{"id":97444,"date":"2026-08-29T14:27:28","date_gmt":"2026-08-29T06:27:28","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/97444.html"},"modified":"2026-08-29T14:27:28","modified_gmt":"2026-08-29T06:27:28","slug":"%e6%96%b0%e6%89%8b%e5%8b%87%e9%97%af%e7%bd%91%e7%bb%9c%e5%ae%89%e5%85%a8-%e7%bd%91%e7%bb%9c%e9%80%9a%e4%bf%a1%e5%9f%ba%e7%a1%80%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/97444.html","title":{"rendered":"\u65b0\u624b\u52c7\u95ef\u7f51\u7edc\u5b89\u5168 | \u7f51\u7edc\u901a\u4fe1\u57fa\u7840\uff08\u4e8c\uff09"},"content":{"rendered":"

\u4e0a\u4e00\u7bc7\u6211\u4eec\u641e\u61c2\u4e86\u7f51\u7edc\u5206\u5c42\u6a21\u578b\u3001TCP \u8fde\u63a5\u548c IP \u5730\u5740\u3002\u8fd9\u4e00\u7bc7\u6df1\u5165\u5e94\u7528\u5c42\u548c\u7f51\u7edc\u5c42\u7684\u6838\u5fc3\u534f\u8bae\u2014\u2014DNS\u3001ICMP\u3001DHCP\u3001FTP\u3001SMB\u3001HTTP\/HTTPS，\u6bcf\u4e00\u4e2a\u90fd\u9644\u5e26\u771f\u5b9e\u653b\u51fb\u6848\u4f8b\u548c\u9632\u5fa1\u65b9\u6cd5\u3002\u770b\u5b8c\u4f60\u5c31\u80fd\u660e\u767d：\u4e3a\u4ec0\u4e48\u516c\u5171 Wi-Fi \u4e0b\u767b\u5f55 HTTP \u7f51\u7ad9\u7b49\u4e8e\u88f8\u5954，\u4e3a\u4ec0\u4e48 445 \u7aef\u53e3\u5f00\u7740\u53ef\u80fd\u88ab\u52d2\u7d22\u75c5\u6bd2\u52a0\u5bc6\u5168\u76d8\u3002<\/p>\n

\n

\u4e00\u3001DNS \u534f\u8bae：\u4e92\u8054\u7f51\u7684"\u7535\u8bdd\u7c3f"<\/h3>\n

1.1 \u57df\u540d\u662f\u4ec0\u4e48？<\/h4>\n

IP \u5730\u5740（\u5982 203.0.113.50）\u7531\u6570\u5b57\u7ec4\u6210，\u96be\u4ee5\u8bb0\u5fc6\u3002\u57df\u540d（\u5982 www.baidu.com）\u662f IP \u5730\u5740\u7684\u4eba\u6027\u5316\u522b\u540d，\u7531\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u7b26\u53f7\u7ec4\u6210，\u65b9\u4fbf\u7528\u6237\u8bbf\u95ee\u7f51\u7edc\u8d44\u6e90\u3002<\/p>\n

DNS（Domain Name System，\u57df\u540d\u7cfb\u7edf） \u5de5\u4f5c\u5728\u5e94\u7528\u5c42，\u6838\u5fc3\u4f5c\u7528\u662f\u5c06\u57df\u540d\u89e3\u6790\u4e3a IP \u5730\u5740（\u6b63\u5411\u89e3\u6790），\u4e5f\u652f\u6301 IP \u53cd\u67e5\u57df\u540d（\u53cd\u5411\u89e3\u6790）\u3002<\/p>\n

\u901a\u4fd7\u7406\u89e3：\u4e92\u8054\u7f51\u7684"\u7535\u8bdd\u7c3f"\u2014\u2014\u4f60\u8f93\u5165\u540d\u5b57（\u57df\u540d），\u5b83\u5e2e\u4f60\u627e\u5230\u5bf9\u5e94\u7684\u7535\u8bdd\u53f7\u7801（IP）\u3002<\/p>\n

1.2 \u57df\u540d\u5c42\u7ea7\u7ed3\u6784<\/h4>\n

\u57df\u540d\u91c7\u7528"\u5c42\u7ea7\u7ed3\u6784"，\u4ece\u53f3\u5230\u5de6\u5c42\u7ea7\u8d8a\u9ad8，\u6700\u9876\u5c42\u4e3a\u6839\u57df，\u6bcf\u4e2a\u5c42\u7ea7\u7528"\u70b9"\u5206\u9694\u3002\u4ee5 www.baidu.com \u4e3a\u4f8b：<\/p>\n\n\u5c42\u7ea7\u793a\u4f8b\u8bf4\u660e<\/tr>\n\n\n\n\n\n
\u6839\u57df<\/td>\n.（\u901a\u5e38\u7701\u7565）<\/td>\n\u6700\u9876\u5c42，\u5168\u7403 13 \u7ec4\u6839\u670d\u52a1\u5668，\u7531 ICANN \u7ba1\u7406<\/td>\n<\/tr>\n
\u9876\u7ea7\u57df（TLD）<\/td>\n.com<\/td>\n\u901a\u7528\u9876\u7ea7\u57df（.com\/.org\/.edu\/.gov）\u6216\u56fd\u5bb6\u9876\u7ea7\u57df（.cn\/.us\/.jp）<\/td>\n<\/tr>\n
\u4e8c\u7ea7\u57df<\/td>\nbaidu<\/td>\n\u4f01\u4e1a\/\u4e2a\u4eba\u5411\u6ce8\u518c\u5546\u7533\u8bf7\u7684\u6838\u5fc3\u57df\u540d，\u5177\u6709\u552f\u4e00\u6027<\/td>\n<\/tr>\n
\u5b50\u57df\u540d<\/td>\nwww<\/td>\n\u4e8c\u7ea7\u57df\u4e0b\u81ea\u5b9a\u4e49，\u5982 mail\u3001news，\u53ef\u65e0\u9650\u5c42\u7ea7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u6ce8：\u201c\u4e8c\u7ea7\u57df\u540d + \u9876\u7ea7\u57df\u540d\u201d（\u5982 baidu.com）\u4e5f\u5e38\u79f0\u4e3a\u4e3b\u57df\u540d\u3002\u6211\u56fd\u7684\u56fd\u5bb6\u9876\u7ea7\u57df\u662f .cn，\u7531 CNNIC \u7ba1\u7406\u3002<\/p>\n

1.3 DNS \u56db\u7c7b\u670d\u52a1\u5668<\/h4>\n

DNS \u91c7\u7528\u5206\u5e03\u5f0f\u67b6\u6784，\u5168\u7403\u6ca1\u6709\u552f\u4e00\u7684\u603b\u670d\u52a1\u5668，\u4f9d\u9760\u5c42\u7ea7\u5206\u660e\u7684\u56db\u7c7b\u670d\u52a1\u5668\u534f\u540c\u89e3\u6790：<\/p>\n\n\u670d\u52a1\u5668\u4f5c\u7528\u4e00\u53e5\u8bdd<\/tr>\n\n\n\n\n\n
\u6839\u670d\u52a1\u5668<\/td>\n\u4e0d\u89e3\u6790\u5177\u4f53\u57df\u540d，\u53ea\u8fd4\u56de\u9876\u7ea7\u57df\u670d\u52a1\u5668\u5730\u5740<\/td>\n\u9876\u5c42\u5165\u53e3，\u53ea\u6307\u8def\u4e0d\u5e26\u8def<\/td>\n<\/tr>\n
\u9876\u7ea7\u57df\u670d\u52a1\u5668<\/td>\n\u7ba1\u7406\u540c\u4e00\u540e\u7f00\u57df\u540d，\u5b9a\u4f4d\u6743\u5a01\u670d\u52a1\u5668<\/td>\n\u6309\u540e\u7f00\u5206\u7c7b\u7ba1\u7406<\/td>\n<\/tr>\n
\u6743\u5a01\u670d\u52a1\u5668<\/td>\n\u5b58\u653e\u57df\u540d\u4e0e IP \u7684\u771f\u5b9e\u6620\u5c04\u5173\u7cfb<\/td>\n\u6700\u7ec8\u7b54\u6848\u7684\u6765\u6e90<\/td>\n<\/tr>\n
\u672c\u5730 DNS \u670d\u52a1\u5668<\/td>\n\u76f4\u63a5\u9762\u5411\u7528\u6237，\u7531\u8fd0\u8425\u5546\/\u516c\u5171 DNS \u63d0\u4f9b<\/td>\n\u7528\u6237\u7684"\u7ffb\u8bd1\u5b98"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1.4 DNS \u7f13\u5b58\u673a\u5236<\/h4>\n

