\n \u4e00\u65e6\u5feb\u53d6\u88ab\u6c59\u67d3\uff0c\u4f60\u5149\u9bae\u4eae\u9e97\u3001\u90e8\u7f72\u5728\u7f8e\u570b\u7684\u57fa\u790e\u8a2d\u65bd\u5c31\u5931\u53bb\u4e86\u610f\u7fa9\uff1b\u4f7f\u7528\u8005\u53ef\u80fd\u88ab\u8def\u7531\u5230\u53e6\u4e00\u500b\u6cd5\u57df\u7684\u8907\u88fd\u7ad9\u9ede\uff0c\u653b\u64ca\u8005\u53ef\u4ee5\u900f\u904e\u6feb\u7528 ACME \u6216\u7c21\u55ae\u7684\u793e\u4ea4\u5de5\u7a0b\u624b\u6bb5\u53d6\u5f97 TLS \u6191\u8b49\u3002\u65e5\u8a8c\u770b\u8d77\u4f86\u300c\u57fa\u672c\u6b63\u5e38\u300d\uff0c\u76e3\u63a7\u6307\u6a19\u4e5f\u5728\u986f\u793a\u6709\u6d41\u91cf\uff0c\u4f46\u771f\u6b63\u63d0\u4f9b\u670d\u52d9\u7684\u537b\u662f\u932f\u8aa4\u7684\u4f3a\u670d\u5668\u3002\n <\/p>\n<\/li>\n<\/ul>\n

4. TXID\uff1a\u5b88\u8b77\u4f60\u7b54\u6848\u7684 16 \u4f4d\u6b04\u4f4d<\/strong><\/h2>\n<\/h2>\n

\n
• \n

  \n \u6bd4\u5c0d\u67e5\u8a62\u548c\u56de\u61c9\u7684\u6838\u5fc3\u662f DNS \u5c01\u5305\u6a19\u982d\u4e2d\u7684\u4ea4\u6613 ID\uff08TXID\uff09\uff0c\u9019\u662f\u4e00\u500b 16 \u4f4d\u6b04\u4f4d\u3002\u7576\u89e3\u6790\u5668\u767c\u51fa\u67e5\u8a62\u6642\uff0c\u5b83\u6703\u8a2d\u5b9a\u4e00\u500b TXID\uff1b\u7576\u56de\u61c9\u5230\u9054\u6642\uff0c\u89e3\u6790\u5668\u53ea\u9700\u6aa2\u67e5\u8a72\u56de\u61c9\u4e2d\u7684\u4ea4\u6613 ID \u662f\u5426\u8207\u76ee\u524d\u5728\u9014\u67e5\u8a62\u4e2d\u7684\u67d0\u500b ID \u76f8\u7b26\u3002\u5982\u679c\u76f8\u7b26\uff0c\u4e26\u4e14\u82e5\u5e72\u5176\u4ed6\u65d7\u6a19\u4f4d\u4e5f\u5c0d\u5f97\u4e0a\uff0c\u9019\u500b\u56de\u61c9\u5c31\u6703\u88ab\u63a5\u53d7\u4e26\u53ef\u80fd\u5beb\u5165\u5feb\u53d6\u3002\n <\/p>\n<\/li>\n

• \n

  \n \u65e9\u671f\u7684\u901a\u8a0a\u5354\u5b9a\u5806\u758a\u6703\u4f7f\u7528\u975e\u5e38\u7c21\u55ae\u3001\u53ef\u9810\u6e2c\u7684 TXID \u5e8f\u5217\uff1a\u8a08\u6578\u5668\u3001\u6216\u50c5\u5728\u7cfb\u7d71\u555f\u52d5\u6642\u64ad\u7a2e\u7684\u5e73\u5eb8\u507d\u96a8\u6a5f\u6578\u7522\u751f\u5668\uff08PRNG\uff09\u3002\u5c0d\u4e00\u500b\u4e0d\u5728\u8def\u5f91\u4e0a\u7684\u653b\u64ca\u8005\u4f86\u8aaa\uff0c\u552f\u4e00\u7684\u300c\u7955\u5bc6\u300d\u5c31\u662f\u9019 16 \u4f4d\u503c\u3002\u641c\u5c0b\u7a7a\u9593\u6700\u591a\u4e5f\u5c31\u662f 65,536 \u7a2e\u53ef\u80fd\u3002\u4ee5\u7576\u4eca\u7684\u983b\u5bec\u6c34\u6e96\uff0c\u7aae\u8209\u9019\u4e00\u7a7a\u9593\u4e26\u4e0d\u760b\u72c2\uff1a\u4e00\u500b\u6709\u4e0d\u932f\u4e0a\u884c\u983b\u5bec\u7684\u5927\u5b78\u751f\uff0c\u53ea\u8981\u914d\u5408\u4e00\u6bb5\u8ff4\u5708\u50b3\u9001\u507d\u9020\u5c01\u5305\u7684\u6307\u4ee4\u78bc\uff0c\u5c31\u53ef\u4ee5\u5728\u4e00\u500b\u9031\u672b\u5b8c\u6210\u9019\u7a2e\u653b\u64ca\u3002\n <\/p>\n<\/li>\n

• \n

  \n \u4f7f\u7528\u5177\u5bc6\u78bc\u5b78\u610f\u7fa9\u66f4\u5f37\u7684 TXID \u9078\u64c7\u6f14\u7b97\u6cd5\u6703\u62ac\u9ad8\u9580\u6abb\uff1a\u6bcf\u4e00\u500b\u5728\u9014\u67e5\u8a62\u90fd\u5118\u91cf\u4ee5\u96e3\u4ee5\u9810\u6e2c\u7684\u65b9\u5f0f\u53bb\u53d6\u6a23\u9019 16 \u4f4d\uff0c\u5373\u4fbf\u653b\u64ca\u8005\u80fd\u5920\u770b\u5230\u6b77\u53f2\u7684\u4ea4\u6613 ID\uff0c\u4e5f\u5f88\u96e3\u63a8\u5c0e\u51fa\u4e0b\u4e00\u500b\u3002\u7136\u800c\uff0c\u50c5\u9760 16 \u4f4d\u672c\u8eab\u4ecd\u7136\u6709\u9650\u3002\u771f\u6b63\u7684\u9632\u8b77\u63d0\u5347\u51fa\u73fe\u5728\u89e3\u6790\u5668\u540c\u6642\u9084\u5c0d\u4f86\u6e90\u57e0\u9032\u884c\u96a8\u6a5f\u5316\u6642\u3002\n <\/p>\n<\/li>\n<\/ul>\n

