{"id":67619,"date":"2025-11-20T09:38:49","date_gmt":"2025-11-20T01:38:49","guid":{"rendered":"https:\/\/www.dataplugs.com\/network-time-protocol-hardening-for-tamper-resistant-clocks\/"},"modified":"2025-11-20T10:22:58","modified_gmt":"2025-11-20T02:22:58","slug":"network-time-protocol-hardening-for-tamper-resistant-clocks","status":"publish","type":"post","link":"https:\/\/www.dataplugs.com\/tc\/network-time-protocol-hardening-for-tamper-resistant-clocks\/","title":{"rendered":"\u5f37\u5316 Network Time Protocol \u4ee5\u5be6\u73fe\u9632\u7be1\u6539\u6642\u9418"},"content":{"rendered":"<p>NTP\uff08Network Time Protocol\uff0c\u7db2\u7d61\u6642\u9593\u5354\u5b9a\uff09\u662f\u73fe\u4ee3 IT \u57fa\u790e\u8a2d\u65bd\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u74b0\uff0c\u78ba\u4fdd\u4e0d\u540c\u4f3a\u670d\u5668\u3001\u8a2d\u5099\u8207\u61c9\u7528\u80fd\u540c\u6b65\u7cbe\u6e96\u6642\u9593\u3002NTP 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\u5728\u4f01\u696d\u71df\u904b\u8207\u8cc7\u5b89\u4e2d\u7684\u95dc\u9375\u89d2\u8272<\/strong><\/h2>\n<p>NTP \u900f\u904e\u8207\u5916\u90e8\u6b0a\u5a01\u6642\u9593\u6e90\uff08\u5982 GPS \u6216\u539f\u5b50\u9418\u9023\u7d50\u7684 stratum 1 \u4f3a\u670d\u5668\uff09\u540c\u6b65\uff0c\u78ba\u4fdd\u6240\u6709\u8a2d\u5099\u6642\u9418\u4e00\u81f4\u3002\u9019\u5c0d Kerberos \u8a8d\u8b49\u3001\u6578\u78bc\u6191\u8b49\u9a57\u8b49\u3001\u8de8\u7cfb\u7d71\u65e5\u8a8c\u6bd4\u5c0d\u53ca\u4ea4\u6613\u6392\u5e8f\u7b49\u529f\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u6642\u9418\u51fa\u73fe\u8aa4\u5dee\u6216\u906d\u60e1\u610f\u64cd\u63a7\uff0c\u5c07\u5f15\u767c\u8a8d\u8b49\u5931\u6557\u3001\u5408\u898f\u9055\u898f\u3001\u53d6\u8b49\u56f0\u96e3\uff0c\u751a\u81f3\u8b93\u653b\u64ca\u884c\u70ba\u96b1\u8eab\u65bc\u4f01\u696d\u7db2\u7d61\u4e4b\u4e2d\u3002<\/p>\n<h2><strong>NTP \/ PTP \u9762\u81e8\u7684\u5a01\u8105\u8207\u6f0f\u6d1e<\/strong><\/h2>\n<p>NTP \u50b3\u7d71\u958b\u653e\u3001\u7121\u72c0\u614b\u7279\u6027\uff0c\u8b93\u653b\u64ca\u8005\u6709\u6a5f\u53ef\u4e58\uff1a<\/p>\n<ul>\n<li><strong>\u507d\u9020\u8207\u4e2d\u9593\u4eba\u653b\u64ca<\/strong>\uff1a\u99ed\u5ba2\u53ef\u5192\u5145\u5408\u6cd5\u6642\u9593\u4f3a\u670d\u5668\u6216\u6514\u622a NTP \u6d41\u91cf\uff0c\u6ce8\u5165\u932f\u8aa4\u6642\u9593\uff0c\u6df7\u6dc6\u65e5\u8a8c\u6216\u7e5e\u904e\u8a8d\u8b49\u3002<\/li>\n<li><strong>\u963b\u65b7\u670d\u52d9\u8207\u653e\u5927\u653b\u64ca<\/strong>\uff1a\u516c\u958b NTP \u4f3a\u670d\u5668\u6613\u88ab\u5229\u7528\u767c\u52d5 