DNS \u7f13\u5b58\u662f\u72ec\u7acb\u4e8e\u56db\u5c42\u89e3\u6790\u67b6\u6784\u4e4b\u5916\u7684\u4e34\u65f6\u5b58\u50a8\u673a\u5236，\u628a\u8fc7\u5f80"\u57df\u540d\u5230 IP"\u7684\u89e3\u6790\u7ed3\u679c\u4e34\u65f6\u4fdd\u5b58，\u4e0b\u6b21\u8bbf\u95ee\u76f4\u63a5\u590d\u7528，\u5927\u5e45\u52a0\u5feb\u89e3\u6790\u901f\u5ea6\u3002<\/p>\n

\u4e24\u7ea7\u7f13\u5b58：<\/p>\n

    \n
  • \u7528\u6237\u672c\u673a\u7f13\u5b58：\u7535\u8111\/\u624b\u673a\u64cd\u4f5c\u7cfb\u7edf\u81ea\u5e26 DNS \u7f13\u5b58；\u8fd8\u53ef\u624b\u52a8\u914d\u7f6e\u672c\u5730\u9759\u6001\u57df\u540d\u6620\u5c04，\u5373 hosts \u6587\u4ef6（Windows \u8def\u5f84：C:\\\\Windows\\\\System32\\\\drivers\\\\etc\\\\hosts）<\/li>\n
  • \u672c\u5730 DNS \u670d\u52a1\u5668\u7f13\u5b58：\u8fd0\u8425\u5546 DNS\u3001\u516c\u5171 DNS \u670d\u52a1\u5668\u90fd\u81ea\u5e26\u7f13\u5b58<\/li>\n<\/ul>\n

    \u7f13\u5b58\u4f18\u5148\u7ea7：hosts \u6587\u4ef6 > \u672c\u673a\u7cfb\u7edf DNS \u7f13\u5b58 > \u672c\u5730 DNS \u670d\u52a1\u5668\u7f13\u5b58<\/p>\n

    \u6ce8\u610f：\u672c\u5730\u9759\u6001\u57df\u540d\u6620\u5c04（hosts \u6587\u4ef6）\u4f18\u5148\u7ea7\u6700\u9ad8\u3002\u653b\u51fb\u8005\u7be1\u6539 hosts \u6587\u4ef6\u53ef\u4ee5\u76f4\u63a5\u628a\u4f60\u5bfc\u5411\u9493\u9c7c\u7f51\u7ad9\u3002<\/p>\n

    1.5 \u5b8c\u6574\u89e3\u6790\u6d41\u7a0b<\/h4>\n

    \u4ee5\u7528\u6237\u5728\u6d4f\u89c8\u5668\u8f93\u5165 www.server.com \u4e3a\u4f8b：<\/p>\n

  • \u6d4f\u89c8\u5668\u5148\u67e5\u81ea\u8eab\u7f13\u5b58，\u6ca1\u6709\u5c31\u95ee\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58，\u518d\u67e5 hosts \u6587\u4ef6<\/li>\n
  • \u90fd\u6ca1\u6709，\u5c31\u5411\u672c\u5730 DNS \u670d\u52a1\u5668\u53d1\u8d77\u67e5\u8be2\u8bf7\u6c42<\/li>\n
  • \u672c\u5730 DNS \u67e5\u81ea\u8eab\u7f13\u5b58，\u6ca1\u6709\u5c31\u95ee\u6839\u670d\u52a1\u5668：\u201cwww.server.com \u7684 IP \u662f\u591a\u5c11？\u201d<\/li>\n
  • \u6839\u670d\u52a1\u5668\u8bf4：\u201c\u540e\u7f00\u662f .com，\u4f60\u53bb\u95ee .com \u9876\u7ea7\u57df\u670d\u52a1\u5668\u201d，\u8fd4\u56de\u9876\u7ea7\u57df\u670d\u52a1\u5668\u5730\u5740<\/li>\n
  • \u672c\u5730 DNS \u95ee\u9876\u7ea7\u57df\u670d\u52a1\u5668，\u5bf9\u65b9\u8fd4\u56de\u8d1f\u8d23 server.com \u7684\u6743\u5a01\u670d\u52a1\u5668\u5730\u5740<\/li>\n
  • \u672c\u5730 DNS \u95ee\u6743\u5a01\u670d\u52a1\u5668，\u5f97\u5230\u771f\u5b9e IP \u5730\u5740<\/li>\n
  • \u672c\u5730 DNS \u5c06 IP \u8fd4\u56de\u5ba2\u6237\u7aef，\u540c\u65f6\u7f13\u5b58\u7ed3\u679c<\/li>\n
  • \u5ba2\u6237\u7aef\u7528 IP \u8bbf\u95ee\u76ee\u6807\u7f51\u7ad9<\/li>\n

    \u6574\u4e2a\u8fc7\u7a0b\u5c31\u50cf\u627e\u4eba\u95ee\u8def\u2014\u2014\u53ea\u6307\u8def\u4e0d\u5e26\u8def，\u5c42\u5c42\u9012\u8fdb\u3002DNS \u89e3\u6790\u8fc7\u7a0b\u7f3a\u4e4f\u4e25\u683c\u7684\u8eab\u4efd\u8ba4\u8bc1，\u8fd9\u6b63\u662f DNS \u52ab\u6301\u548c\u6c61\u67d3\u7684\u653b\u51fb\u6839\u6e90\u3002<\/p>\n

    1.6 \u5b89\u5168\u98ce\u9669<\/h4>\n\n\u653b\u51fb\u7c7b\u578b\u539f\u7406\u540e\u679c<\/tr>\n\n\n\n
    DNS \u52ab\u6301<\/td>\n\u7be1\u6539\u672c\u5730 DNS \u7f13\u5b58\/\u8def\u7531\u5668 DNS \u8bbe\u7f6e，\u5c06\u57df\u540d\u89e3\u6790\u5230\u6076\u610f IP<\/td>\n\u7528\u6237\u8bbf\u95ee\u865a\u5047\u7f51\u7ad9，\u6cc4\u9732\u8d26\u53f7\u5bc6\u7801<\/td>\n<\/tr>\n
    DNS \u6c61\u67d3<\/td>\n\u5728\u7f51\u7edc\u94fe\u8def\u4e2d\u53d1\u9001\u865a\u5047 DNS \u54cd\u5e94\u5305，\u6bd4\u6b63\u5e38\u54cd\u5e94\u66f4\u65e9\u5230\u8fbe<\/td>\n\u7528\u6237\u88ab\u5f15\u5bfc\u5230\u9493\u9c7c\u7f51\u7ad9，\u96be\u4ee5\u5bdf\u89c9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u9632\u5fa1\u65b9\u6cd5：<\/p>\n