  5. UDP \u4f86\u6e90\u57e0\uff1a\u7955\u5bc6\u7684\u53e6\u4e00\u534a<\/strong><\/h2>\n<\/h2>\n

  \n
  • \n

    \n \u9810\u8a2d\u60c5\u6cc1\u4e0b\uff0cDNS \u5728\u4f3a\u670d\u5668\u7aef\u4f7f\u7528 UDP 53 \u57e0\uff0c\u4f46\u5728\u5ba2\u6236\u7aef\uff08\u4e5f\u5c31\u662f\u4f60\u7684\u905e\u8ff4\u89e3\u6790\u5668\uff09\u4e00\u5074\uff0c\u4f5c\u70ba\u4f86\u6e90\u57e0\u5e7e\u4e4e\u53ef\u4ee5\u9078\u64c7\u4efb\u610f\u66ab\u7528\u57e0\u3002\u9019\u500b\u4f86\u6e90\u57e0\u8207 TXID \u4e00\u8d77\u69cb\u6210\u4e86\u89e3\u6790\u5668\u7528\u4f86\u5c07\u56de\u61c9\u95dc\u806f\u5230\u67e5\u8a62\u7684\u96b1\u542b\u5143\u7d44\u7684\u4e00\u90e8\u5206\u3002\u7136\u800c\uff0c\u591a\u5e74\u4f86\u4e0d\u5c11\u5be6\u4f5c\u91cd\u8907\u4f7f\u7528\u56fa\u5b9a\u4f86\u6e90\u57e0\uff0c\u6216\u8005\u50c5\u5728\u5f88\u5c0f\u7684\u57e0\u7bc4\u570d\u5167\u5faa\u74b0\u3002\n <\/p>\n<\/li>\n

  • \n

    \n \u5982\u679c\u4f86\u6e90\u57e0\u662f\u56fa\u5b9a\u7684\uff0c\u653b\u64ca\u8005\u53ea\u9700\u5c0d TXID \u505a\u66b4\u529b\u7aae\u8209\u5373\u53ef\u3002\u5982\u679c TXID \u548c\u57e0\u90fd\u5728\u5b8c\u6574\u7684 16 \u4f4d\u7a7a\u9593\u5167\u96a8\u6a5f\u5316\uff0c\u90a3\u9ebc\u653b\u64ca\u8005\u5be6\u969b\u4e0a\u9700\u8981\u5728\u6bcf\u6b21\u5617\u8a66\u4e2d\u731c\u5c0d\u5927\u7d04 32 \u4f4d\u71b5\u3002\u641c\u5c0b\u7a7a\u9593\u7d04\u70ba 43 \u5104\u7a2e\u53ef\u80fd\uff0c\u9019\u6703\u5728\u6839\u672c\u4e0a\u6539\u8b8a\u653b\u64ca\u7684\u300c\u7d93\u6fdf\u5b78\u300d\uff1a\u5f9e\u8173\u672c\u5c0f\u5b50\u96a8\u624b\u53ef\u70ba\u7684\u653b\u64ca\uff0c\u8b8a\u6210\u66f4\u63a5\u8fd1\u570b\u5bb6\u7d1a\u8cc7\u6e90\u624d\u6703\u95dc\u5fc3\u7684\u5c08\u6848\u3002\n <\/p>\n<\/li>\n

  • \n

    \n \u696d\u754c\u901a\u5e38\u628a\u9019\u7a2e\u884c\u70ba\u7a31\u70ba\u300c\u4f86\u6e90\u57e0\u96a8\u6a5f\u5316\u300d\u3002\u8a31\u591a\u901a\u8a0a\u5354\u5b9a\u5806\u758a\u5728\u96a8\u6a5f\u6027\u3001\u57e0\u8017\u76e1\u3001NAT \u884c\u70ba\u4ee5\u53ca\u9632\u706b\u7246\u9650\u5236\u4e4b\u9593\u9032\u884c\u6298\u8877\u3002\u5728\u4f4d\u65bc\u8907\u96dc\u908a\u7de3\u9632\u706b\u7246\u4e4b\u5f8c\u7684\u7f8e\u570b\u4f3a\u670d\u5668\u60c5\u5883\u4e0b\uff0c\u4f60\u9700\u8981\u78ba\u8a8d\u9019\u7a2e\u96a8\u6a5f\u6027\u5728\u50b3\u8f38\u8def\u5f91\u4e0a\u6c92\u6709\u88ab\u7834\u58de\uff0c\u800c\u4e0d\u662f\u88ab\u90a3\u4e9b\u7a4d\u6975\u6539\u5beb\u57e0\u865f\u7684\u4e2d\u9593\u76d2\u7121\u610f\u4e2d\u62b9\u5e73\u3002\n <\/p>\n<\/li>\n<\/ul>\n

    6. \u4e0d\u5e36\u7cca\u5f04\u7684\u71b5\u6578\u5b78<\/strong><\/h2>\n<\/h2>\n

    \n
    • \n

      \n \u6211\u5011\u5efa\u6a21\u4e00\u500b\u4e0d\u5728\u8def\u5f91\u4e0a\u7684\u653b\u64ca\u8005\uff1a\u5b83\u7121\u6cd5\u770b\u5230\u771f\u5be6\u5c01\u5305\uff0c\u4f46\u53ef\u4ee5\u507d\u9020\u4f86\u6e90 IP \u70ba\u67d0\u6b0a\u5a01 DNS \u4f3a\u670d\u5668\u7684 UDP \u5c01\u5305\u3002\u5b83\u7684\u76ee\u6a19\u662f\u69cb\u9020\u4e00\u500b\u6703\u88ab\u4f60\u7684\u89e3\u6790\u5668\u63a5\u53d7\u7684\u56de\u61c9\uff0c\u7528\u4f86\u5339\u914d\u67d0\u500b\u55ae\u4e00\u7684\u5728\u9014\u67e5\u8a62\u3002\u5b83\u9700\u8981\u540c\u6642\u731c\u5c0d\u591a\u9805\u5167\u5bb9\uff1a\u76ee\u7684 IP \u548c\u57e0\uff08\u5df2\u77e5\uff09\u3001\u67e5\u8a62\u7684\u7db2\u57df\u540d\u7a31\u548c\u578b\u5225\uff08\u5f80\u5f80\u53ef\u4ee5\u731c\u6e2c\u6216\u8a98\u5c0e\uff09\uff0c\u518d\u52a0\u4e0a TXID \u548c\u4f86\u6e90\u57e0\uff08\u771f\u6b63\u7684\u7955\u5bc6\uff09\u3002\n <\/p>\n<\/li>\n

    • \n

      \n \u5728\u4f86\u6e90\u57e0\u53ef\u9810\u6e2c\u7684\u60c5\u6cc1\u4e0b\uff0c\u71b5\u7684\u4e0a\u9650\u5c31\u662f TXID \u7684\u5927\u7d04 16 \u4f4d\u3002\u5047\u8a2d\u653b\u64ca\u8005\u6709\u4e0d\u932f\u7684\u983b\u5bec\uff0c\u800c\u89e3\u6790\u5668\u5c0d\u55ae\u4e00\u67e5\u8a62\u4fdd\u6301\u7684\u672a\u5b8c\u6210\u8996\u7a97\u53c8\u8db3\u5920\u9577\uff0c\u90a3\u9ebc\u4e00\u500b\u898f\u6a21\u5c1a\u53ef\u7684\u6bad\u5c4d\u7db2\u8def\u6bcf\u79d2\u9418\u5674\u5c04\u6578\u767e\u842c\u500b\u507d\u9020\u56de\u61c9\u662f\u53ef\u884c\u7684\u3002\u547d\u4e2d\u6a5f\u7387\u4e26\u4e0d\u5c0f\u3002\u4e00\u65e6\u4f60\u628a\u4f86\u6e90\u57e0\u771f\u6b63\u96a8\u6a5f\u5316\u5230\u8f03\u5bec\u7684\u66ab\u7528\u57e0\u7bc4\u570d\uff0c\u5c31\u7b49\u65bc\u518d\u589e\u52a0\u4e86\u63a5\u8fd1 16 \u4f4d\u7684\u71b5\u3002\u5169\u8005\u71b5\u76f8\u4e58\uff0c\u76f8\u7576\u65bc\u7d04 32 \u4f4d\u7684\u96a8\u6a5f\u6027\uff0c\u5c07\u6bcf\u500b\u507d\u9020\u56de\u61c9\u7684\u6210\u529f\u6a5f\u7387\u518d\u58d3\u4f4e 65,536 \u500d\u3002\n <\/p>\n<\/li>\n

