{"id":32989,"date":"2026-09-03T10:00:00","date_gmt":"2026-09-03T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=32989"},"modified":"2026-09-07T10:28:28","modified_gmt":"2026-09-07T02:28:28","slug":"chrony-nts-time-sync-security","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/chrony-nts-time-sync-security\/","title":{"rendered":"chrony \u65f6\u95f4\u540c\u6b65\u5b89\u5168\u52a0\u56fa\uff1aNTS \u52a0\u5bc6\u4e0e\u8bbf\u95ee\u63a7\u5236\u5b9e\u6218"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/chrony-nts-time-sync-security-cover.webp\" alt=\"chrony \u65f6\u95f4\u540c\u6b65\u5b89\u5168\u52a0\u56fa\u5c01\u9762\u56fe\" loading=\"lazy\" \/><\/p>\n<p>\u5927\u591a\u6570\u8fd0\u7ef4\u5728\u914d\u7f6e\u65f6\u95f4\u540c\u6b65\u65f6\uff0c\u53ea\u5173\u5fc3&#8221;\u65f6\u95f4\u51c6\u4e0d\u51c6&#8221;\uff0c\u5374\u5f88\u5c11\u8ffd\u95ee&#8221;\u65f6\u95f4\u53ef\u4e0d\u53ef\u4fe1&#8221;\u3002\u653b\u51fb\u8005\u4e00\u65e6\u7be1\u6539\u670d\u52a1\u5668\u65f6\u95f4\uff0c\u5c31\u80fd\u8ba9 HTTPS \u8bc1\u4e66\u6821\u9a8c\u5931\u6548\u3001\u8ba9\u65e5\u5fd7\u65f6\u95f4\u6233\u5931\u771f\u3001\u751a\u81f3\u8ba9\u57fa\u4e8e\u65f6\u95f4\u7684\u8ba4\u8bc1\u4ee4\u724c\u63d0\u524d\u8fc7\u671f\u3002\u672c\u6587\u4f1a\u6559\u4f60\u5982\u4f55\u7528 NTS\uff08Network Time Security\uff0c\u7f51\u7edc\u65f6\u95f4\u5b89\u5168\u534f\u8bae\uff09\u52a0\u5bc6\u548c\u8bbf\u95ee\u63a7\u5236\u52a0\u56fa chrony\uff0c\u5e2e\u52a9\u4f60\u8bc6\u522b\u5e76\u62b5\u5fa1\u65f6\u95f4\u6b3a\u9a97\u4e0e\u4e2d\u95f4\u4eba\u653b\u51fb\uff0c\u8ba9\u670d\u52a1\u5668\u65f6\u95f4\u65e2\u51c6\u786e\u53c8\u53ef\u4fe1\u3002<\/p>\n<h2>\u4e3a\u4ec0\u4e48\u65f6\u95f4\u540c\u6b65\u9700\u8981\u5b89\u5168\u52a0\u56fa<\/h2>\n<p>\u4f20\u7edf NTP\uff08Network Time Protocol\uff0c\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff09\u5728\u8bbe\u8ba1\u65f6\u51e0\u4e4e\u6ca1\u6709\u8003\u8651\u5b89\u5168\uff0c\u65f6\u95f4\u62a5\u6587\u4ee5\u660e\u6587\u4f20\u8f93\uff0c\u4e5f\u6ca1\u6709\u8eab\u4efd\u6821\u9a8c\u3002\u8fd9\u610f\u5473\u7740\u5728\u516c\u7f51\u94fe\u8def\u4e0a\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u4f2a\u9020 NTP \u5e94\u7b54\uff0c\u628a\u670d\u52a1\u5668\u65f6\u95f4\u6084\u6084\u62e8\u5feb\u6216\u62e8\u6162\u3002\u5bf9\u4f9d\u8d56\u65f6\u95f4\u6233\u7684\u65e5\u5fd7\u5206\u6790\u3001\u6570\u636e\u5e93\u4e8b\u52a1\u3001\u8bc1\u4e66\u6821\u9a8c\u548c\u5b9a\u65f6\u4efb\u52a1\u6765\u8bf4\uff0c\u8fd9\u79cd\u7be1\u6539\u8db3\u4ee5\u9020\u6210\u4e25\u91cd\u540e\u679c\u3002<\/p>\n<p>\u66f4\u9690\u853d\u7684\u662f\uff0c\u65f6\u95f4\u6b3a\u9a97\u5f80\u5f80\u4e0d\u4f1a\u7acb\u523b\u66b4\u9732\u3002\u670