      \n
    • \u4f7f\u7528\u516c\u5171\u5b89\u5168 DNS：\u963f\u91cc DNS（223.5.5.5）\u3001\u8c37\u6b4c DNS（8.8.8.8）<\/li>\n
    • \u6e05\u9664\u672c\u5730 DNS \u7f13\u5b58：ipconfig \/flushdns（Windows）<\/li>\n
    • \u68c0\u67e5\u8def\u7531\u5668 DNS \u8bbe\u7f6e，\u4fee\u6539\u9ed8\u8ba4\u8d26\u53f7\u5bc6\u7801<\/li>\n
    • \u5f00\u542f\u52a0\u5bc6 DNS：DoH（DNS over HTTPS）\u6216 DoT（DNS over TLS）<\/li>\n<\/ul>\n
      \n

      \u4e8c\u3001ICMP \u534f\u8bae：\u7f51\u7edc\u7684"\u4f53\u68c0\u62a5\u544a"<\/h3>\n

      ICMP（Internet Control Message Protocol，\u4e92\u8054\u7f51\u63a7\u5236\u6d88\u606f\u534f\u8bae） \u5de5\u4f5c\u5728\u7f51\u7edc\u5c42，\u4e0d\u4f20\u8f93\u5e94\u7528\u6570\u636e，\u4ec5\u7528\u4e8e\u53cd\u9988\u7f51\u7edc\u901a\u4fe1\u72b6\u6001（\u8fde\u901a\u6027\u3001\u9519\u8bef\u63d0\u793a）\u3002<\/p>\n

      \u901a\u4fd7\u7406\u89e3：\u7f51\u7edc\u7684"\u4f53\u68c0\u62a5\u544a"，\u544a\u8bc9\u4f60\u8fde\u4e0d\u8fde\u5f97\u4e0a\u3001\u54ea\u91cc\u51fa\u95ee\u9898\u4e86\u3002<\/p>\n

      2.1 \u6838\u5fc3\u529f\u80fd<\/h4>\n\n\u529f\u80fd\u547d\u4ee4\u4f5c\u7528<\/tr>\n\n\n\n\n
      \u8fde\u901a\u6027\u68c0\u6d4b<\/td>\nping \u76ee\u6807<\/td>\n\u5224\u65ad\u76ee\u6807\u662f\u5426\u53ef\u8fbe，\u67e5\u770b\u5ef6\u8fdf\u548c\u4e22\u5305\u7387<\/td>\n<\/tr>\n
      \u8def\u7531\u8ffd\u8e2a<\/td>\ntracert（Windows）\/ traceroute（Linux）<\/td>\n\u8ffd\u8e2a\u6570\u636e\u4ece\u672c\u673a\u5230\u76ee\u6807\u7684\u8f6c\u53d1\u8def\u5f84<\/td>\n<\/tr>\n
      \u9519\u8bef\u63d0\u793a<\/td>\n\u81ea\u52a8\u8fd4\u56de<\/td>\n\u76ee\u6807\u4e0d\u53ef\u8fbe\u3001\u7aef\u53e3\u4e0d\u53ef\u8fbe\u3001TTL \u8d85\u65f6\u7b49<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      2.2 \u5b89\u5168\u98ce\u9669：ICMP \u6d2a\u6c34\u653b\u51fb<\/h4>\n

      \u653b\u51fb\u8005\u5411\u76ee\u6807\u53d1\u9001\u5927\u91cf ICMP Echo Request（ping \u5305），\u5360\u7528\u76ee\u6807 CPU \u548c\u5e26\u5bbd，\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1（DoS）\u3002<\/p>\n

      \u901a\u4fd7\u6bd4\u55bb：\u75af\u72c2\u6572\u95e8，\u8ba9\u95e8\u536b\u5fd9\u4e0d\u8fc7\u6765\u63a5\u5f85\u6b63\u5e38\u5ba2\u4eba\u3002<\/p>\n

      \u90e8\u5206\u670d\u52a1\u5668（\u5982\u767e\u5ea6\u3001\u6dd8\u5b9d）\u4f1a\u7981\u7528 ICMP \u54cd\u5e94（\u7981\u6b62 ping），\u9632\u6b62\u88ab\u626b\u63cf\u653b\u51fb\u3002ping \u4e0d\u901a\u4e0d\u4ee3\u8868\u8bbe\u5907\u4e0d\u80fd\u6b63\u5e38\u901a\u4fe1\u3002<\/p>\n

      \u9632\u5fa1\u65b9\u6cd5：\u9650\u5236 ICMP \u62a5\u6587\u901f\u7387\u3001\u7981\u7528\u4e0d\u5fc5\u8981\u7684 ICMP \u7c7b\u578b\u3001\u9632\u706b\u5899\u8fc7\u6ee4\u5916\u90e8 ping \u8bf7\u6c42\u3002<\/p>\n

      \n

      \u4e09\u3001DHCP \u534f\u8bae：\u81ea\u52a8\u5206\u914d"\u7f51\u7edc\u8eab\u4efd"<\/h3>\n

      DHCP（Dynamic Host Configuration Protocol，\u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae） \u5de5\u4f5c\u5728\u5e94\u7528\u5c42，\u57fa\u4e8e UDP \u4f20\u8f93\u3002\u6838\u5fc3\u4f5c\u7528\u662f\u4e3a\u5185\u7f51\u8bbe\u5907\u81ea\u52a8\u5206\u914d IP \u5730\u5740\u3001\u5b50\u7f51\u63a9\u7801\u3001\u7f51\u5173\u3001DNS \u7b49\u7f51\u7edc\u53c2\u6570\u3002<\/p>\n

      \u901a\u4fd7\u7406\u89e3：\u81ea\u52a8\u5206\u914d"\u7f51\u7edc\u8eab\u4efd"\u7684\u7cfb\u7edf，\u8bbe\u5907\u8fde Wi-Fi \u540e\u81ea\u52a8\u83b7\u53d6 IP，\u4e0d\u7528\u624b\u52a8\u914d\u7f6e\u3002<\/p>\n

      3.1 \u7aef\u53e3（\u5fc5\u8bb0）<\/h4>\n\n\u89d2\u8272\u7aef\u53e3<\/tr>\n\n\n\n
      DHCP \u670d\u52a1\u5668<\/td>\nUDP 67<\/td>\n<\/tr>\n
      DHCP \u5ba2\u6237\u7aef<\/td>\nUDP 68<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      3.2 DORA \u56db\u6b65\u63e1\u624b<\/h4>\n

      \u6781\u7b80\u53e3\u8bc0：D \u627e\u3001O \u7ed9\u3001R \u8981\u3001A \u6210\u3002<\/p>\n

      \u65b0\u8bbe\u5907\u521a\u5f00\u673a\u6ca1\u6709 IP，\u65e0\u6cd5\u5355\u64ad\u901a\u4fe1，\u6240\u4ee5\u524d\u4e24\u6b65\u5168\u90e8\u4f7f\u7528\u5e7f\u64ad（255.255.255.255）\u3002<\/p>\n\n\u6b65\u9aa4\u540d\u79f0\u65b9\u5411\u542b\u4e49<\/tr>\n\n\n\n\n\n
      1<\/td>\nDiscover<\/td>\n\u5ba2\u6237\u7aef -> \u5e7f\u64ad<\/td>\n\u201c\u6709\u6ca1\u6709 DHCP \u670d\u52a1\u5668？\u6211\u9700\u8981 IP！\u201d<\/td>\n<\/tr>\n
      2<\/td>\nOffer<\/td>\n\u670d\u52a1\u5668 -> \u5e7f\u64ad<\/td>\n\u201c\u6211\u53ef\u4ee5\u7ed9\u4f60\u8fd9\u4e2a IP，\u8981\u4e0d\u8981？\u201d<\/td>\n<\/tr>\n
      3<\/td>\nRequest<\/td>\n\u5ba2\u6237\u7aef -> \u5e7f\u64ad<\/td>\n\u201c\u6211\u786e\u5b9a\u7528\u4f60\u63d0\u4f9b\u7684 IP！\u201d<\/td>\n<\/tr>\n
      4<\/td>\nACK<\/td>\n\u670d\u52a1\u5668 -> \u5e7f\u64ad<\/td>\n\u201c\u786e\u8ba4\u5b8c\u6210，\u7ed9\u4f60\u5168\u90e8\u7f51\u7edc\u53c2\u6570！\u201d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      3.3 \u79df\u671f\u673a\u5236\u4e0e\u7f51\u7edc\u6392\u67e5<\/h4>\n