    • \n

      \n \u9019\u807d\u8d77\u4f86\u4e5f\u8a31\u4e0d\u7b97\u300c\u5929\u7ffb\u5730\u8986\u300d\uff0c\u4f46\u5b83\u628a\u6700\u57fa\u790e\u7684\u5feb\u53d6\u6c59\u67d3\u653b\u64ca\u5f9e\u300c\u9031\u4e8c\u4e0b\u5348\u5c31\u80fd\u5be6\u6230\u300d\u7684\u7bc4\u7587\uff0c\u63a8\u5230\u4e86\u5fc5\u9808\u8207\u5176\u4ed6\u5f80\u5f80\u66f4\u7c21\u55ae\u7684\u624b\u6bb5\u7af6\u722d\u7684\u5c64\u9762\uff1a\u6bd4\u5982\u653b\u9677\u7d42\u7aef\u3001\u767c\u52d5 BGP \u52ab\u6301\uff0c\u6216\u8005\u5b8c\u5168\u7e5e\u904e DNS \u7684\u7db2\u8def\u91e3\u9b5a\u6d3b\u52d5\u3002\n <\/p>\n<\/li>\n<\/ul>\n

      7. \u5de5\u7a0b\u5e2b\u771f\u6b63\u95dc\u5fc3\u7684\u5be6\u4f5c\u7d30\u7bc0<\/strong><\/h2>\n<\/h2>\n

      \n
      • \n

        \n \u73fe\u4ee3\u89e3\u6790\u5668\u5982 BIND\u3001Unbound \u548c Knot DNS \u901a\u5e38\u5728\u9810\u8a2d\u8a2d\u5b9a\u4e2d\u5c31\u555f\u7528\u4e86 TXID \u548c\u4f86\u6e90\u57e0\u96a8\u6a5f\u5316\u3002\u4f46\u9810\u8a2d\u503c\u7684\u5f37\u5ea6\u53d6\u6c7a\u65bc\u57f7\u884c\u74b0\u5883\u3002\u5728\u7f8e\u570b\u672c\u571f\u7684\u4f3a\u670d\u5668\u79df\u7528\u6216\u4f3a\u670d\u5668\u8a17\u7ba1\u5e73\u53f0\u4e0a\uff0c\u89e3\u6790\u5668\u5f80\u5f80\u90e8\u7f72\u5728\u591a\u5c64 NAT\u3001\u71df\u904b\u7d1a NAT\uff08CGNAT\uff09\u6216\u5177\u72c0\u614b\u9632\u706b\u7246\u4e4b\u5f8c\u3002\u6bcf\u4e00\u5c64\u90fd\u53ef\u80fd\u56e0\u70ba\u57e0\u91cd\u5beb\u3001\u9023\u7dda\u8ffd\u8e64\u6216\u7b56\u7565\u63a7\u5236\u800c\u7121\u610f\u4e2d\u6536\u7dca\u57e0\u71b5\u3002\n <\/p>\n<\/li>\n

      • \n

        \n \u5982\u679c\u4f60\u5728\u7f8e\u570b\u8cc7\u6599\u4e2d\u5fc3\u81ea\u5efa\u905e\u8ff4\u89e3\u6790\u5668\uff0c\u4f60\u61c9\u7576\uff1a\n <\/p>\n

        \n
        1. \n

           \n \u9a57\u8b49\u89e3\u6790\u5668\u70ba TXID \u4f7f\u7528\u7684\u662f\u73fe\u4ee3 PRNG\uff0c\u4e26\u4e14\u4f7f\u7528\u4e86\u8db3\u5920\u7684\u7cfb\u7d71\u71b5\u64ad\u7a2e\uff0c\u800c\u4e0d\u662f\u7dda\u6027\u540c\u9918\u7522\u751f\u5668\u6216\u7c21\u55ae\u7684\u6642\u9593\u6233\u884d\u751f\u65b9\u6848\u3002\n <\/p>\n<\/li>\n

        2. \n

           \n \u78ba\u8a8d UDP \u4f86\u6e90\u57e0\u662f\u5f9e\u5bec\u6cdb\u7684\u66ab\u7528\u57e0\u5340\u9593\u4e2d\u9078\u53d6\u7684\u3002\u4e00\u4e9b\u7cfb\u7d71\u5141\u8a31\u4f60\u900f\u904e\u6838\u5fc3\u53c3\u6578\u3001\u66ab\u7528\u57e0\u7bc4\u570d\u8a2d\u5b9a\u6216\u89e3\u6790\u5668\u672c\u8eab\u7684\u8a2d\u5b9a\u9805\u4f86\u8abf\u6821\u6b64\u4e00\u884c\u70ba\u3002\n <\/p>\n<\/li>\n

        3. \n

           \n \u9032\u884c\u7aef\u5230\u7aef\u6e2c\u8a66\uff1a\u5f9e\u9632\u706b\u7246\u5916\u570d\u5411\u89e3\u6790\u5668\u767c\u8d77\u67e5\u8a62\uff0c\u4e26\u89c0\u5bdf\u56de\u7a0b\u6d41\u91cf\u4e2d\u7684\u57e0\u865f\u662f\u5982\u4f55\u5206\u4f48\u7684\uff0c\u4ee5\u4e86\u89e3\u5728 NAT \u91cd\u5beb\u4e4b\u5f8c\u5be6\u969b\u751f\u6548\u7684\u57e0\u6a21\u5f0f\u3002\n <\/p>\n<\/li>\n<\/ol>\n<\/li>\n

        4. \n

           \n \u50cf\u5c0d\u5f85\u5bc6\u78bc\u5957\u4ef6\u8a2d\u5b9a\u90a3\u6a23\u5c0d\u5f85\u9019\u4e9b\u53c3\u6578\uff1a\u4e0d\u8981\u4ee5\u70ba\u300c\u6700\u65b0\u7248\u672c\u300d\u5c31\u7b49\u65bc\u300c\u5b89\u5168\u8a2d\u5b9a\u300d\u3002\u89e3\u6790\u5668\u8207\u7db2\u969b\u7db2\u8def\u4e4b\u9593\u7684\u6bcf\u4e00\u5c64\u62bd\u8c61\uff0c\u90fd\u53ef\u80fd\u5728\u4f60\u6beb\u4e0d\u77e5\u60c5\u7684\u60c5\u6cc1\u4e0b\u4fb5\u8755\u4f60\u81ea\u4ee5\u70ba\u64c1\u6709\u7684\u96a8\u6a5f\u6027\u3002\n <\/p>\n<\/li>\n<\/ul>\n

           8. \u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528 \/ \u4f3a\u670d\u5668\u8a17\u7ba1\u62d3\u64b2\uff1aDNS \u7a76\u7adf\u90e8\u7f72\u5728\u54ea\u88e1<\/strong><\/h2>\n<\/h2>\n

