefox timeout

the connection has timed out

as if server not open, netstat won't lie, socket opened every time.

netstat -an | grep 25324 tcp        0      0 5.5.5.5:25324   0.0.0.0:*               listen

what problem? ideas? @ least debug ideas.

thanks.


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