      IP \u4e0d\u662f\u6c38\u4e45\u5206\u914d，\u800c\u662f"\u79df\u501f"\u6a21\u5f0f\u3002\u79df\u671f 50% \u65f6\u7eed\u79df，87.5% \u7eed\u79df\u5931\u8d25\u5219\u91cd\u65b0\u7533\u8bf7，\u5230\u671f\u56de\u6536\u3002<\/p>\n

      \u4e0b\u56fe\u5c55\u793a\u4e86 DHCP \u79df\u7ea6\u5206\u914d\u3001\u5e38\u7528\u547d\u4ee4\u548c\u65e0\u6cd5\u4e0a\u7f51\u65f6\u7684\u4e09\u6b65\u6392\u67e5\u6d41\u7a0b：<\/p>\n

      \"DHCP<\/p>\n

      \u6392\u67e5\u4e09\u6b65\u8be6\u89e3：<\/p>\n

    • \n

      ipconfig \u67e5\u770b\u5f53\u524d IP<\/p>\n

        \n
      • \u5982\u679c\u662f 169.254.x.x（APIPA \u81ea\u52a8\u79c1\u6709\u5730\u5740），\u8bf4\u660e\u672a\u83b7\u53d6\u5230\u6709\u6548 IP，\u68c0\u67e5\u7f51\u7ebf\u6216 DHCP \u670d\u52a1<\/li>\n
      • \u5982\u679c\u662f 192.168.x.x \u7b49\u6b63\u5e38\u5730\u5740，\u8fdb\u5165\u7b2c\u4e8c\u6b65<\/li>\n<\/ul>\n<\/li>\n
      • \n

        ipconfig \/release + ipconfig \/renew<\/p>\n

          \n
        • \/release：\u4e3b\u52a8\u5f52\u8fd8 IP，\u7acb\u5373\u65ad\u7f51<\/li>\n
        • \/renew：\u91cd\u65b0\u7533\u8bf7 IP，\u83b7\u53d6\u65b0\u79df\u7ea6<\/li>\n<\/ul>\n<\/li>\n
        • \n

          \u5224\u65ad\u662f\u5426\u6210\u529f<\/p>\n

            \n
          • \u6210\u529f -> \u7f51\u7edc\u6062\u590d<\/li>\n
          • \u5931\u8d25\/\u5361\u4f4f -> DHCP \u65e0\u54cd\u5e94，\u68c0\u67e5 DHCP \u670d\u52a1\u6216 IP \u51b2\u7a81<\/li>\n<\/ul>\n<\/li>\n

            3.4 \u5b89\u5168\u98ce\u9669<\/h4>\n\n\u653b\u51fb\u7c7b\u578b\u539f\u7406\u540e\u679c<\/tr>\n\n\n\n
            DHCP \u9965\u997f\u653b\u51fb<\/td>\n\u4f2a\u9020\u5927\u91cf MAC \u5730\u5740\u75af\u72c2\u7533\u8bf7 IP，\u8017\u5c3d\u5730\u5740\u6c60<\/td>\n\u6b63\u5e38\u7528\u6237\u65e0\u6cd5\u83b7\u53d6 IP，\u65ad\u7f51<\/td>\n<\/tr>\n
            \u4f2a\u9020 DHCP \u670d\u52a1\u5668<\/td>\n\u5185\u7f51\u642d\u5efa\u5047 DHCP \u670d\u52a1\u5668，\u4f18\u5148\u56de\u590d，\u4e0b\u53d1\u865a\u5047\u7f51\u5173\u548c DNS<\/td>\n\u5168\u7f51\u6d41\u91cf\u88ab\u52ab\u6301\u3001\u8d26\u53f7\u5bc6\u7801\u88ab\u6293<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            \u9632\u5fa1\u65b9\u6848：\u4ea4\u6362\u673a\u5f00\u542f DHCP Snooping（\u53ea\u4fe1\u4efb\u5408\u6cd5 DHCP \u7aef\u53e3）\u3001\u6838\u5fc3\u8bbe\u5907\u9759\u6001\u7ed1\u5b9a IP-MAC\u3001\u9650\u5236\u5730\u5740\u6c60\u6700\u5927\u79df\u8d41\u6570\u91cf\u3002<\/p>\n

            \n

            \u56db\u3001FTP \u534f\u8bae：\u660e\u6587\u4f20\u8f93\u7684"\u5feb\u9012\u7cfb\u7edf"<\/h3>\n

            FTP（File Transfer Protocol，\u6587\u4ef6\u4f20\u8f93\u534f\u8bae） \u5de5\u4f5c\u5728\u5e94\u7528\u5c42，\u57fa\u4e8e TCP，\u91c7\u7528\u53cc\u7aef\u53e3\u673a\u5236，\u4e13\u95e8\u7528\u4e8e\u6587\u4ef6\u4e0a\u4f20\u3001\u4e0b\u8f7d\u3001\u5220\u9664\u7b49\u64cd\u4f5c\u3002<\/p>\n

            \u901a\u4fd7\u7406\u89e3：\u4e92\u8054\u7f51\u7684"\u5feb\u9012\u7cfb\u7edf"，\u4e13\u95e8\u642c\u8fd0\u6587\u4ef6\u3002<\/p>\n

            4.1 \u53cc\u7aef\u53e3\u673a\u5236<\/h4>\n\n\u7aef\u53e3\u7528\u9014\u8fde\u63a5\u7c7b\u578b<\/tr>\n\n\n\n
            21<\/td>\n\u63a7\u5236\u8fde\u63a5（\u4f20\u8f93\u6307\u4ee4：\u767b\u5f55\u3001\u5207\u6362\u76ee\u5f55\u3001\u4e0b\u8f7d\u547d\u4ee4）<\/td>\n\u6301\u4e45\u8fde\u63a5<\/td>\n<\/tr>\n
            20<\/td>\n\u6570\u636e\u8fde\u63a5（\u4f20\u8f93\u6587\u4ef6\u672c\u4f53）<\/td>\n\u4e34\u65f6\u8fde\u63a5，\u4f20\u5b8c\u5373\u65ad<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            21 \u7aef\u53e3\u4f20\u547d\u4ee4，20 \u7aef\u53e3\u4f20\u6587\u4ef6，\u5206\u5de5\u660e\u786e，\u4e0d\u80fd\u6df7\u7528\u3002<\/p>\n

            4.2 \u4e24\u79cd\u5de5\u4f5c\u6a21\u5f0f<\/h4>\n\n\u6a21\u5f0f\u6570\u636e\u8fde\u63a5\u53d1\u8d77\u65b9\u7279\u70b9<\/tr>\n\n\n\n
            \u4e3b\u52a8\u6a21\u5f0f（PORT）<\/td>\n\u5ba2\u6237\u7aef -> \u670d\u52a1\u5668 20 \u7aef\u53e3<\/td>\n\u5ba2\u6237\u7aef\u9632\u706b\u5899\u6613\u62e6\u622a<\/td>\n<\/tr>\n
            \u88ab\u52a8\u6a21\u5f0f（PASV）<\/td>\n\u5ba2\u6237\u7aef -> \u670d\u52a1\u5668\u968f\u673a\u9ad8\u7aef\u7aef\u53e3<\/td>\n\u9002\u914d\u73b0\u4ee3\u7f51\u7edc\u73af\u5883，\u9ed8\u8ba4\u4f7f\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            4.3 \u5b89\u5168\u98ce\u9669<\/h4>\n