           \n
           • \n

             \n \u5728\u5178\u578b\u7684\u7f8e\u570b\u8cc7\u6599\u4e2d\u5fc3\u7db2\u8def\u8a2d\u8a08\u4e2d\uff0c\u4f60\u901a\u5e38\u6703\u9047\u5230\u81f3\u5c11\u4e09\u500b DNS \u5c64\u7d1a\uff1a\u7531\u670d\u52d9\u4f9b\u61c9\u5546\u7dad\u8b77\u7684\u908a\u7de3\u905e\u8ff4\u89e3\u6790\u5668\u3001\u8cbc\u8fd1\u61c9\u7528\u7bc0\u9ede\u57f7\u884c\u7684\u79c1\u6709\u89e3\u6790\u5668\uff0c\u4ee5\u53ca\u70ba\u4f60\u7684\u7db2\u57df\u540d\u7a31\u6b0a\u5a01\u56de\u7b54\u7684\u6b0a\u5a01 DNS \u4f3a\u670d\u5668\u3002\u6bcf\u4e00\u5c64\u5c0d TXID \u548c\u57e0\u71b5\u7684\u4f9d\u8cf4\u90fd\u4e0d\u540c\uff0c\u4e5f\u6703\u53d7\u5230\u8def\u7531\u3001\u7db2\u8def\u4e92\u806f\u4ee5\u53ca\u6297 DoS \u5c64\u7684\u5f71\u97ff\u3002\n <\/p>\n<\/li>\n

           • \n

             \n \u5728\u4f3a\u670d\u5668\u79df\u7528\u60c5\u5883\u4e2d\uff0c\u4f60\u53ef\u80fd\u6703\u5c07\u4f9b\u61c9\u5546\u7684\u905e\u8ff4\u89e3\u6790\u670d\u52d9\u4f5c\u70ba\u8a17\u7ba1\u670d\u52d9\u4f86\u6d88\u8cbb\u3002\u9019\u7c21\u5316\u4e86\u7dad\u904b\uff0c\u4f46\u4e5f\u8b93\u4f60\u5931\u53bb\u4e86\u5c0d\u5177\u9ad4\u8a2d\u5b9a\u7684\u53ef\u898b\u6027\u3002\u5728\u4f3a\u670d\u5668\u8a17\u7ba1\u74b0\u5883\u4e2d\uff0c\u5718\u968a\u901a\u5e38\u6703\u90e8\u7f72\u5c08\u7528 DNS \u8a2d\u5099\u6216\u865b\u64ec\u6a5f\uff0c\u81ea\u884c\u638c\u63a7\u5f9e\u6838\u5fc3\u5230\u89e3\u6790\u5668\u5b88\u8b77\u884c\u7a0b\u7684\u5168\u90e8\u5806\u758a\u3002\u5f8c\u4e00\u7a2e\u6a21\u5f0f\u8ce6\u4e88\u4e86\u4f60\u66f4\u5927\u7684\u63a7\u5236\u6b0a\uff0c\u540c\u6642\u4e5f\u610f\u5473\u8457\u66f4\u591a\u8cac\u4efb\u2014\u2014\u5982\u679c\u4f60\u7684\u89e3\u6790\u5668\u4ecd\u7136\u4f7f\u7528\u72f9\u7a84\u7684\u57e0\u7bc4\u570d\uff0c\u5c31\u4e0d\u80fd\u628a\u934b\u7529\u7d66\u670d\u52d9\u4f9b\u61c9\u5546\u3002\n <\/p>\n<\/li>\n

           • \n

             \n \u5728\u8a55\u4f30\u670d\u52d9\u4f9b\u61c9\u5546\u6642\uff0c\u8981\u554f\u4e00\u4e9b\u5177\u9ad4\u554f\u984c\uff1a\u6bcf\u500b\u5730\u5340\u6709\u591a\u5c11\u905e\u8ff4\u7bc0\u9ede\u3001\u4f7f\u7528\u4e86\u4ec0\u9ebc\u6a23\u7684\u96a8\u6a5f\u5316\u7b56\u7565\u3001\u8edf\u9ad4\u591a\u4e45\u5957\u7528\u4e00\u6b21\u4fee\u88dc\u7a0b\u5f0f\u3001\u4ee5\u53ca\u70ba\u5075\u6e2c\u7570\u5e38 NXDOMAIN \u6216\u7b54\u6848\u6a21\u5f0f\uff08\u9019\u53ef\u80fd\u4ee3\u8868\u6709\u4eba\u5617\u8a66\u91dd\u5c0d\u7f8e\u570b\u5ba2\u6236\u5be6\u65bd\u5feb\u53d6\u6c59\u67d3\uff09\u5efa\u7acb\u4e86\u600e\u6a23\u7684\u76e3\u63a7\u3002\n <\/p>\n<\/li>\n<\/ul>\n

             9. \u7f8e\u570b\u4f3a\u670d\u5668 DNS \u52a0\u56fa\u6e05\u55ae<\/strong><\/h2>\n<\/h2>\n

             \n
             • \n

               \n \u4f60\u4e0d\u9700\u8981\u5bc6\u78bc\u5b78\u535a\u58eb\u5b78\u4f4d\uff0c\u4e5f\u80fd\u986f\u8457\u964d\u4f4e DNS \u98a8\u96aa\u3002\u4e00\u4efd\u52d9\u5be6\u7684\u6e05\u55ae\uff0c\u4e00\u65e6\u61c9\u7528\u5230\u9760\u8fd1\u4f60\u7f8e\u570b\u57fa\u790e\u8a2d\u65bd\u7684\u89e3\u6790\u5668\u4e0a\uff0c\u5c31\u80fd\u5927\u5e45\u62ac\u9ad8\u653b\u64ca\u9580\u6abb\uff1a\n <\/p>\n

               \n
               • \n

                 \n \u57f7\u884c\u7576\u524d\u7248\u672c\u7684\u89e3\u6790\u5668\u8edf\u9ad4\u3002<\/strong> \u904e\u671f\u7684 BIND \u6216 Unbound \u7248\u672c\u5f80\u5f80\u540c\u6642\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u8207\u8f03\u5f31\u7684\u96a8\u6a5f\u5316\u884c\u70ba\u3002\u8b93\u5b83\u5011\u8207\u5ee0\u5546\u652f\u63f4\u9031\u671f\u4fdd\u6301\u540c\u6b65\u3002\n <\/p>\n<\/li>\n

               • \n

                 \n \u555f\u7528\u4e26\u9a57\u8b49 TXID \u548c\u57e0\u96a8\u6a5f\u5316\u3002<\/strong> \u4e0d\u8981\u53ea\u4fe1\u5b98\u65b9\u6587\u4ef6\uff1b\u5f9e\u4f60\u7684\u7db2\u8def\u5916\u90e8\u64f7\u53d6\u5c01\u5305\uff0c\u5206\u6790 ID \u548c\u57e0\u7684\u5206\u4f48\u3002\n <\/p>\n<\/li>\n

