\u7cfb\u7edf\u7ba1\u7406\u5458\u53ef\u4ee5\u7528\u5b83\u6765\u5ba1\u8ba1\u7cfb\u7edf\u5b89\u5168\uff0c\u7528\u5b83\u6765\u627e\u51fa\u5f00\u653e\u7684\u7aef\u53e3\u7136\u540e\u4fdd\u62a4\u8fd9\u4e9b\u7aef\u53e3\u3002 \u7ba1\u7406\u5458\u8fd8\u80fd\u7528\u5b83\u4f5c\u4e3a\u5ba2\u6237\u7aef\u6765\u5ba1\u8ba1 Web \u670d\u52a1\u5668\u3001telnet \u670d\u52a1\u5668\u3001\u90ae\u4ef6\u670d\u52a1\u5668\u7b49\uff0c \u901a\u8fc7 nc<\/span> \u6211\u4eec\u53ef\u4ee5\u63a7\u5236\u53d1\u9001\u7684\u6bcf\u4e2a\u5b57\u7b26\uff0c\u4e5f\u53ef\u4ee5\u67e5\u770b\u5bf9\u65b9\u7684\u56de\u5e94\u3002<\/p>\n

\u6211\u4eec\u8fd8\u53ef\u4ee5\u7528\u5b83\u6355\u83b7\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e\u4ee5\u6b64\u6765\u4e86\u89e3\u8fd9\u4e9b\u5ba2\u6237\u7aef\u662f\u505a\u4ec0\u4e48\u7684\u3002<\/p>\n

\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u4f1a\u901a\u8fc7 10 \u4e2a\u4f8b\u5b50\u6765\u5b66\u4e60\u5982\u4f55\u4f7f\u7528 nc<\/span> \u547d\u4ee4\u3002<\/p>\n

\u4f8b\u5b50\uff1a 1) \u76d1\u542c\u5165\u7ad9\u8fde\u63a5<\/strong><\/div>\n
\u901a\u8fc7 -l<\/span> \u9009\u9879\uff0cncat<\/span> \u53ef\u4ee5\u8fdb\u5165\u76d1\u542c\u6a21\u5f0f\uff0c\u4f7f\u6211\u4eec\u53ef\u4ee5\u5728\u6307\u5b9a\u7aef\u53e3\u76d1\u542c\u5165\u7ad9\u8fde\u63a5\u3002 \u5b8c\u6574\u7684\u547d\u4ee4\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n
$ ncat -l port_number\r\n<\/pre>\n
\u6bd4\u5982\uff0c<\/p>\n
$ ncat -l 8080\r\n<\/pre>\n
\u670d\u52a1\u5668\u5c31\u4f1a\u5f00\u59cb\u5728 8080 \u7aef\u53e3\u76d1\u542c\u5165\u7ad9\u8fde\u63a5\u3002<\/p>\n
\u4f8b\u5b50\uff1a 2) \u8fde\u63a5\u8fdc\u7a0b\u7cfb\u7edf<\/strong><\/div>\n
\u4f7f\u7528\u4e0b\u9762\u547d\u4ee4\u53ef\u4ee5\u7528 nc<\/span> \u6765\u8fde\u63a5\u8fdc\u7a0b\u7cfb\u7edf\uff0c<\/p>\n
$ ncat IP_address port_number\r\n<\/pre>\n
\u8ba9\u6211\u4eec\u6765\u770b\u4e2a\u4f8b\u5b50\uff0c<\/p>\n
$ ncat 192.168.1.100 80\r\n<\/pre>\n
\u8fd9\u4f1a\u521b\u5efa\u4e00\u4e2a\u8fde\u63a5\uff0c\u8fde\u63a5\u5230 IP \u4e3a 192.168.1.100 \u7684\u670d\u52a1\u5668\u4e0a\u7684 80 \u7aef\u53e3\uff0c\u7136\u540e\u6211\u4eec\u5c31\u53ef\u4ee5\u5411\u670d\u52a1\u5668\u53d1\u9001\u6307\u4ee4\u4e86\u3002 \u6bd4\u5982\u6211\u4eec\u53ef\u4ee5\u8f93\u5165\u4e0b\u9762\u5185\u5bb9\u6765\u83b7\u53d6\u5b8c\u6574\u7684\u7f51\u9875\u5185\u5bb9<\/p>\n