            FTP \u7684\u6838\u5fc3\u95ee\u9898：\u5168\u7a0b\u660e\u6587\u4f20\u8f93，\u8d26\u53f7\u3001\u5bc6\u7801\u3001\u6587\u4ef6\u5185\u5bb9\u5747\u65e0\u52a0\u5bc6，\u6293\u5305\u5373\u53ef\u76f4\u63a5\u7a83\u53d6\u3002<\/p>\n\n\u98ce\u9669\u8bf4\u660e<\/tr>\n\n\n\n\n
            \u660e\u6587\u6293\u5305\u6cc4\u9732<\/td>\n\u6293\u5305\u5de5\u5177\u76f4\u63a5\u622a\u53d6\u8d26\u53f7\u5bc6\u7801\u548c\u6587\u4ef6\u6570\u636e<\/td>\n<\/tr>\n
            \u66b4\u529b\u7834\u89e3<\/td>\n\u9488\u5bf9 21 \u7aef\u53e3\u6279\u91cf\u7206\u7834\u8d26\u53f7\u5bc6\u7801<\/td>\n<\/tr>\n
            \u6076\u610f\u6587\u4ef6\u4e0a\u4f20<\/td>\n\u5229\u7528\u4e0a\u4f20\u6f0f\u6d1e\u690d\u5165\u6728\u9a6c\u3001\u75c5\u6bd2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            4.4 \u5b89\u5168\u66ff\u4ee3\u65b9\u6848<\/h4>\n\n\u534f\u8bae\u7279\u70b9<\/tr>\n\n\n\n
            FTPS<\/td>\nFTP + SSL\/TLS \u52a0\u5bc6<\/td>\n<\/tr>\n
            SFTP<\/td>\n\u57fa\u4e8e SSH \u52a0\u5bc6\u4f20\u8f93，\u9ed8\u8ba4\u7aef\u53e3 22，\u5b89\u5168\u6027\u66f4\u9ad8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            \u901a\u4fd7\u7406\u89e3：\u7ed9 FTP \u52a0\u4e2a\u4fdd\u9669\u7bb1\u3002<\/p>\n

            \n

            \u4e94\u3001SMB \u534f\u8bae：Windows \u5171\u4eab\u7684"\u9ad8\u5371\u5165\u53e3"<\/h3>\n

            SMB（Server Message Block，\u670d\u52a1\u5668\u6d88\u606f\u5757\u534f\u8bae） \u5de5\u4f5c\u5728\u5e94\u7528\u5c42，\u4e3b\u6253 Windows \u5c40\u57df\u7f51\u751f\u6001，\u7528\u4e8e\u6587\u4ef6\u5171\u4eab\u3001\u6253\u5370\u673a\u5171\u4eab\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u3002<\/p>\n

            \u901a\u4fd7\u7406\u89e3：Windows \u7535\u8111\u4e4b\u95f4"\u5171\u4eab\u6587\u4ef6\u5939"\u7684\u5e95\u5c42\u534f\u8bae\u3002<\/p>\n

            \u9ed8\u8ba4\u7aef\u53e3：TCP 445（\u73b0\u4ee3\u7248\u672c），\u65e9\u671f\u7248\u672c\u4f7f\u7528 139\u3002<\/p>\n

            5.1 \u5b89\u5168\u98ce\u9669<\/h4>\n\n\u98ce\u9669\u8bf4\u660e<\/tr>\n\n\n\n\n
            \u6c38\u6052\u4e4b\u84dd\u6f0f\u6d1e<\/td>\n\u9488\u5bf9 445 \u7aef\u53e3，\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c，\u65e0\u9700\u8d26\u53f7\u5bc6\u7801<\/td>\n<\/tr>\n
            \u7aef\u53e3\u626b\u63cf\u653b\u51fb<\/td>\n445 \u7aef\u53e3\u66b4\u9732\u516c\u7f51，\u88ab\u626b\u63cf\u63a2\u6d4b\u3001\u66b4\u529b\u7834\u89e3<\/td>\n<\/tr>\n
            \u5c40\u57df\u7f51\u6a2a\u5411\u6e17\u900f<\/td>\n\u63a7\u5236\u4e00\u53f0\u5185\u7f51\u7535\u8111\u540e，\u5229\u7528 SMB \u6f0f\u6d1e\u6e17\u900f\u6574\u4e2a\u5185\u7f51<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            5.2 \u6c38\u6052\u4e4b\u84dd（MS17-010）<\/h4>\n

            SMB \u534f\u8bae\u7684\u9ad8\u5371\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e，\u653b\u51fb\u8005\u65e0\u9700\u8d26\u53f7\u5bc6\u7801\u5373\u53ef\u901a\u8fc7 445 \u7aef\u53e3\u5165\u4fb5\u7535\u8111，\u690d\u5165\u52d2\u7d22\u75c5\u6bd2\u3002<\/p>\n

            \u901a\u4fd7\u7406\u89e3：Windows \u7684\u4e00\u4e2a"\u8d85\u7ea7\u6f0f\u6d1e"，\u653b\u51fb\u8005\u4e0d\u9700\u8981\u5bc6\u7801\u5c31\u80fd\u76f4\u63a5\u63a7\u5236\u4f60\u7684\u7535\u8111\u3002<\/p>\n

            5.3 \u771f\u5b9e\u6848\u4f8b：WannaCry \u52d2\u7d22\u75c5\u6bd2\u5168\u7403\u7206\u53d1<\/h4>\n

            2017 \u5e74 5 \u6708，WannaCry \u52d2\u7d22\u75c5\u6bd2\u5229\u7528 SMB \u534f\u8bae\u7684\u6c38\u6052\u4e4b\u84dd\u6f0f\u6d1e（MS17-010）\u5168\u7403\u7206\u53d1，72 \u5c0f\u65f6\u5185\u611f\u67d3 150 \u591a\u4e2a\u56fd\u5bb6\u300130 \u591a\u4e07\u53f0\u7535\u8111，\u52a0\u5bc6\u6587\u4ef6\u5e76\u7d22\u8981\u6bd4\u7279\u5e01\u8d4e\u91d1\u3002\u82f1\u56fd NHS \u533b\u7597\u7cfb\u7edf\u762b\u75ea，\u5927\u91cf\u624b\u672f\u88ab\u8feb\u53d6\u6d88\u3002<\/p>\n

            \u653b\u51fb\u94fe\u6761：445 \u7aef\u53e3\u66b4\u9732 -> \u626b\u63cf\u53d1\u73b0 SMB \u6f0f\u6d1e -> \u5229\u7528\u6c38\u6052\u4e4b\u84dd\u6267\u884c\u8fdc\u7a0b\u4ee3\u7801 -> \u690d\u5165\u52d2\u7d22\u75c5\u6bd2 -> \u52a0\u5bc6\u6587\u4ef6 -> \u7d22\u8981\u8d4e\u91d1<\/p>\n

            \u6838\u5fc3\u6559\u8bad：\u5173\u95ed\u4e0d\u5fc5\u8981\u7684\u7aef\u53e3\u548c\u670d\u52a1，\u53ca\u65f6\u66f4\u65b0\u7cfb\u7edf\u8865\u4e01\u3002<\/p>\n

            5.4 \u9632\u5fa1\u65b9\u6cd5<\/h4>\n
              \n
            • \u5173\u95ed SMB 1.0 \u8001\u65e7\u7248\u672c<\/li>\n
            • \u9632\u706b\u5899\u5c01\u7981 445 \u548c 139 \u7aef\u53e3，\u4e25\u7981\u5bf9\u516c\u7f51\u5f00\u653e<\/li>\n
            • \u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u8865\u4e01<\/li>\n
            • \u5173\u95ed\u4e0d\u5fc5\u8981\u7684\u6587\u4ef6\u5171\u4eab<\/li>\n<\/ul>\n