               • \n

                 \n \u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8f49\u905e\u93c8\u3002<\/strong> \u6bcf\u591a\u4e00\u8df3\u8f49\u905e\u7bc0\u9ede\uff0c\u5c31\u591a\u4e00\u500b\u53ef\u80fd\u524a\u5f31\u71b5\u7684\u9ede\u3002\u512a\u5148\u9078\u64c7\u76f4\u63a5\u5411\u7db2\u969b\u7db2\u8def\u57f7\u884c\u5b8c\u6574\u905e\u8ff4\u67e5\u8a62\u7684\u89e3\u6790\u5668\uff0c\u800c\u4e0d\u662f\u5c64\u5c64\u8f49\u905e\u3002\n <\/p>\n<\/li>\n

               • \n

                 \n \u8070\u660e\u5730\u52a0\u56fa\u9632\u706b\u7246\u3002<\/strong> \u5141\u8a31 DNS \u5c0d\u5916\u67e5\u8a62\u4f7f\u7528\u5bec\u6cdb\u7684\u66ab\u7528\u57e0\u7bc4\u570d\uff0c\u800c\u4e0d\u662f\u70ba\u4e86\u300c\u6574\u9f4a\u300d\u5f37\u884c\u898f\u5b9a\u55ae\u4e00\u56fa\u5b9a\u4f86\u6e90\u57e0\u3002\n <\/p>\n<\/li>\n

               • \n

                 \n \u5c0d\u7570\u5e38\u9032\u884c\u65e5\u8a8c\u8a18\u9304\u8207\u544a\u8b66\u3002<\/strong> NXDOMAIN \u6bd4\u4f8b\u7570\u5e38\u6fc0\u589e\u3001\u7b54\u6848 TTL \u610f\u5916\u8b8a\u5316\u3001\u6216\u4e0a\u6e38\u6b0a\u5a01\u4f3a\u670d\u5668\u7a81\u7136\u8b8a\u66f4\uff0c\u90fd\u53ef\u80fd\u610f\u5473\u8457\u6709\u4eba\u5728\u5617\u8a66\u64cd\u7e31\u5feb\u53d6\u3002\n <\/p>\n<\/li>\n<\/ul>\n<\/li>\n

               • \n

                 \n \u5c07\u9019\u4efd\u6e05\u55ae\u7d0d\u5165\u4f60\u7684\u5e38\u898f\u57fa\u790e\u8a2d\u65bd\u8a55\u5be9\u4e4b\u4e2d\uff0c\u5c24\u5176\u662f\u5728\u7f8e\u570b\u6a5f\u623f\u4e0a\u67b6\u65b0\u6a5f\u6ac3\u6642\uff0c\u9019\u662f\u300c\u4f4e\u6295\u5165\u3001\u9ad8\u5831\u916c\u300d\u7684\u5de5\u4f5c\u2014\u2014\u9060\u6bd4\u4e8b\u5f8c\u6e05\u7406\u90a3\u7a2e\u6084\u7121\u8072\u606f\u5730\u91cd\u8def\u7531\u95dc\u9375\u4ea4\u6613\u6d41\u91cf\u7684\u6210\u529f\u6c59\u67d3\u653b\u64ca\u8981\u8f15\u9b06\u5f97\u591a\u3002\n <\/p>\n<\/li>\n<\/ul>\n

                 10. \u8d85\u8d8a\u71b5\u672c\u8eab\uff1aDNSSEC \u8207\u5206\u5c64\u9632\u79a6<\/strong><\/h2>\n<\/h2>\n

                 \n
                 • \n

                   \n TXID \u548c\u57e0\u96a8\u6a5f\u5316\u662f\u6a5f\u7387\u610f\u7fa9\u4e0a\u7684\u9632\u79a6\uff1a\u5b83\u5011\u8b93\u653b\u64ca\u6210\u529f\u7684\u6a5f\u7387\u8b8a\u5f97\u66f4\u5c0f\uff0c\u4f46\u5f9e\u6578\u5b78\u4e0a\u8aaa\u6c38\u9060\u505a\u4e0d\u5230\u300c\u7d55\u5c0d\u4e0d\u53ef\u80fd\u300d\u3002\u76f8\u8f03\u4e4b\u4e0b\uff0cDNSSEC \u628a DNS \u8a18\u9304\u8b8a\u6210\u4e86\u5e36\u6709\u7c3d\u7ae0\u7684\u8cc7\u6599\u7269\u4ef6\u3002\u555f\u7528\u9a57\u8b49\u7684\u89e3\u6790\u5668\u4e26\u4e0d\u53ea\u662f\u300c\u5e0c\u671b\u300d\u56de\u61c9\u662f\u771f\u5be6\u7684\uff0c\u5b83\u6703\u9a57\u8b49\u4e00\u500b\u7531\u53d7\u4fe1\u4efb\u91d1\u9470\u93c8\u9328\u5b9a\u7684\u5bc6\u78bc\u5b78\u8b49\u660e\u3002\n <\/p>\n<\/li>\n

                 • \n

                   \n \u5c0d\u4f60\u63a7\u5236\u7684\u7db2\u57df\u540d\u7a31\u800c\u8a00\uff0c\u5728\u90e8\u7f72\u65bc\u7f8e\u570b\u5730\u5340\u7684\u6b0a\u5a01\u4f3a\u670d\u5668\u4e0a\u767c\u5e03 DNSSEC \u8a18\u9304\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u7c21\u55ae\u3002\u8a31\u591a\u8a3b\u518a\u5546\u5df2\u7d93\u6574\u5408\u4e86\u91d1\u9470\u7ba1\u7406\u548c\u7c3d\u7ae0\u81ea\u52d5\u5316\u3002\u4e0d\u904e\uff0c\u5728\u905e\u8ff4\u89e3\u6790\u5668\u7aef\uff0c\u5373\u4fbf\u555f\u7528\u4e86 DNSSEC \u9a57\u8b49\uff0c\u4f60\u4ecd\u7136\u9700\u8981\u5065\u5168\u7684 TXID \u548c\u57e0\u884c\u70ba\u3002\u4e26\u4e0d\u662f\u5168\u7403\u6240\u6709\u5340\u57df\u90fd\u555f\u7528\u7c3d\u7ae0\uff0c\u800c\u4e14\u71df\u904b\u932f\u8aa4\u4e5f\u53ef\u80fd\u5c0e\u81f4\u66ab\u6642\u6027\u7684\u964d\u7d1a\u6216\u56de\u9000\u884c\u70ba\u3002\n <\/p>\n<\/li>\n

                 • \n

                   \n \u5be6\u969b\u4e0a\uff0c\u53ef\u4ee5\u628a\u96a8\u6a5f\u5316\u6a5f\u5236\u770b\u6210\u653b\u64ca\u8005\u8981\u7ffb\u8d8a\u7684\u7b2c\u4e00\u9053\u67f5\u6b04\uff0c\u800c DNSSEC \u5247\u662f\u67f5\u6b04\u5f8c\u9762\u90a3\u6247\u771f\u6b63\u4e0a\u9396\u7684\u9580\u3002\u5728\u73fe\u5be6\u7684\u6642\u9593\u8207\u9810\u7b97\u9650\u5236\u4e0b\uff0c\u4f60\u5e0c\u671b\u5169\u8005\u517c\u5f97\uff1b\u4f60\u53ea\u9700\u8981\u63a5\u53d7\u9019\u6a23\u4e00\u500b\u4e8b\u5be6\uff1aDNSSEC \u7684\u90e8\u7f72\u9700\u8981\u61c9\u7528\u64c1\u6709\u8005\u3001DNS \u7dad\u904b\u4eba\u54e1\u8207\u7f8e\u570b\u8cc7\u6599\u4e2d\u5fc3\u7db2\u8def\u5718\u968a\u4e4b\u9593\u7684\u5354\u8abf\u3002\n <\/p>\n<\/li>\n<\/ul>\n

