리눅스 머신은 안전한것으로 알고 있는데 tcpdump를 통해서 1434포트를 검사해 보면
 다량에 데이타가 서버로 날라오고 있습니다.
  
 tcpdump udp port 1434
  
 00:51:23.132122 210.220.162.23.1040 > 224.144.83.132.ms-sql-m:  udp 376 [ttl 1]
00:51:23.465868 210.220.162.23.1040 > 224.105.129.14.ms-sql-m:  udp 376 [ttl 1]
00:51:23.799467 210.220.162.23.1040 > 224.130.127.232.ms-sql-m:  udp 376 [ttl 1]
00:51:24.132988 210.220.162.23.1040 > 224.219.221.96.ms-sql-m:  udp 376 [ttl 1]
00:51:24.472528 210.220.162.23.1040 > 224.193.119.44.ms-sql-m:  udp 376 [ttl 1]
00:51:24.817044 210.220.162.23.1040 > 224.180.55.83.ms-sql-m:  udp 376 [ttl 1]
00:51:25.155375 210.220.162.23.1040 > 224.26.103.238.ms-sql-m:  udp 376 [ttl 1]
00:51:25.494245 210.220.162.23.1040 > 224.128.143.110.ms-sql-m:  udp 376 [ttl 1]
00:51:25.833730 210.220.162.23.1040 > 224.230.48.25.ms-sql-m:  udp 376 [ttl 1]
00:51:26.178129 210.220.162.23.1040 > 224.153.52.51.ms-sql-m:  udp 376 [ttl 1]
00:51:26.517077 210.220.162.23.1040 > 224.127.75.226.ms-sql-m:  udp 376 [ttl 1]
00:51:26.855678 210.220.162.23.1040 > 224.101.155.41.ms-sql-m:  udp 376 [ttl 1]
00:51:27.189645 210.220.162.23.1040 > 224.126.112.154.ms-sql-m:  udp 376 [ttl 1]
00:51:27.527747 210.220.162.23.1040 > 224.228.238.235.ms-sql-m:  udp 376 [ttl 1]
00:51:27.872807 210.220.162.23.1040 > 224.23.225.71.ms-sql-m:  udp 376 [ttl 1]
00:51:28.200704 210.220.162.23.1040 > 224.163.198.173.ms-sql-m:  udp 376 [ttl 1]
00:51:28.539658 210.220.162.23.1040 > 224.137.12.61.ms-sql-m:  udp 376 [ttl 1]
00:51:28.873436 210.220.162.23.1040 > 224.162.18.101.ms-sql-m:  udp 376 [ttl 1]
00:51:29.201282 210.220.162.23.1040 > 224.46.73.219.ms-sql-m:  udp 376 [ttl 1]
00:51:29.540473 210.220.162.23.1040 > 224.148.207.24.ms-sql-m:  udp 376 [ttl 1]
00:51:29.890250 210.220.162.23.1040 > 224.212.218.75.ms-sql-m:  udp 376 [ttl 1]
00:51:30.229434 210.220.162.23.1040 > 224.58.186.117.ms-sql-m:  udp 376 [ttl 1]
00:51:30.562470 210.220.162.23.1040 > 224.147.246.8.ms-sql-m:  udp 376 [ttl 1]
00:51:30.906829 210.220.162.23.1040 > 224.6.228.213.ms-sql-m:  udp 376 [ttl 1]
00:51:31.251984 210.220.162.23.1040 > 224.185.63.151.ms-sql-m:  udp 376 [ttl 1]
00:51:31.590149 210.220.162.23.1040 > 224.159.6.113.ms-sql-m:  udp 376 [ttl 1]
00:51:31.918758 210.220.162.23.1040 > 224.43.4.104.ms-sql-m:  udp 376 [ttl 1]
00:51:32.263302 210.220.162.23.1040 > 224.158.227.33.ms-sql-m:  udp 376 [ttl 1]
00:51:32.596532 210.220.162.23.1040 > 224.247.224.4.ms-sql-m:  udp 376 [ttl 1]
00:51:32.924653 210.220.162.23.1040 > 224.131.102.72.ms-sql-m:  udp 376 [ttl 1]
00:51:33.264320 210.220.162.23.1040 > 224.105.124.29.ms-sql-m:  udp 376 [ttl 1]
00:51:33.597253 210.220.162.23.1040 > 224.130.58.36.ms-sql-m:  udp 376 [ttl 1]
00:51:33.930502 210.220.162.23.1040 > 224.219.88.121.ms-sql-m:  udp 376 [ttl 1]
00:51:34.269553 210.220.162.23.1040 > 224.193.114.109.ms-sql-m:  udp 376 [ttl 1]
00:51:34.608760 210.220.162.23.1040 > 224.167.69.110.ms-sql-m:  udp 376 [ttl 1]
00:51:34.947775 210.220.162.23.1040 > 224.141.81.97.ms-sql-m:  udp 376 [ttl 1]
00:51:35.281556 210.220.162.23.1040 > 224.166.64.160.ms-sql-m:  udp 376 [ttl 1]
00:51:35.620774 210.220.162.23.1040 > 224.12.123.62.ms-sql-m:  udp 376 [ttl 1]
00:51:35.965058 210.220.162.23.1040 > 224.63.203.158.ms-sql-m:  udp 376 [ttl 1]
00:51:36.293595 210.220.162.23.1040 > 224.203.168.205.ms-sql-m:  udp 376 [ttl 1]
00:51:36.621203 210.220.162.23.1040 > 224.87.234.89.ms-sql-m:  udp 376 [ttl 1]
00:51:36.970845 210.220.162.23.1040 > 224.151.101.228.ms-sql-m:  udp 376 [ttl 1]
00:51:37.304375 210.220.162.23.1040 > 224.48.123.145.ms-sql-m:  udp 376 [ttl 1]
00:51:37.654444 210.220.162.23.1040 > 224.112.70.71.ms-sql-m:  udp 376 [ttl 1]
00:51:37.988349 210.220.162.23.1040 > 224.73.236.14.ms-sql-m:  udp 376 [ttl 1]
00:51:38.333382 210.220.162.23.1040 > 224.60.82.195.ms-sql-m:  udp 376 [ttl 1]
00:51:38.677817 210.220.162.23.1040 > 224.111.134.234.ms-sql-m:  udp 376 [ttl 1]
00:51:39.016607 210.220.162.23.1040 > 224.85.62.37.ms-sql-m:  udp 376 [ttl 1]
00:51:39.344523 210.220.162.23.1040 > 224.225.189.164.ms-sql-m:  udp 376 [ttl 1]
  
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