              \u867d\u7136\u6c38\u6052\u4e4b\u84dd\u4e3b\u8981\u5f71\u54cd\u65e7\u7cfb\u7edf，\u4f46 SMB \u534f\u8bae\u6301\u7eed\u5b58\u5728\u65b0\u6f0f\u6d1e，\u4efb\u4f55\u65f6\u5019\u90fd\u8981\u4fdd\u6301\u8865\u4e01\u66f4\u65b0\u3002<\/p>\n

              \n

              \u516d\u3001HTTP \u4e0e HTTPS：\u660e\u4fe1\u7247 vs \u52a0\u5bc6\u4fe1\u5c01<\/h3>\n

              6.1 \u57fa\u672c\u6982\u5ff5<\/h4>\n

              HTTP（HyperText Transfer Protocol，\u8d85\u6587\u672c\u4f20\u8f93\u534f\u8bae） \u5de5\u4f5c\u5728\u5e94\u7528\u5c42，\u57fa\u4e8e TCP，\u662f\u7f51\u9875\u6d4f\u89c8\u3001\u63a5\u53e3\u8bf7\u6c42\u7684\u6838\u5fc3\u534f\u8bae\u3002\u9ed8\u8ba4\u7aef\u53e3 80\u3002<\/p>\n

              \u901a\u4fd7\u7406\u89e3：\u6d4f\u89c8\u5668\u548c\u7f51\u7ad9\u4e4b\u95f4\u7684"\u660e\u4fe1\u7247"\u2014\u2014\u5185\u5bb9\u5168\u90e8\u53ef\u89c1，\u8c01\u90fd\u80fd\u770b\u3002<\/p>\n

              HTTPS：HTTP + SSL\/TLS \u52a0\u5bc6，\u662f HTTP \u7684\u5b89\u5168\u5347\u7ea7\u7248\u3002\u9ed8\u8ba4\u7aef\u53e3 443\u3002<\/p>\n

              \u901a\u4fd7\u7406\u89e3：\u6d4f\u89c8\u5668\u548c\u7f51\u7ad9\u4e4b\u95f4\u7684"\u52a0\u5bc6\u4fe1\u5c01"\u2014\u2014\u5185\u5bb9\u52a0\u5bc6，\u53ea\u6709\u6536\u53d1\u53cc\u65b9\u80fd\u770b\u3002<\/p>\n

              6.2 \u6838\u5fc3\u5bf9\u6bd4<\/h4>\n\n\u5bf9\u6bd4\u7ef4\u5ea6HTTPHTTPS<\/tr>\n\n\n\n\n\n\n
              \u9ed8\u8ba4\u7aef\u53e3<\/td>\n80<\/td>\n443<\/td>\n<\/tr>\n
              \u4f20\u8f93\u65b9\u5f0f<\/td>\n\u660e\u6587\u88f8\u5954，\u65e0\u52a0\u5bc6<\/td>\nSSL\/TLS \u52a0\u5bc6，\u6293\u5305\u53ea\u80fd\u770b\u5230\u4e71\u7801<\/td>\n<\/tr>\n
              \u8eab\u4efd\u8ba4\u8bc1<\/td>\n\u65e0<\/td>\n\u901a\u8fc7\u6570\u5b57\u8bc1\u4e66\u9a8c\u8bc1\u7f51\u7ad9\u771f\u5b9e\u8eab\u4efd<\/td>\n<\/tr>\n
              \u6570\u636e\u5b8c\u6574\u6027<\/td>\n\u65e0\u4fdd\u969c，\u53ef\u88ab\u7be1\u6539<\/td>\n\u4f20\u8f93\u8fc7\u7a0b\u65e0\u6cd5\u7be1\u6539<\/td>\n<\/tr>\n
              \u5b89\u5168\u6027<\/td>\n\u6781\u4f4e，\u6613\u88ab\u6293\u5305\u3001\u52ab\u6301<\/td>\n\u9ad8，\u9632\u7a83\u542c\u3001\u9632\u7be1\u6539\u3001\u9632\u9493\u9c7c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              HTTPS \u4e0d\u53ea\u662f HTTP \u52a0\u4e86\u4e2a S，\u800c\u662f\u901a\u8fc7 SSL\/TLS \u5b9e\u73b0\u4e86\u52a0\u5bc6\u4f20\u8f93\u3001\u8eab\u4efd\u8ba4\u8bc1\u3001\u6570\u636e\u5b8c\u6574\u6027\u4e09\u91cd\u4fdd\u62a4\u3002<\/p>\n

              6.3 HTTP \u5e38\u7528\u8bf7\u6c42\u65b9\u6cd5<\/h4>\n\n\u65b9\u6cd5\u4f5c\u7528\u7279\u70b9<\/tr>\n\n\n\n\n\n
              GET<\/td>\n\u4ece\u670d\u52a1\u5668\u83b7\u53d6\u6570\u636e<\/td>\n\u53c2\u6570\u66b4\u9732\u5728 URL \u4e2d<\/td>\n<\/tr>\n
              POST<\/td>\n\u5411\u670d\u52a1\u5668\u63d0\u4ea4\u6570\u636e（\u767b\u5f55\u3001\u6ce8\u518c）<\/td>\n\u53c2\u6570\u5728\u8bf7\u6c42\u4f53\u4e2d<\/td>\n<\/tr>\n
              PUT\/DELETE<\/td>\n\u6587\u4ef6\u4fee\u6539\u3001\u5220\u9664<\/td>\n\u63a5\u53e3\u5f00\u53d1\u5e38\u7528<\/td>\n<\/tr>\n
              HEAD<\/td>\n\u53ea\u83b7\u53d6\u54cd\u5e94\u5934，\u4e0d\u83b7\u53d6\u9875\u9762\u5185\u5bb9<\/td>\n\u68c0\u67e5\u8d44\u6e90\u662f\u5426\u5b58\u5728<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              6.4 HTTP \u5b89\u5168\u98ce\u9669<\/h4>\n\n\u98ce\u9669\u8bf4\u660e<\/tr>\n\n\n\n\n
              \u660e\u6587\u6293\u5305<\/td>\n\u4e2d\u95f4\u4eba\u901a\u8fc7 Wireshark \u76f4\u63a5\u6293\u53d6\u8d26\u53f7\u5bc6\u7801<\/td>\n<\/tr>\n
              HTTP \u52ab\u6301<\/td>\n\u8fd0\u8425\u5546\/\u653b\u51fb\u8005\u7be1\u6539\u9875\u9762\u5185\u5bb9，\u63d2\u5165\u5e7f\u544a\u3001\u8df3\u8f6c\u9493\u9c7c\u7ad9<\/td>\n<\/tr>\n
              \u4e2d\u95f4\u4eba\u653b\u51fb<\/td>\n\u65e0\u72b6\u6001\u65e0\u8eab\u4efd\u6821\u9a8c，\u6613\u906d\u9047\u4e2d\u95f4\u4eba\u653b\u51fb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \u771f\u5b9e\u6848\u4f8b：\u67d0\u7f51\u7ad9\u4f7f\u7528 HTTP \u534f\u8bae\u4f20\u8f93\u767b\u5f55\u4fe1\u606f，\u7528\u6237\u901a\u8fc7\u516c\u5171 Wi-Fi \u767b\u5f55\u65f6，\u653b\u51fb\u8005\u5728\u540c\u4e00\u7f51\u7edc\u5185\u4f7f\u7528 Wireshark \u6293\u5305，\u76f4\u63a5\u4ece HTTP \u62a5\u6587\u4e2d\u63d0\u53d6\u5230\u8d26\u53f7\u548c\u660e\u6587\u5bc6\u7801\u3002<\/p>\n