                   11. \u5728\u771f\u5be6\u74b0\u5883\u4e2d\u5ea6\u91cf\u96a8\u6a5f\u5316<\/strong><\/h2>\n<\/h2>\n

                   \n
                   • \n

                     \n \u5de5\u7a0b\u5e2b\u5f80\u5f80\u66f4\u76f8\u4fe1\u5716\u8868\u800c\u4e0d\u662f\u53e3\u982d\u627f\u8afe\u3002\u70ba\u4e86\u8a55\u4f30\u4f60\u7684\u74b0\u5883\uff0c\u4f60\u53ef\u4ee5\u5728\u7db2\u969b\u7db2\u8def\u4e0a\u627e\u4e00\u500b\u89c0\u5bdf\u9ede\uff0c\u900f\u904e\u5b83\u5c0d\u4f60\u7684\u89e3\u6790\u5668\u767c\u8d77\u5927\u91cf\u67e5\u8a62\u4e26\u89c0\u5bdf\u5c0d\u61c9\u6d41\u91cf\u3002\u7576\u4f60\u4f4d\u65bc\u67d0\u500b\u7f8e\u570b\u7db2\u8def\u6642\uff0c\u64f7\u53d6\u5c01\u5305\u4e26\u6aa2\u67e5 TXID \u662f\u5426\u8f03\u5747\u52fb\u5730\u6db5\u84cb\u4e86 16 \u4f4d\u7a7a\u9593\uff0c\u4ee5\u53ca\u4f86\u6e90\u57e0\u662f\u5426\u5206\u4f48\u5728\u5bec\u6cdb\u3001\u770b\u4f3c\u96a8\u6a5f\u7684\u66ab\u7528\u57e0\u96c6\u5408\u4e2d\u3002\n <\/p>\n<\/li>\n

                   • \n

                     \n \u4e00\u500b\u5178\u578b\u7684\u5de5\u4f5c\u6d41\u7a0b\u662f\u570d\u7e5e dig<\/code> \u6216 kdig<\/code> \u9019\u985e\u5de5\u5177\u7de8\u5beb\u81ea\u8a02\u6307\u4ee4\u78bc\uff0c\u518d\u914d\u5408\u5c01\u5305\u64f7\u53d6\u5de5\u5177\u3002\u91dd\u5c0d\u4e0d\u592a\u53ef\u80fd\u88ab\u5feb\u53d6\u7684\u7db2\u57df\u540d\u7a31\u767c\u8d77\u4e00\u9663\u7a81\u767c\u67e5\u8a62\uff0c\u5c07\u5c01\u5305\u64f7\u53d6\u7d50\u679c\u532f\u51fa\u70ba\u6587\u5b57\uff0c\u7136\u5f8c\u5c0d\u5176\u4e2d\u7684 ID \u8207\u57e0\u6b04\u4f4d\u505a\u7c21\u55ae\u7d71\u8a08\u3002\u5982\u679c\u4f60\u767c\u73fe\u660e\u986f\u7684\u6a21\u5f0f\u2014\u2014\u4f8b\u5982 ID \u9023\u7e8c\u905e\u589e\u7684\u9577\u5e8f\u5217\u3001\u57e0\u865f\u59cb\u7d42\u505c\u7559\u5728\u7a84\u7a84\u7684\u4e00\u6bb5\u5340\u9593\u5167\u2014\u2014\u90a3\u5c31\u8aaa\u660e\u4f60\u6709\u4e86\u53ef\u4ee5\u4ed8\u8af8\u884c\u52d5\u7684\u8b49\u64da\uff0c\u8b49\u660e\u96a8\u6a5f\u6027\u6b63\u5728\u88ab\u9650\u5236\u3002\n <\/p>\n<\/li>\n

                   • \n

                     \n \u5c07\u9019\u4e9b\u6aa2\u67e5\u7d0d\u5165\u6301\u7e8c\u4ea4\u4ed8\u7ba1\u7dda\u4e26\u4e0d\u7b97\u300c\u904e\u5ea6\u5de5\u7a0b\u300d\u3002\u6bcf\u7576\u4f60\u91cd\u65b0\u90e8\u7f72\u89e3\u6790\u5668\u6620\u50cf\u6a94\uff0c\u6216\u8abf\u6574\u570d\u7e5e\u7f8e\u570b\u53e2\u96c6\u7684\u9632\u706b\u7246\u898f\u5247\u6642\uff0c\u4e00\u6b21\u8f15\u91cf\u7d1a\u7684 DNS \u71b5\u300c\u5192\u7159\u6e2c\u8a66\u300d\u5c31\u80fd\u5e6b\u52a9\u4f60\u78ba\u4fdd\uff0c\u65b0\u5f15\u5165\u7684\u5404\u7a2e\u4fbf\u5229\u6027\u8a2d\u5b9a\u4e26\u6c92\u6709\u6084\u6084\u524a\u5f31\u9632\u79a6\u80fd\u529b\u3002\n <\/p>\n<\/li>\n<\/ul>\n

                     12. \u95dc\u65bc\u53cd\u6a21\u677f\u5316\u8207\u6587\u4ef6\u5f62\u614b\u7684\u4e00\u9ede\u63d0\u9192<\/strong><\/h2>\n<\/h2>\n

                     \n
                     • \n

                       \n \u5b89\u5168\u5718\u968a\u8d8a\u4f86\u8d8a\u64d4\u5fc3\u90a3\u7a2e\u300c\u5343\u7bc7\u4e00\u5f8b\u7684\u6587\u4ef6\u6a21\u677f\u300d\u6703\u63a9\u84cb\u95dc\u9375\u7d30\u7bc0\u3002\u540c\u6a23\u7684\u64d4\u5fc3\u4e5f\u9069\u7528\u65bc\u9019\u88e1\uff1a\u5982\u679c\u4f60\u5c0d DNS \u9632\u79a6\u7684\u7406\u89e3\u53ea\u505c\u7559\u5728\u300c\u7c21\u5831\u4e0a\u7684\u5169\u689d\u9805\u76ee\u7b26\u865f\u300d\uff0c\u5c31\u5f88\u5bb9\u6613\u5ffd\u7565\u89e3\u6790\u5668\u3001\u9632\u706b\u7246\u8207\u7f8e\u570b\u7db2\u8def\u62d3\u64b2\u4e4b\u9593\u90a3\u4e9b\u5fae\u5999\u7684\u4e92\u52d5\u3002\u56e0\u6b64\uff0c\u672c\u6587\u6709\u610f\u907f\u514d\u7d93\u5178\u7684\u300c\u4e09\u6bb5\u5f0f\u7d50\u69cb\u300d\uff08\u524d\u8a00\u3001\u4e3b\u9ad4\u3001\u7d50\u8ad6\uff09\uff0c\u800c\u662f\u5f9e\u82e5\u5e72\u76f8\u5c0d\u7368\u7acb\u7684\u5de5\u7a0b\u8996\u89d2\u5207\u5165\uff0c\u4f60\u53ef\u4ee5\u6839\u64da\u81ea\u5df1\u7684\u67b6\u69cb\u9078\u64c7\u6027\u9a57\u8b49\u6216\u5ffd\u7565\u3002\n <\/p>\n<\/li>\n