GET \/ HTTP\/1.1\r\n<\/pre>\n
\u6216\u8005\u83b7\u53d6\u9875\u9762\u540d\u79f0\uff0c<\/p>\n
GET \/ HTTP\/1.1\r\n<\/pre>\n
\u6216\u8005\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u83b7\u5f97\u64cd\u4f5c\u7cfb\u7edf\u6307\u7eb9\u6807\u8bc6\uff0c<\/p>\n
HEAD \/ HTTP\/1.1\r\n<\/pre>\n
\u8fd9\u4f1a\u544a\u8bc9\u6211\u4eec\u4f7f\u7528\u7684\u662f\u4ec0\u4e48\u8f6f\u4ef6\u6765\u8fd0\u884c\u8fd9\u4e2a web \u670d\u52a1\u5668\u7684\u3002<\/p>\n
\u4f8b\u5b50\uff1a 3) \u8fde\u63a5 UDP \u7aef\u53e3<\/strong><\/div>\n
\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cnc<\/span> \u521b\u5efa\u8fde\u63a5\u65f6\u53ea\u4f1a\u8fde\u63a5 TCP \u7aef\u53e3\u3002 \u4e0d\u8fc7\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 -u<\/span> \u9009\u9879\u6765\u8fde\u63a5\u5230 UDP \u7aef\u53e3\uff0c<\/p>\n
$ ncat -l -u 1234\r\n<\/pre>\n
\u73b0\u5728\u6211\u4eec\u7684\u7cfb\u7edf\u4f1a\u5f00\u59cb\u76d1\u542c UDP \u7684 1234 \u7aef\u53e3\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684 netstat<\/span> \u547d\u4ee4\u6765\u9a8c\u8bc1\u8fd9\u4e00\u70b9\uff0c<\/p>\n
$ netstat -tunlp | grep 1234\r\nudp 0 0 0.0.0.0:1234 0.0.0.0:* 17341\/nc\r\nudp6 0 0 :::1234 :::* 17341\/nc\r\n<\/pre>\n
\u5047\u8bbe\u6211\u4eec\u60f3\u53d1\u9001\u6216\u8005\u8bf4\u6d4b\u8bd5\u67d0\u4e2a\u8fdc\u7a0b\u4e3b\u673a UDP \u7aef\u53e3\u7684\u8fde\u901a\u6027\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u547d\u4ee4\uff0c<\/p>\n
$ ncat -v -u {host-ip} {udp-port}\r\n<\/pre>\n
\u6bd4\u5982\uff1a<\/p>\n
[root@localhost ~]# ncat -v -u 192.168.105.150 53\r\nNcat: Version 6.40 ( http:\/\/nmap.org\/ncat )\r\nNcat: Connected to 192.168.105.150:53\u3002\r\n<\/pre>\n
\u4f8b\u5b50\uff1a 4) \u5c06 nc<\/span> \u4f5c\u4e3a\u804a\u5929\u5de5\u5177<\/strong><\/div>\n
nc<\/span> \u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u804a\u5929\u5de5\u5177\u6765\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u914d\u7f6e\u670d\u52a1\u5668\u76d1\u542c\u67d0\u4e2a\u7aef\u53e3\uff0c\u7136\u540e\u4ece\u8fdc\u7a0b\u4e3b\u673a\u4e0a\u8fde\u63a5\u5230\u670d\u52a1\u5668\u7684\u8fd9\u4e2a\u7aef\u53e3\uff0c\u5c31\u53ef\u4ee5\u5f00\u59cb\u53d1\u9001\u6d88\u606f\u4e86\u3002 \u5728\u670d\u52a1\u5668\u8fd9\u7aef\u8fd0\u884c\uff1a<\/p>\n