              \u6839\u672c\u539f\u56e0：HTTP \u5168\u7a0b\u660e\u6587\u4f20\u8f93，\u65e0\u4efb\u4f55\u52a0\u5bc6\u3002\u4efb\u4f55\u5904\u4e8e\u540c\u4e00\u7f51\u7edc\u7684\u4eba，\u90fd\u53ef\u4ee5\u901a\u8fc7\u6293\u5305\u5de5\u5177\u770b\u5230\u4f20\u8f93\u5185\u5bb9\u3002<\/p>\n

              \u89e3\u51b3\u65b9\u6848：\u7f51\u7ad9\u5347\u7ea7\u4e3a HTTPS，\u6240\u6709\u767b\u5f55\u3001\u652f\u4ed8\u9875\u9762\u5f3a\u5236\u4f7f\u7528 HTTPS \u52a0\u5bc6\u4f20\u8f93\u3002<\/p>\n

              \n

              \u4e03\u3001Wireshark \u6293\u5305\u5b9e\u6218：\u7a7f\u900f\u7f51\u7edc\u9ed1\u76d2<\/h3>\n

              Wireshark \u662f\u4e00\u6b3e\u5f00\u6e90\u6293\u5305\u5de5\u5177，\u4e5f\u88ab\u79f0\u4e3a\u7f51\u7edc\u55c5\u63a2\u5668，\u7528\u4e8e\u5206\u6790\u7f51\u7edc\u6d41\u91cf\u548c\u6570\u636e\u5305\u3002\u5b83\u80fd\u5c06\u62bd\u8c61\u7684\u7f51\u7edc\u7406\u8bba\u8f6c\u5316\u4e3a\u53ef\u89c2\u6d4b\u3001\u53ef\u5206\u6790\u7684\u5b9e\u6218\u6280\u80fd\u3002<\/p>\n

              7.1 \u4e24\u79cd\u8fc7\u6ee4\u5668<\/h4>\n\n\u5bf9\u6bd4\u7ef4\u5ea6\u6293\u5305\u8fc7\u6ee4\u5668（Capture）\u663e\u793a\u8fc7\u6ee4\u5668（Display）<\/tr>\n\n\n\n\n
              \u751f\u6548\u65f6\u673a<\/td>\n\u6293\u5305\u5f00\u59cb\u524d，\u51b3\u5b9a"\u5f55\u4e0d\u5f55"<\/td>\n\u6293\u5305\u7ed3\u675f\u540e，\u51b3\u5b9a"\u663e\u4e0d\u663e"<\/td>\n<\/tr>\n
              \u6d41\u91cf\u5904\u7406\u903b\u8f91<\/td>\n\u4e0d\u7b26\u5408\u6761\u4ef6\u76f4\u63a5\u4e22\u5f03，\u4e0d\u5199\u5165\u6587\u4ef6<\/td>\n\u5168\u90e8\u6293\u53d6\u5e76\u4fdd\u5b58，\u4ec5\u5728\u754c\u9762\u4e0a\u9690\u85cf<\/td>\n<\/tr>\n
              \u6838\u5fc3\u9002\u7528\u573a\u666f<\/td>\n\u9ad8\u8d1f\u8f7d\u7f51\u7edc\u73af\u5883，\u51cf\u5c11\u65e5\u5fd7\u4f53\u79ef<\/td>\n\u65e5\u5e38\u6545\u969c\u6392\u67e5\u3001\u534f\u8bae\u5206\u6790\u3001\u6d41\u91cf\u5b66\u4e60<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \u5e38\u7528\u793a\u4f8b：<\/p>\n

                \n
              • \u6293\u5305\u8fc7\u6ee4\u5668：tcp port 80（\u53ea\u6293 HTTP）\u3001host 192.168.1.100（\u53ea\u6293\u76ee\u6807 IP）<\/li>\n
              • \u663e\u793a\u8fc7\u6ee4\u5668：http（\u53ea\u770b HTTP \u5305）\u3001ip.src == 192.168.1.100（\u6309\u6e90 IP \u8fc7\u6ee4）<\/li>\n<\/ul>\n

                7.2 \u660e\u6587\u534f\u8bae\u6293\u5305\u6f14\u793a<\/h4>\n

                \u6355\u83b7 FTP \u660e\u6587\u8d26\u53f7\u5bc6\u7801：<\/p>\n

                  \n
                • \u573a\u666f：\u4f7f\u7528\u6807\u51c6 FTP \u5ba2\u6237\u7aef\u8fde\u63a5\u5e76\u767b\u5f55\u670d\u52a1\u5668<\/li>\n
                • \u64cd\u4f5c：\u5728 Wireshark \u8bbe\u7f6e\u663e\u793a\u8fc7\u6ee4\u5668\u4e3a ftp \u8fdb\u884c\u7b5b\u9009<\/li>\n
                • \u7ed3\u679c：\u5728 USER \u548c PASS \u547d\u4ee4\u5bf9\u5e94\u7684\u6570\u636e\u5305\u4e2d，\u8d26\u53f7\u5bc6\u7801\u6e05\u6670\u53ef\u89c1<\/li>\n<\/ul>\n

                  \u6355\u83b7 Telnet \u660e\u6587\u64cd\u4f5c\u6570\u636e：<\/p>\n

                    \n
                  • \u573a\u666f：\u901a\u8fc7 Telnet \u534f\u8bae\u8fdc\u7a0b\u767b\u5f55\u670d\u52a1\u5668\u8fdb\u884c\u7ba1\u7406\u64cd\u4f5c<\/li>\n
                  • \u64cd\u4f5c：\u8bbe\u7f6e\u8fc7\u6ee4\u5668\u4e3a tcp.port == 23 \u8ffd\u8e2a TCP \u6d41<\/li>\n
                  • \u7ed3\u679c：\u767b\u5f55\u51ed\u636e\u53ca\u540e\u7eed\u8f93\u5165\u7684\u6240\u6709\u64cd\u4f5c\u547d\u4ee4，\u5168\u7a0b\u4ee5\u660e\u6587\u5f62\u5f0f\u4f20\u8f93<\/li>\n<\/ul>\n

                    \u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48 FTP\u3001Telnet \u7b49\u660e\u6587\u534f\u8bae\u5728\u5b89\u5168\u9886\u57df\u88ab\u5f3a\u70c8\u5f03\u7528\u2014\u2014\u6293\u5305\u5de5\u5177\u4e0b，\u4f60\u7684\u5bc6\u7801\u5c31\u662f\u4e00\u884c\u660e\u6587\u3002<\/p>\n