DDoS\uff0c\u6216\u81ea\u8eab\u906d\u7671\u7613\u5c0e\u81f4\u5168\u7db2\u6642\u9593\u5931\u6e96\u3002<\/li>\n<li><strong>\u5c01\u5305\u64cd\u63a7\u8207\u5ef6\u9072<\/strong>\uff1a\u653b\u64ca\u8005\u53ef\u9078\u64c7\u6027\u5ef6\u9072\u3001\u522a\u9664\u6216\u7ac4\u6539 NTP \u5c01\u5305\uff0c\u9020\u6210\u7cfb\u7d71\u6642\u9418\u7de9\u6162\u6f02\u79fb\uff0c\u96e3\u4ee5\u5373\u6642\u5bdf\u89ba\u3002<\/li>\n<li><strong>\u5167\u90e8\u5a01\u8105<\/strong>\uff1a\u906d\u5165\u4fb5\u7684\u5167\u90e8\u8a2d\u5099\u53ef\u6ce8\u5165\u60e1\u610f\u6642\u9593\uff0c\u7e5e\u904e\u50b3\u7d71\u908a\u754c\u9632\u8b77\u3002<\/li>\n<li><strong>\u52a0\u5bc6\u9a57\u8b49\u5f31\u9ede<\/strong>\uff1a\u820a\u5f0f MD5\u3001SHA-1 \u6a5f\u5236\u5df2\u4e0d\u5b89\u5168\uff0c\u5c0d\u7a31\u91d1\u9470\u7ba1\u7406\u56f0\u96e3\uff0cAutokey \u7b49\u975e\u5c0d\u7a31\u65b9\u6cd5\u4e5f\u6709\u5df2\u77e5\u6f0f\u6d1e\u3002<\/li>\n<\/ul>\n<p>PTP \u5728\u91d1\u878d\u3001\u96fb\u4fe1\u3001\u5de5\u63a7\u7b49\u5fae\u79d2\u7d1a\u540c\u6b65\u9818\u57df\u540c\u6a23\u9762\u81e8\u985e\u4f3c\u751a\u81f3\u66f4\u56b4\u5cfb\u7684\u98a8\u96aa\uff0c\u5c24\u5176\u7576\u653b\u64ca\u91dd\u5c0d\u5c08\u7528\u786c\u4ef6\u6216\u7db2\u7d61\u93c8\u8def\u6642\uff0c\u5f71\u97ff\u66f4\u70ba\u6df1\u9060\u3002<\/p>\n<h2><strong>\u9632\u7be1\u6539 NTP \u5f37\u5316\u7684\u6838\u5fc3\u539f\u5247<\/strong><\/h2>\n<p>\u8981\u69cb\u5efa\u9632\u7be1\u6539\u3001\u53ef\u6301\u7e8c\u4fe1\u4efb\u7684\u6642\u9593\u540c\u6b65\u74b0\u5883\uff0c\u5fc5\u9808\u63a1\u7528\u591a\u5c64\u6b21\u624b\u6cd5\uff1a<\/p>\n<ul>\n<li><strong>\u5b58\u53d6\u63a7\u5236\u8207\u7db2\u7d61\u5206\u6bb5<\/strong>\uff1a\u50c5\u5141\u8a31\u6388\u6b0a\u5b50\u7db2\u8207 IP \u5b58\u53d6 NTP \u4f3a\u670d\u5668\uff0c\u4e26\u4ee5\u9632\u706b\u7246\u56b4\u683c\u63a7\u7ba1\u6d41\u91cf\u3002<\/li>\n<li><strong>\u6700\u5c0f\u5316\u653b\u64ca\u9762<\/strong>\uff1a\u95dc\u9589\u4e0d\u5fc5\u8981\u7684 NTP \u67e5\u8a62\u3001\u6307\u4ee4\u8207\u5ee3\u64ad\u529f\u80fd\uff0c\u6e1b\u5c11\u6f5b\u5728\u98a8\u96aa\u3002<\/li>\n<li><strong>\u9a57\u8b49\u53ef\u9760\u6642\u9593\u4f86\u6e90<\/strong>\uff1a\u6240\u6709\u6642\u9593\u540c\u6b65\u5747\u61c9\u555f\u7528\u52a0\u5bc6\u9a57\u8b49\uff0c\u5167\u90e8\u53ef\u7528\u5c0d\u7a31\u91d1\u9470\uff0c\u5c0d\u5916\u5efa\u8b70\u63a1\u7528 NTS\uff08Network Time Security\uff09\u7b49\u73fe\u4ee3 TLS \u9a57\u8b49\u6a19\u6e96\u3002<\/li>\n<li><strong>\u5197\u9918\u8207\u62dc\u5360\u5ead\u5bb9\u932f<\/strong>\uff1a\u6bcf\u53f0\u8a2d\u5099\u61c9\u540c\u6b65\u591a\u500b\u7368\u7acb\u4f86\u6e90\uff08\u4e0d\u540c\u4f9b\u61c9\u5546\u3001\u5730\u5340\uff09\uff0c\u81ea\u52d5\u6bd4\u5c0d\u6578\u64da\uff0c\u6392\u9664\u7570\u5e38\uff0c\u9632\u6b62\u55ae\u9ede\u5931\u6548\u6216\u55ae\u4e00\u4f86\u6e90\u88ab\u5165\u4fb5\u3002<\/li>\n<li><strong>\u6301\u7e8c\u76e3\u63a7\u8207\u7570\u5e38\u5075\u6e2c<\/strong>\uff1a\u4ee5\u81ea\u52d5\u5316\u5de5\u5177\u5be6\u6642\u76e3\u63a7\u6642\u9593\u504f\u79fb\u3001\u6296\u52d5\u53ca\u540c\u6b65\u5065\u5eb7\u72c0\u614b\uff0c\u7570\u5e38\u5373\u6642\u8b66\u5831\u3002<\/li>\n<li><strong>\u5b9a\u671f\u66f4\u65b0\u8207\u5be9\u6838<\/strong>\uff1a\u4fdd\u6301 NTP \u8edf\u4ef6\u53ca\u7cfb\u7d71\u5957\u4ef6\u6700\u65b0\uff0c\u5b9a\u671f\u6e05\u67e5\u8a2d\u5b9a\uff0c\u79fb\u9664\u904e\u6642\u6b0a\u9650\u8207\u9810\u8a2d\u503c\u3002<\/li>\n<li><strong>PTP \u7db2\u7d61\u9694\u96e2\u8207\u9a57\u8b49<\/strong>\uff1a\u9ad8\u7cbe\u5ea6\u9700\u6c42\u74b0\u5883\u4e0b\uff0cPTP \u61c9\u90e8\u7f72\u65bc\u5c08\u5c6c\u7db2\u6bb5\uff0c\u555f\u7528\u5354\u5b9a\u5c64\u9a57\u8b49\u4e26\u8de8\u4f86\u6e90\u6bd4\u5c0d\u3002<\/li>\n<\/ul>\n<h2><strong>NTP \u9632\u7be1\u6539\u5f37\u5316\u6b65\u9a5f<\/strong><\/h2>\n<ol>\n<li><strong>\u56b4\u683c\u5b58\u53d6\u6b0a\u9650<\/strong>\uff1a\u53ea\u958b\u653e\u6388\u6b0a\u5b50\u7db2\u8def\u8207\u8a2d\u5099\u9023\u7dda\uff0c\u7db2\u7d61\u5c64\u8207\u61c9\u7528\u5c64\u96d9\u91cd\u63a7\u7ba1\u3002<\/li>\n<li><strong>\u95dc\u9589\u4e0d\u5fc5\u8981\u529f\u80fd<\/strong>\uff1a\u505c\u7528\u4e0d\u9700\u7528\u5230\u7684 NTP \u67e5\u8a62\u547d\u4ee4\u53ca\u7ba1\u7406\u4ecb\u9762\uff0c\u9632\u6b62\u88ab\u7528\u65bc\u5075\u5bdf\u6216\u653e\u5927\u653b\u64ca\u3002<\/li>\n<li><strong>\u5168\u9762\u555f\u7528\u9a57\u8b49<\/strong>\uff1a\u6240\u6709 NTP \u901a\u8a0a\u5747\u61c9\u6709\u52a0\u5bc6\u9a57\u8b49\uff0c\u4e26\u5efa\u7acb\u5065\u5168\u91d1\u9470\u7ba1\u7406\u8207\u8f2a\u66ff\u6a5f\u5236\u3002<\/li>\n<li><strong>\u53ca\u6642\u66f4\u65b0\u8edf\u4ef6<\/strong>\uff1aNTP \u670d\u52d9\u4e3b\u6a5f\u8207\u4f5c\u696d\u7cfb\u7d71\u9808\u5b9a\u671f\u4fee\u88dc\u6f0f\u6d1e\u3002<\/li>\n<li><strong>\u591a\u4f86\u6e90\u5197\u9918\u8a2d\u8a08<\/strong>\uff1a\u6bcf\u53f0\u5ba2\u6236\u7aef\u61c9\u8a2d\u5b9a\u591a\u500b\u7368\u7acb\u3001\u6b0a\u5a01 NTP \u4f86\u6e90\uff08\u4e0d\u540c\u5730\u5340\u8207\u71df\u904b\u5546\uff09\uff0c\u78ba\u4fdd\u5373\u4f7f\u67d0\u4e00\u4f86\u6e90\u7570\u5e38\u4e5f\u4e0d\u5f71\u97ff\u6574\u9ad4\u540c\u6b65\u3002<\/li>\n<li><strong>\u6301\u7e8c\u76e3\u63a7\u8207\u7a3d\u6838<\/strong>\uff1a\u904b\u7528\u76e3\u63a7\u5de5\u5177\u8ffd\u8e64\u504f\u79fb\u3001\u6296\u52d5\u3001\u540c\u6b65\u5931\u6557\u7b49\u6307\u6a19\uff0c\u7570\u5e38\u5373\u6642\u901a\u5831\u8207\u8655\u7406\u3002<\/li>\n<li><strong>PTP \u5f37\u5316\u8207\u7db2\u7d61\u9694\u96e2<\/strong>\uff1a\u5fae\u79d2\u7d1a\u540c\u6b65\u61c9\u4ee5\u5c08\u6709 VLAN\/\u7db2\u6bb5\u904b\u4f5c\u4e26\u555f\u7528\u5354\u5b9a\u9a57\u8b49\u3002<\/li>\n<li><strong>\u6587\u4ef6\u5316\u8207\u6559\u80b2\u8a13\u7df4<\/strong>\uff1a\u8a73\u7d30\u7d00\u9304\u6240\u6709\u6642\u9593\u540c\u6b65\u653f\u7b56\u3001\u8a2d\u5b9a\u53ca\u61c9\u8b8a\u6d41\u7a0b\uff0c\u5b9a\u671f\u57f9\u8a13\u76f8\u95dc\u6280\u8853\u4eba\u54e1\u3002<\/li>\n<\/ol>\n<h2><strong>\u6301\u7e8c\u5b89\u5168\u7dad\u904b\u5efa\u8b70<\/strong><\/h2>\n<ul>\n<li>\u5b9a\u671f\u8f2a\u66ff\u91d1\u9470\uff0c\u5c24\u5176\u4eba\u54e1\u7570\u52d5\u5f8c\u3002<\/li>\n<li>\u63a1\u7528\u96c6\u4e2d\u5f0f\u8a2d\u5b9a\u7ba1\u7406\u5e73\u53f0\uff0c\u7d71\u4e00\u653f\u7b56\u8207\u8a2d\u5b9a\u3002<\/li>\n<li>\u5b9a\u671f\u6e2c\u8a66\u7570\u5e38\u60c5\u5883\u8207\u5099\u63f4\u6d41\u7a0b\u3002<\/li>\n<li>\u6bd4\u5c0d\u4e26\u9075\u5faa PCI DSS\u3001NIST\u3001HIPAA \u7b49\u7522\u696d\u6cd5\u898f\u3002<\/li>\n<li>\u6709\u689d\u4ef6\u6642\u61c9\u7528\u786c\u4ef6\u5b89\u5168\u6a21\u7d44\uff08HSM\uff09\u5f37\u5316\u91d1\u9470\u9632\u8b77\u3002<\/li>\n<\/ul>\n<h2><strong>Dataplugs \u52a9\u60a8\u5efa\u7acb\u5b89\u5168\u6642\u9593\u540c\u6b65\u57fa\u790e<\/strong><\/h2>\n<p>NTP\/PTP \u7684\u5b89\u5168\u6548\u80fd\u6df1\u53d7\u57fa\u790e\u8a2d\u65bd\u54c1\u8cea\u5f71\u97ff\u3002Dataplugs \u63d0\u4f9b\uff1a<\/p>\n<ul>\n<li><strong>\u4f01\u696d\u7d1a\u786c\u4ef6<\/strong>\uff1a\u4f4e\u6f02\u79fb\u3001\u9ad8\u7a69\u5b9a\u4f3a\u670d\u5668\uff0c\u6709\u6548\u6e1b\u5c11\u786c\u4ef6\u8aa4\u5dee\u3002<\/li>\n<li><strong>\u5168\u7403\u591a\u7dda\u5197\u9918\u7db2\u7d61<\/strong>\uff1a\u591a\u4f9b\u61c9\u5546 BGP \u7db2\u7d61\uff0c\u78ba\u4fdd\u4f4e\u5ef6\u9072\u3001\u9ad8\u53ef\u7528\u7684\u6642\u9593\u540c\u6b65\u3002<\/li>\n<li><strong>\u6574\u5408\u8cc7\u5b89\u9632\u8b77<\/strong>\uff1a\u81ea\u5e36 DDoS \u9632\u8b77\u8207\u5f48\u6027\u9632\u706b\u7246\uff0c\u6709\u6548\u62b5\u79a6\u76f4\u63a5\u6216\u653e\u5927\u653b\u64ca\u3002<\/li>\n<li><strong>\u5c08\u696d\u652f\u63f4<\/strong>\uff1a24\/7 \u6280\u8853\u652f\u63f4\uff0c\u5354\u52a9\u914d\u7f6e\u3001\u76e3\u63a7\u8207\u5373\u6642\u8655\u7406\u7570\u5e38\u4e8b\u4ef6\u3002<\/li>\n<li><strong>\u5408\u898f\u57fa\u790e\u8a2d\u65bd<\/strong>\uff1a\u7b26\u5408\u4e3b\u6d41\u6cd5\u898f\u7a3d\u6838\u53ca\u4f5c\u696d\u900f\u660e\u5ea6\u8981\u6c42\u3002<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dataplugs.com\/tc\/\">Dataplugs<\/a> 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