介绍一下如何查看本机打开的端口
开始－－运行－－cmd输入命令netstat -a
下面的是我的，开了一个下载软件和qq还有个浏览器，端口显得比较多（要是开了bt之类的软件会更多的）
Active Connections
ProtoLocal Address Foreign Address State
TCP sun-6626cb808be:epmapsun-6626cb808be:0 LISTENING
TCP sun-6626cb808be:microsoft-dssun-6626cb808be:0 LISTENING
TCP sun-6626cb808be:30701sun-6626cb808be:0 LISTENING
TCP sun-6626cb808be:30706sun-6626cb808be:0 LISTENING
TCP sun-6626cb808be:30707sun-6626cb808be:0 LISTENING
TCP sun-6626cb808be:1025sun-6626cb808be:0 LISTENING
TCP sun-6626cb808be:3021localhost:30706 ESTABLISHED
TCP sun-6626cb808be:30706localhost:3021 ESTABLISHED
TCP sun-6626cb808be:netbios-ssnsun-6626cb808be:0 LISTENING
TCP sun-6626cb808be:1439219.133.63.142:httpsCLOSE_WAIT
TCP sun-6626cb808be:3311219.133.60.243:8000 CLOSE_WAIT
TCP sun-6626cb808be:350758.60.9.17:8000 TIME_WAIT
UDP sun-6626cb808be:microsoft-ds*:*
UDP sun-6626cb808be:isakmp*:*
UDP sun-6626cb808be:1039*:*
UDP sun-6626cb808be:1085*:*
UDP sun-6626cb808be:1086*:*
UDP sun-6626cb808be:1087*:*
UDP sun-6626cb808be:1088*:*
UDP sun-6626cb808be:1089*:*
UDP sun-6626cb808be:1090*:*
UDP sun-6626cb808be:1092*:*
UDP sun-6626cb808be:1452*:*
UDP sun-6626cb808be:4001*:*
UDP sun-6626cb808be:4002*:*
UDP sun-6626cb808be:4500*:*
UDP sun-6626cb808be:6000*:*
UDP sun-6626cb808be:6001*:*
UDP sun-6626cb808be:6002*:*
UDP sun-6626cb808be:6003*:*
UDP sun-6626cb808be:6004*:*
UDP sun-6626cb808be:6005*:*
UDP sun-6626cb808be:6006*:*
UDP sun-6626cb808be:6007*:*
UDP sun-6626cb808be:6008*:*
UDP sun-6626cb808be:6009*:*
UDP sun-6626cb808be:6010*:*
UDP sun-6626cb808be:6011*:*
UDP sun-6626cb808be:6012*:*
UDP sun-6626cb808be:6014*:*
UDP sun-6626cb808be:8102*:*
UDP sun-6626cb808be:9000*:*
UDP sun-6626cb808be:30701*:*
UDP sun-6626cb808be:1051*:*
UDP sun-6626cb808be:1900*:*
UDP sun-6626cb808be:3018*:*
UDP sun-6626cb808be:3054*:*
UDP sun-6626cb808be:netbios-ns*:*
UDP sun-6626cb808be:netbios-dgm*:*
UDP sun-6626cb808be:1900*:*
通过这些可能看不出来什么的，可以通过IceSword（冰刃群共享里面有）
查看是哪个程序在哪个端口上，木马的服务端都会在端口监听的，
17、常见端口的介绍
TCP
21 FTP
23 TELNET
25 TCP SMTP
53 TCP DNS
80 HTTP
135 epmap
138 [冲击波]
139 smb
1433 TCP SQL SERVER
3389 Terminal Services
4444[冲击波]
UDP
67[冲击波]
腾讯QQ会打开4000或者是8000端口或者8080,灰鸽子的默认端口也是8000，但大多数黑客会改掉，
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