                    \n

                    \u516b\u3001\u77e5\u8bc6\u5c0f\u7ed3<\/h3>\n\n\u77e5\u8bc6\u6a21\u5757\u6838\u5fc3\u5185\u5bb9\u4e00\u53e5\u8bdd\u901f\u8bb0<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                    DNS<\/td>\n\u57df\u540d\u5230 IP \u7684\u89e3\u6790\u7cfb\u7edf，\u56db\u7c7b\u670d\u52a1\u5668\u534f\u540c\u5de5\u4f5c<\/td>\n\u4e92\u8054\u7f51\u7684"\u7535\u8bdd\u7c3f"<\/td>\n<\/tr>\n
                    DNS \u89e3\u6790\u6d41\u7a0b<\/td>\n\u7f13\u5b58 -> \u672c\u5730 -> \u6839 -> \u9876\u7ea7 -> \u6743\u5a01 -> \u8fd4\u56de<\/td>\n\u5c42\u5c42\u9012\u8fdb，\u53ea\u6307\u8def\u4e0d\u5e26\u8def<\/td>\n<\/tr>\n
                    DNS \u52ab\u6301<\/td>\n\u7be1\u6539 DNS \u7f13\u5b58\/\u8def\u7531\u5668\u8bbe\u7f6e，\u5f15\u5bfc\u5230\u6076\u610f IP<\/td>\n\u7535\u8bdd\u7c3f\u88ab\u6539\u4e86，\u6253\u7ed9\u4e86\u9a97\u5b50<\/td>\n<\/tr>\n
                    DNS \u6c61\u67d3<\/td>\n\u7f51\u7edc\u94fe\u8def\u4e2d\u62a2\u5148\u53d1\u9001\u865a\u5047\u89e3\u6790\u54cd\u5e94<\/td>\n\u6bd4\u771f\u8bdd\u5148\u5230\u7684\u5047\u8bdd<\/td>\n<\/tr>\n
                    ICMP<\/td>\n\u7f51\u7edc\u8fde\u901a\u6027\u68c0\u6d4b，ping\/tracert<\/td>\n\u7f51\u7edc\u7684"\u4f53\u68c0\u62a5\u544a"<\/td>\n<\/tr>\n
                    DHCP<\/td>\n\u81ea\u52a8\u5206\u914d IP\/\u7f51\u5173\/DNS，\u7aef\u53e3 67\/68<\/td>\nD \u627e\u3001O \u7ed9\u3001R \u8981\u3001A \u6210<\/td>\n<\/tr>\n
                    FTP<\/td>\n\u6587\u4ef6\u4f20\u8f93，\u53cc\u7aef\u53e3 21(\u63a7\u5236)\/20(\u6570\u636e)<\/td>\n\u660e\u6587\u4f20\u6587\u4ef6，\u5bc6\u7801\u88f8\u5954<\/td>\n<\/tr>\n
                    FTPS\/SFTP<\/td>\nFTP \u7684\u52a0\u5bc6\u66ff\u4ee3\u65b9\u6848<\/td>\n\u7ed9 FTP \u52a0\u4e2a\u4fdd\u9669\u7bb1<\/td>\n<\/tr>\n
                    SMB<\/td>\nWindows \u6587\u4ef6\u5171\u4eab，445 \u7aef\u53e3<\/td>\n\u5171\u4eab\u6587\u4ef6\u5939\u7684\u5e95\u5c42\u534f\u8bae<\/td>\n<\/tr>\n
                    \u6c38\u6052\u4e4b\u84dd<\/td>\nSMB \u7684\u9ad8\u5371 RCE \u6f0f\u6d1e（MS17-010）<\/td>\n\u65e0\u5bc6\u7801\u5c31\u80fd\u63a7\u5236\u4f60\u7684\u7535\u8111<\/td>\n<\/tr>\n
                    HTTP<\/td>\n\u660e\u6587\u4f20\u8f93，\u7aef\u53e3 80，\u65e0\u52a0\u5bc6<\/td>\n\u660e\u4fe1\u7247，\u8c01\u90fd\u80fd\u770b<\/td>\n<\/tr>\n
                    HTTPS<\/td>\nSSL\/TLS \u52a0\u5bc6，\u7aef\u53e3 443，\u6709\u8bc1\u4e66\u9a8c\u8bc1<\/td>\n\u52a0\u5bc6\u4fe1\u5c01，\u53ea\u6709\u6536\u53d1\u53cc\u65b9\u80fd\u770b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                    \n

                    \u4e5d\u3001\u6613\u9519\u70b9\u8fa8\u6790<\/h3>\n\n\u5e38\u89c1\u9519\u8bef\u8ba4\u77e5\u6b63\u786e\u7406\u89e3<\/tr>\n\n\n\n\n\n\n\n
                    \u201cDNS \u53ea\u6709\u4e00\u53f0\u603b\u670d\u52a1\u5668\u201d<\/td>\nDNS \u662f\u5206\u5e03\u5f0f\u67b6\u6784，\u5206\u4e3a\u6839\u3001\u9876\u7ea7\u57df\u3001\u6743\u5a01\u3001\u672c\u5730 DNS \u56db\u7c7b\u670d\u52a1\u5668\u534f\u540c\u5de5\u4f5c<\/td>\n<\/tr>\n
                    \u201cping \u4e0d\u901a\u5c31\u662f\u7f51\u7edc\u65ad\u4e86\u201d<\/td>\n\u5f88\u591a\u670d\u52a1\u5668\u4f1a\u7981\u7528 ICMP \u54cd\u5e94\u6765\u63d0\u9ad8\u5b89\u5168\u6027，ping \u4e0d\u901a\u4e0d\u4ee3\u8868\u8bbe\u5907\u4e0d\u80fd\u901a\u4fe1<\/td>\n<\/tr>\n
                    \u201cFTP \u4e24\u4e2a\u7aef\u53e3\u968f\u4fbf\u7528\u54ea\u4e2a\u201d<\/td>\n21 \u7aef\u53e3\u4f20\u547d\u4ee4，20 \u7aef\u53e3\u4f20\u6587\u4ef6，\u5206\u5de5\u660e\u786e，\u4e0d\u80fd\u6df7\u7528<\/td>\n<\/tr>\n
                    \u201cHTTPS \u53ea\u662f HTTP \u52a0\u4e0a S\u201d<\/td>\nHTTPS \u901a\u8fc7 SSL\/TLS \u5b9e\u73b0\u4e86\u52a0\u5bc6\u4f20\u8f93\u3001\u8eab\u4efd\u8ba4\u8bc1\u3001\u6570\u636e\u5b8c\u6574\u6027\u4e09\u91cd\u4fdd\u62a4<\/td>\n<\/tr>\n
                    \u201cSMB \u6f0f\u6d1e\u53ea\u5f71\u54cd\u65e7\u7cfb\u7edf\u201d<\/td>\nSMB \u534f\u8bae\u6301\u7eed\u5b58\u5728\u65b0\u6f0f\u6d1e，\u4efb\u4f55\u65f6\u5019\u90fd\u8981\u4fdd\u6301\u8865\u4e01\u66f4\u65b0<\/td>\n<\/tr>\n
                    \u201cDHCP \u5206\u914d IP \u662f\u6c38\u4e45\u7684\u201d<\/td>\nDHCP \u662f\u79df\u501f\u6a21\u5f0f，\u6709\u79df\u671f\u9650\u5236，\u5230\u671f\u9700\u7eed\u79df，\u5426\u5219 IP \u88ab\u56de\u6536<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

                    \u4e0a\u4e00\u7bc7\u6211\u4eec\u641e\u61c2\u4e86\u7f51\u7edc\u5206\u5c42\u6a21\u578b\u3001TCP \u8fde\u63a5\u548c IP \u5730\u5740\u3002\u8fd9\u4e00\u7bc7\u6df1\u5165\u5e94\u7528\u5c42\u548c\u7f51\u7edc\u5c42\u7684\u6838\u5fc3\u534f\u8bae\u2014\u2014DNS\u3001ICMP\u3001DHCP\u3001FTP\u3001SMB\u3001HTTP\/HTTPS，\u6bcf\u4e00\u4e2a\u90fd\u9644\u5e26\u771f\u5b9e\u653b\u51fb\u6848\u4f8b\u548c\u9632\u5fa1\u65b9\u6cd5\u3002\u770b\u5b8c\u4f60\u5c31\u80fd\u660e\u767d：\u4e3a\u4ec0\u4e48\u516c\u5171 Wi-Fi \u4e0b\u767b\u5f55 HTTP \u7f51\u7ad9\u7b49\u4e8e\u88f8\u5954，\u4e3a\u4ec0\u4e48 445 \u7aef\u53e3\u5f00\u7740\u53ef\u80fd\u88ab\u52d2\u7d22\u75c5\u6bd2\u52a0\u5bc6\u5168\u76d8\u3002\u4e00\u3001DNS \u534f\u8bae：\u4e92\u8054\u7f51\u7684\\”\u7535\u8bdd\u7c3f\\”
                    \n1.1 \u57df\u540d\u662f\u4ec0\u4e48？
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