                     • \n

                       \n \u5728\u70ba\u81ea\u5df1\u7684\u74b0\u5883\u64b0\u5beb\u6587\u4ef6\u6642\uff0c\u4e5f\u76e1\u91cf\u8ffd\u6c42\u985e\u4f3c\u7684\u9846\u7c92\u5ea6\u3002\u4e0d\u8981\u53ea\u5beb\u4e00\u53e5\u300c\u555f\u7528 DNS \u5b89\u5168\u6700\u4f73\u5be6\u52d9\u300d\u9019\u6a23\u7684\u7e3d\u5247\uff0c\u800c\u61c9\u8a72\u5728\u6587\u4ef6\u4e2d\u660e\u78ba\u5beb\u51fa\u8207 TXID \u7522\u751f\u5668\u3001\u57e0\u7bc4\u570d\u3001NAT \u884c\u70ba\u4ee5\u53ca\u76e3\u63a7 Hook \u76f8\u95dc\u7684\u5177\u9ad4\u689d\u6b3e\u3002\u9019\u6a23\u4e00\u4f86\uff0c\u5c07\u4f86\u63a5\u624b\u7684\u7dad\u8b77\u8005\u2014\u2014\u5f88\u53ef\u80fd\u662f\u53e6\u4e00\u652f\u5718\u968a\uff0c\u751a\u81f3\u5728\u53e6\u4e00\u500b\u5730\u5340\u2014\u2014\u4e5f\u80fd\u66f4\u5bb9\u6613\u63a8\u7406\u51fa\u4f60\u9019\u5957\u7f8e\u570b\u672c\u571f DNS \u5806\u758a\u539f\u672c\u61c9\u8a72\u63d0\u4f9b\u600e\u6a23\u7684\u5b89\u5168\u4fdd\u8b49\u3002\n <\/p>\n<\/li>\n<\/ul>\n

                       13. \u5c07\u89e3\u6790\u5668\u5728\u6280\u8853\u5806\u758a\u4e2d\u7684\u4f4d\u7f6e\u53ef\u8996\u5316<\/strong><\/h2>\n<\/h2>\n

                       \n
                       • \n

                         \n \u756b\u4e00\u5f35\u8349\u5716\u2014\u2014\u54ea\u6015\u53ea\u662f\u5728\u8166\u6d77\u4e2d\u2014\u2014\u6709\u52a9\u65bc\u7406\u89e3\u4f60\u7684\u89e3\u6790\u5668\u90e8\u7f72\u5728\u54ea\u88e1\u3002\u60f3\u50cf\u4e00\u4e0b\uff1a\u4f7f\u7528\u8005\u7aef\u7684\u5ba2\u6236\u7aef\u3001\u8cbc\u8fd1\u4f7f\u7528\u8005\u7684\u908a\u7de3 Proxy\u3001\u591a\u689d\u901a\u5f80\u7f8e\u570b\u9aa8\u5e79\u7db2\u7684\u50b3\u8f38\u93c8\u8def\uff0c\u4ee5\u53ca\u6700\u7d42\u4f4d\u65bc\u8ca0\u8f09\u5e73\u8861\u5668\u4e4b\u5f8c\u7684\u61c9\u7528\u53e2\u96c6\u3002\u5728\u9019\u5f35\u5716\u4e2d\u7684\u67d0\u500b\u4f4d\u7f6e\uff08\u901a\u5e38\u4e0d\u53ea\u4e00\u500b\u9ede\uff09\uff0c\u89e3\u6790\u5668\u627f\u64d4\u8457\u628a\u540d\u7a31\u8f49\u63db\u6210\u4f4d\u5740\u7684\u4efb\u52d9\u3002\u6bcf\u4e00\u500b\u89e3\u6790\u7bc0\u9ede\uff0c\u90fd\u662f\u4e00\u500b\u53d7 TXID \u8207\u57e0\u9078\u64c7\u71b5\u63a7\u5236\u7684\u300c\u96a8\u6a5f\u6c7a\u7b56\u9ede\u300d\uff0c\u7136\u5f8c\u518d\u758a\u52a0\u4f60\u5e03\u7f6e\u5728\u5176\u4e0a\u7684\u66f4\u9ad8\u5c64\u9a57\u8b49\u6a5f\u5236\u3002\n <\/p>\n<\/li>\n

                       • \n

                         \n \u8a31\u591a\u5718\u968a\u6703\u5728\u5167\u90e8 Runbook \u4e2d\u4fdd\u7559\u985e\u4f3c\u7684\u62d3\u64b2\u5716\uff0c\u4f46\u5f88\u5c11\u5728\u4e0a\u9762\u6a19\u8a3b\u300c\u5b89\u5168\u59ff\u614b\u300d\u76f8\u95dc\u8cc7\u8a0a\u3002\u53ef\u4ee5\u66f4\u9032\u4e00\u6b65\uff1a\u6a19\u51fa\u54ea\u4e9b\u89e3\u6790\u5668\u662f\u4f60\u76f4\u63a5\u7dad\u8b77\u7684\uff0c\u54ea\u4e9b\u6b78\u5c6c\u65bc\u670d\u52d9\u4f9b\u61c9\u5546\uff0c\u4ee5\u53ca\u4f60\u5206\u5225\u5c0d\u5b83\u5011\u7684\u96a8\u6a5f\u5316\u884c\u70ba\u505a\u4e86\u54ea\u4e9b\u5047\u8a2d\u3002\u5c0d\u65bc\u7f8e\u570b\u672c\u571f\u7684\u4f3a\u670d\u5668\u79df\u7528\u6216\u4f3a\u670d\u5668\u8a17\u7ba1\u90e8\u7f72\u4f86\u8aaa\uff0c\u9019\u5f80\u5f80\u80fd\u66b4\u9732\u90a3\u4e9b\u88ab\u8996\u4f5c\u7406\u6240\u7576\u7136\u3001\u537b\u5f9e\u672a\u771f\u6b63\u7a3d\u6838\u904e\u7684\u3001\u7531\u670d\u52d9\u4f9b\u61c9\u5546\u7ba1\u7406\u7684 DNS \u53e2\u96c6\u4f9d\u8cf4\u3002\n <\/p>\n<\/li>\n

                       • \n

                         \n \u5982\u679c\u4f60\u9078\u64c7\u5728\u6587\u4ef6\u4e2d\u4fdd\u7559\u4e00\u5f35\u53c3\u8003\u62d3\u64b2\u5716\uff0c\u8acb\u70ba\u5176\u914d\u4e0a\u6e05\u6670\u7684\u66ff\u4ee3\u6587\u5b57\uff08alt \u6587\u5b57\uff09\uff0c\u4f8b\u5982\u300cDNS TXID randomization mechanism diagram\uff08DNS TXID \u96a8\u6a5f\u5316\u6a5f\u5236\u793a\u610f\u5716\uff09\u300d\uff0c\u9019\u6a23\u5de5\u7a0b\u540c\u4e8b\u3001\u4f9d\u8cf4\u87a2\u5e55\u95b1\u8b80\u8edf\u9ad4\u7684\u4f7f\u7528\u8005\u4ee5\u53ca\u641c\u5c0b\u5f15\u64ce\u90fd\u53ef\u4ee5\u5728\u4e0d\u5b8c\u5168\u4f9d\u8cf4\u8996\u89ba\u7dda\u7d22\u7684\u60c5\u6cc1\u4e0b\uff0c\u7406\u89e3\u9019\u5f35\u793a\u610f\u5716\u60f3\u8868\u9054\u4ec0\u9ebc\u3002\n <\/p>\n<\/li>\n<\/ul>\n