$ ncat -l 8080\r\n<\/pre>\n
\u5728\u8fdc\u7a0b\u5ba2\u6237\u7aef\u4e3b\u673a\u4e0a\u8fd0\u884c\uff1a<\/p>\n
$ ncat 192.168.1.100 8080\r\n<\/pre>\n
\u4e4b\u540e\u5f00\u59cb\u53d1\u9001\u6d88\u606f\uff0c\u8fd9\u4e9b\u6d88\u606f\u4f1a\u5728\u670d\u52a1\u5668\u7ec8\u7aef\u4e0a\u663e\u793a\u51fa\u6765\u3002<\/p>\n
\u4f8b\u5b50\uff1a 5) \u5c06 nc<\/span> \u4f5c\u4e3a\u4ee3\u7406<\/strong><\/div>\n
nc<\/span> \u4e5f\u53ef\u4ee5\u7528\u6765\u505a\u4ee3\u7406\u3002\u6bd4\u5982\u4e0b\u9762\u8fd9\u4e2a\u4f8b\u5b50\uff0c<\/p>\n
$ ncat -l 8080 | ncat 192.168.1.200 80\r\n<\/pre>\n
\u6240\u6709\u53d1\u5f80\u6211\u4eec\u670d\u52a1\u5668 8080 \u7aef\u53e3\u7684\u8fde\u63a5\u90fd\u4f1a\u81ea\u52a8\u8f6c\u53d1\u5230 192.168.1.200 \u4e0a\u7684 80 \u7aef\u53e3\u3002 \u4e0d\u8fc7\u7531\u4e8e\u6211\u4eec\u4f7f\u7528\u4e86\u7ba1\u9053\uff0c\u6570\u636e\u53ea\u80fd\u88ab\u5355\u5411\u4f20\u8f93\u3002 \u8981\u540c\u65f6\u80fd\u591f\u63a5\u53d7\u8fd4\u56de\u7684\u6570\u636e\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u53cc\u5411\u7ba1\u9053\u3002 \u4f7f\u7528\u4e0b\u9762\u547d\u4ee4\u53ef\u4ee5\u505a\u5230\u8fd9\u70b9:<\/p>\n
$ mkfifo 2way\r\n$ ncat -l 8080 0<2way | ncat 192.168.1.200 80 1>2way\r\n<\/pre>\n
\u73b0\u5728\u4f60\u53ef\u4ee5\u901a\u8fc7 nc<\/span> \u4ee3\u7406\u6765\u6536\u53d1\u6570\u636e\u4e86\u3002<\/p>\n
\u4f8b\u5b50\uff1a 6) \u4f7f\u7528 nc<\/span> \u62f7\u8d1d\u6587\u4ef6<\/strong><\/div>\n
nc<\/span> \u8fd8\u80fd\u7528\u6765\u5728\u7cfb\u7edf\u95f4\u62f7\u8d1d\u6587\u4ef6\uff0c\u867d\u7136\u8fd9\u4e48\u505a\u5e76\u4e0d\u63a8\u8350\uff0c\u56e0\u4e3a\u7edd\u5927\u591a\u6570\u7cfb\u7edf\u9ed8\u8ba4\u90fd\u5b89\u88c5\u4e86 ssh<\/span>\/scp<\/span>\u3002 \u4e0d\u8fc7\u5982\u679c\u4f60\u6070\u597d\u9047\u89c1\u4e2a\u6ca1\u6709 ssh<\/span>\/scp<\/span> \u7684\u7cfb\u7edf\u7684\u8bdd\uff0c \u4f60\u53ef\u4ee5\u7528 nc<\/span> \u6765\u4f5c\u6700\u540e\u7684\u52aa\u529b\u3002<\/p>\n
\u5728\u8981\u63a5\u53d7\u6570\u636e\u7684\u673a\u5668\u4e0a\u542f\u52a8 nc<\/span> \u5e76\u8ba9\u5b83\u8fdb\u5165\u76d1\u542c\u6a21\u5f0f\uff1a<\/p>\n
$ ncat -l 8080 > file.txt\r\n<\/pre>\n
\u73b0\u5728\u53bb\u8981\u88ab\u62f7\u8d1d\u6570\u636e\u7684\u673a\u5668\u4e0a\u8fd0\u884c\u4e0b\u9762\u547d\u4ee4\uff1a<\/p>\n
$ ncat 192.168.1.100 8080 --send-only < data.txt\r\n<\/pre>\n
\u8fd9\u91cc\uff0cdata.txt<\/span> \u662f\u8981\u53d1\u9001\u7684\u6587\u4ef6\u3002 -\u2013send-only<\/span> \u9009\u9879\u4f1a\u5728\u6587\u4ef6\u62f7\u8d1d\u5b8c\u540e\u7acb\u5373\u5173\u95ed\u8fde\u63a5\u3002 \u5982\u679c\u4e0d\u52a0\u8be5\u9009\u9879\uff0c \u6211\u4eec\u9700\u8981\u624b\u5de5\u6309\u4e0b ctrl+c<\/span> \u6765\u5173\u95ed\u8fde\u63a5\u3002<\/p>\n
\u6211\u4eec\u4e5f\u53ef\u4ee5\u7528\u8fd9\u79cd\u65b9\u6cd5\u62f7\u8d1d\u6574\u4e2a\u78c1\u76d8\u5206\u533a\uff0c\u4e0d\u8fc7\u8bf7\u4e00\u5b9a\u8981\u5c0f\u5fc3\u3002<\/p>\n
\u4f8b\u5b50\uff1a 7) \u901a\u8fc7 nc<\/span> \u521b\u5efa\u540e\u95e8<\/strong><\/div>\n
nc<\/span> \u547d\u4ee4\u8fd8\u53ef\u4ee5\u7528\u6765\u5728\u7cfb\u7edf\u4e2d\u521b\u5efa\u540e\u95e8\uff0c\u5e76\u4e14\u8fd9\u79cd\u6280\u672f\u4e5f\u786e\u5b9e\u88ab\u9ed1\u5ba2\u5927\u91cf\u4f7f\u7528\u3002 \u4e3a\u4e86\u4fdd\u62a4\u6211\u4eec\u7684\u7cfb\u7edf\uff0c\u6211\u4eec\u9700\u8981\u77e5\u9053\u5b83\u662f\u600e\u4e48\u505a\u7684\u3002 \u521b\u5efa\u540e\u95e8\u7684\u547d\u4ee4\u4e3a\uff1a<\/p>\n
$ ncat -l 10000 -e \/bin\/bash\r\n<\/pre>\n
-e<\/span> \u6807\u5fd7\u5c06\u4e00\u4e2a bash \u4e0e\u7aef\u53e3 10000 \u76f8\u8fde\u3002\u73b0\u5728\u5ba2\u6237\u7aef\u53ea\u8981\u8fde\u63a5\u5230\u670d\u52a1\u5668\u4e0a\u7684 10000 \u7aef\u53e3\u5c31\u80fd\u901a\u8fc7 bash \u83b7\u53d6\u6211\u4eec\u7cfb\u7edf\u7684\u5b8c\u6574\u8bbf\u95ee\u6743\u9650\uff1a<\/p>\n
$ ncat 192.168.1.100 10000\r\n<\/pre>\n
\u4f8b\u5b50\uff1a 8) \u901a\u8fc7 nc<\/span> \u8fdb\u884c\u7aef\u53e3\u8f6c\u53d1<\/strong><\/div>\n
\u6211\u4eec\u901a\u8fc7\u9009\u9879 -c<\/span> \u6765\u7528 nc<\/span> \u8fdb\u884c\u7aef\u53e3\u8f6c\u53d1\uff0c\u5b9e\u73b0\u7aef\u53e3\u8f6c\u53d1\u7684\u8bed\u6cd5\u4e3a\uff1a<\/p>\n
$ ncat -u -l 80 -c 'ncat -u -l 8080'\r\n<\/pre>\n