                         14. \u9762\u5411\u771f\u5be6\u7dad\u904b\u60c5\u5883\u7684\u7d9c\u5408\u5be6\u8e10<\/strong><\/h2>\n<\/h2>\n

                         \n
                         • \n

                           \n \u5728\u7f8e\u570b\u4f3a\u670d\u5668\u4e0a\u57f7\u884c\u9ad8\u53ef\u9760\u696d\u52d9\uff0c\u610f\u5473\u8457\u8981\u628a DNS \u8996\u4f5c\u4e00\u7b49\u516c\u6c11\uff0c\u800c\u4e0d\u662f\u88ab\u907a\u5fd8\u7684\u50b3\u7d71\u5143\u4ef6\u3002\u4f60\u4e0d\u9700\u8981\u628a\u6240\u6709 RFC \u5012\u80cc\u5982\u6d41\uff0c\u4f46\u9700\u8981\u7406\u89e3\u71b5\u662f\u5982\u4f55\u88ab\u5f15\u5165\uff0c\u53c8\u5982\u4f55\u53ef\u80fd\u88ab\u8af8\u5982\u300c\u65b9\u4fbf\u7684 NAT \u6a5f\u5236\u300d\u6216\u300c\u7c21\u55ae\u7c97\u66b4\u7684\u9632\u706b\u7246\u898f\u5247\u300d\u9019\u985e\u529f\u80fd\u6084\u6084\u62b9\u5e73\u3002\u5065\u5168\u7684 TXID \u884c\u70ba\u3001\u5408\u7406\u7684\u4f86\u6e90\u57e0\u9078\u64c7\uff0c\u52a0\u4e0a\u6709\u8a2d\u8a08\u611f\u7684\u76e3\u63a7\u9ad4\u7cfb\uff0c\u53ef\u4ee5\u81ea\u7136\u878d\u5165\u73fe\u6709\u7684\u57fa\u790e\u8a2d\u65bd\u7dad\u904b\u624b\u518a\uff0c\u69cb\u6210\u4e00\u5957\u52d9\u5be6\u53ef\u884c\u7684\u5b89\u5168\u57fa\u7dda\u3002\n <\/p>\n<\/li>\n

                         • \n

                           \n \u6700\u6709\u6548\u7684\u5718\u968a\u6703\u628a\u9019\u4e9b\u6aa2\u67e5\u7d0d\u5165\u65e5\u5e38\u7dad\u904b\u7bc0\u594f\uff1a\u6bcf\u7576\u64f4\u5145\u65b0\u7684\u4f3a\u670d\u5668\u79df\u7528\u5bb9\u91cf\u3001\u5728\u65b0\u7684\u7f8e\u570b\u6a5f\u623f\u4e0a\u67b6\u4f3a\u670d\u5668\u8a17\u7ba1\u6a5f\u6ac3\uff0c\u6216\u66f4\u63db\u4e0a\u6e38\u670d\u52d9\u4f9b\u61c9\u5546\u6642\uff0c\u4ed6\u5011\u90fd\u6703\u50cf\u9a57\u8b49\u5ef6\u9072\u548c\u541e\u5410\u91cf\u90a3\u6a23\u9a57\u8b49 DNS \u884c\u70ba\u3002\u5de5\u5177\u53ef\u4ee5\u81ea\u52d5\u5316\u5ea6\u91cf\u904e\u7a0b\uff0c\u4f46\u771f\u6b63\u7684\u5b89\u5168\u610f\u5716\u5fc5\u9808\u4f86\u81ea\u90a3\u4e9b\u95dc\u5fc3\u5fae\u5999\u5931\u6548\u6a21\u5f0f\u7684\u4eba\u3002\n <\/p>\n<\/li>\n

                         • \n

                           \n \u5982\u679c\u4f60\u53ea\u80fd\u8a18\u4f4f\u4e00\u4ef6\u4e8b\uff0c\u90a3\u5c31\u8a18\u4f4f\u9019\u4e00\u9ede\uff1a\u7531\u82e5\u5e72\u7c21\u55ae\u3001\u6613\u65bc\u7406\u89e3\u7684\u6a5f\u5236\u7d44\u5408\u8d77\u4f86\uff0c\u4e5f\u80fd\u5f62\u6210\u5177\u6709\u5be6\u969b\u610f\u7fa9\u7684\u9632\u8b77\u3002\u900f\u904e\u6709\u610f\u8b58\u5730\u8a2d\u8a08\u4f60\u7684\u89e3\u6790\u5668\u5982\u4f55\u8655\u7406\u4ea4\u6613 ID \u8207\u57e0\u865f\uff0c\u4e26\u5728\u4f60\u7684\u7f8e\u570b\u57fa\u790e\u8a2d\u65bd\u6240\u8655\u7684\u5177\u9ad4\u7db2\u8def\u74b0\u5883\u4e2d\u9a57\u8b49\u9019\u4e9b\u5047\u8a2d\uff0c\u4f60\u5c31\u5df2\u7d93\u986f\u8457\u589e\u52a0\u4e86\u653b\u64ca\u8005\u5c07\u4f7f\u7528\u8005\u5f9e\u300c\u4f60\u771f\u6b63\u5e0c\u671b\u4ed6\u5011\u62b5\u9054\u7684\u4f4d\u7f6e\u300d\u6084\u6084\u632a\u958b\u7684\u96e3\u5ea6\u2014\u2014\u540c\u6642\u4e5f\u8b93 DNS TXID \u96a8\u6a5f\u5316\u6a5f\u5236\u5f9e\u300c\u770b\u4e0d\u898b\u7684\u9810\u8a2d\u9805\u300d\u8b8a\u6210\u67b6\u69cb\u4e2d\u4e00\u500b\u660e\u78ba\u3001\u53ef\u6e2c\u8a66\u7684\u7d44\u6210\u90e8\u5206\u3002\n <\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

                           \u5982\u679c\u4f60\u5728\u57f7\u884c\u56b4\u8085\u7684\u696d\u52d9\u4e26\u4f7f\u7528 \u7f8e\u570b\u5c08\u7528\u4f3a\u670d\u5668\uff0c DNS \u5c31\u4e0d\u518d\u53ea\u662f\u300c\u5e95\u5c64\u7ba1\u9053\u300d\uff1b\u5b83\u5df2\u7d93\u6210\u70ba\u4f60\u7684\u5a01\u8105\u9762\u7684\u4e00\u90e8\u5206\u3002 […]<\/p>\n

                           Read More…<\/a><\/p>\n","protected":false},"author":1,"featured_media":35058,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4815],"tags":[13622,13623,13624,13625,4883],"class_list":["post-35061","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-tc","tag-dns-txid-randomization-mechanism","tag-dns-cache-poisoning","tag-dns-source-port-randomization","tag-dns-security-hardening","tag-us-dedicated-server-tc"],"acf":[],"yoast_head":"\n