\u8fd9\u6837\uff0c\u6240\u6709\u8fde\u63a5\u5230 80 \u7aef\u53e3\u7684\u8fde\u63a5\u90fd\u4f1a\u8f6c\u53d1\u5230 8080 \u7aef\u53e3\u3002<\/p>\n
\u4f8b\u5b50\uff1a 9) \u8bbe\u7f6e\u8fde\u63a5\u8d85\u65f6<\/strong><\/div>\n
nc<\/span> \u7684\u76d1\u542c\u6a21\u5f0f\u4f1a\u4e00\u76f4\u8fd0\u884c\uff0c\u76f4\u5230\u624b\u5de5\u7ec8\u6b62\u3002 \u4e0d\u8fc7\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u9009\u9879 -w<\/span> \u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4:<\/p>\n
$ ncat -w 10 192.168.1.100 8080\r\n<\/pre>\n
\u8fd9\u56de\u5bfc\u81f4\u8fde\u63a5 10 \u79d2\u540e\u7ec8\u6b62\uff0c\u4e0d\u8fc7\u8fd9\u4e2a\u9009\u9879\u53ea\u80fd\u7528\u4e8e\u5ba2\u6237\u7aef\u800c\u4e0d\u662f\u670d\u52a1\u7aef\u3002<\/p>\n
\u4f8b\u5b50\uff1a 10) \u4f7f\u7528 -k<\/span> \u9009\u9879\u5f3a\u5236 nc<\/span> \u5f85\u547d<\/strong><\/div>\n
\u5f53\u5ba2\u6237\u7aef\u4ece\u670d\u52a1\u7aef\u65ad\u5f00\u8fde\u63a5\u540e\uff0c\u8fc7\u4e00\u6bb5\u65f6\u95f4\u670d\u52a1\u7aef\u4e5f\u4f1a\u505c\u6b62\u76d1\u542c\u3002 \u4f46\u901a\u8fc7\u9009\u9879 -k<\/span> \u6211\u4eec\u53ef\u4ee5\u5f3a\u5236\u670d\u52a1\u5668\u4fdd\u6301\u8fde\u63a5\u5e76\u7ee7\u7eed\u76d1\u542c\u7aef\u53e3\u3002 \u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n
$ ncat -l -k 8080\r\n<\/pre>\n
\u73b0\u5728\u5373\u4f7f\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u65ad\u4e86\u4e5f\u4f9d\u7136\u4f1a\u5904\u4e8e\u5f85\u547d\u72b6\u6001\u3002<\/p>\n
\n
via: https:\/\/www.linuxtechi.com\/nc-ncat-command-examples-linux-systems\/<\/a><\/p>\n
\u4f5c\u8005\uff1a Pradeep Kumar<\/a>[1]<\/span> \u8bd1\u8005\uff1a lujun9972<\/a>[2]<\/span> \u6821\u5bf9\uff1a wxy<\/a>[3]<\/span><\/p>\n
\u672c\u6587\u7531 LCTT<\/a>[4]<\/span> \u539f\u521b\u7f16\u8bd1\uff0c Linux\u4e2d\u56fd<\/a>[5]<\/span> \u8363\u8a89\u63a8\u51fa<\/p>\n
\n
\u539f\u6587\u6765\u81ea\uff1a https:\/\/linux.cn\/article-9190-1.html<\/a><\/p>\n
\u672c\u6587\u5730\u5740\uff1a http:\/\/lrxjmw.cn\/nc-command-linux.html<\/a>\u7f16\u8f91\uff1a\u9004\u589e\u5b9d\uff0c\u5ba1\u6838\u5458\uff1a\u5218\u9044<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"
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