d\u52a1\u5668\u65f6\u95f4\u88ab\u62e8\u6162\u51e0\u5206\u949f\uff0c\u65e5\u5fd7\u65f6\u95f4\u6233\u4e0e\u771f\u5b9e\u4e8b\u4ef6\u5bf9\u4e0d\u4e0a\uff0c\u6392\u67e5\u95ee\u9898\u65f6\u5f88\u96be\u7b2c\u4e00\u65f6\u95f4\u60f3\u5230\u662f\u65f6\u95f4\u88ab\u7be1\u6539\u3002\u628a\u65f6\u95f4\u540c\u6b65\u7eb3\u5165\u5b89\u5168\u52a0\u56fa\u8303\u56f4\uff0c\u662f\u5f88\u591a\u7ebf\u4e0a\u6545\u969c\u6392\u67e5\u4e2d\u5bb9\u6613\u88ab\u5ffd\u7565\u7684\u4e00\u73af\u3002\u5982\u679c\u4f60\u6b63\u5728\u6392\u67e5\u670d\u52a1\u5668\u7a33\u5b9a\u6027\u95ee\u9898\uff0c\u53ef\u4ee5\u5148\u4ece<a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u914d\u7f6e\u4e0e\u4f18\u5316<\/a>\u8fd9\u4e2a\u5206\u7c7b\u5165\u624b\uff0c\u65f6\u95f4\u5b89\u5168\u5f80\u5f80\u662f\u5176\u4e2d\u5bb9\u6613\u88ab\u5ffd\u7565\u7684\u4e00\u73af\u3002<\/p>\n<h2>NTS\uff1a\u4e3a\u65f6\u95f4\u540c\u6b65\u52a0\u4e0a\u52a0\u5bc6\u4e0e\u8ba4\u8bc1<\/h2>\n<p>NTS \u662f NTP \u7684\u73b0\u4ee3\u5b89\u5168\u6269\u5c55\uff0c\u7531 RFC 8915 \u5b9a\u4e49\u3002\u5b83\u901a\u8fc7 TLS \u63e1\u624b\u534f\u5546\u5bc6\u94a5\uff0c\u518d\u7528\u8fd9\u4e9b\u5bc6\u94a5\u5bf9 NTP \u62a5\u6587\u505a\u8ba4\u8bc1\uff0c\u786e\u4fdd\u65f6\u95f4\u5e94\u7b54\u786e\u5b9e\u6765\u81ea\u53ef\u4fe1\u7684\u65f6\u95f4\u6e90\uff0c\u4e14\u5185\u5bb9\u672a\u88ab\u7be1\u6539\u3002chrony \u4ece 4.0 \u7248\u672c\u5f00\u59cb\u5b8c\u6574\u652f\u6301 NTS\uff0c\u662f\u76ee\u524d\u6700\u5bb9\u6613\u843d\u5730\u7684 NTS \u5ba2\u6237\u7aef\u5b9e\u73b0\u3002<\/p>\n<p>\u4e0e\u4f20\u7edf\u7684 NTP \u8ba4\u8bc1\uff08\u5bf9\u79f0\u5bc6\u94a5\uff09\u76f8\u6bd4\uff0cNTS \u6709\u4e24\u4e2a\u660e\u663e\u4f18\u52bf\u3002\u5b83\u4e0d\u9700\u8981\u5728\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u9884\u5148\u5171\u4eab\u5bc6\u94a5\uff0c\u5bc6\u94a5\u901a\u8fc7 TLS \u81ea\u52a8\u534f\u5546\uff0c\u90e8\u7f72\u6210\u672c\u4f4e\uff1b\u5b83\u540c\u65f6\u63d0\u4f9b\u52a0\u5bc6\u548c\u8ba4\u8bc1\uff0c\u800c\u4f20\u7edf\u65b9\u6848\u5f80\u5f80\u53ea\u505a\u8ba4\u8bc1\u3001\u4e0d\u52a0\u5bc6\u3002\u8fd9\u4e9b\u7279\u6027\u8ba9 NTS \u5728\u516c\u7f51\u65f6\u95f4\u540c\u6b65\u573a\u666f\u4e2d\u5c24\u5176\u9002\u7528\u3002\u5982\u679c\u4f60\u6b63\u5728\u8bc4\u4f30\u4e0d\u540c\u4e3b\u673a\u65b9\u6848\u5bf9\u8fd0\u7ef4\u7684\u5f71\u54cd\uff0c\u53ef\u4ee5\u770b\u770b<a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS \u4e3b\u673a<\/a>\uff08<a href=\"https:\/\/cn.hostease.com\/vps\/\">\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff0c\u5728\u4e00\u53f0\u7269\u7406\u673a\u4e0a\u9694\u79bb\u51fa\u7684\u72ec\u7acb\u8fd0\u884c\u73af\u5883\uff09\u7684\u914d\u7f6e\u8bf4\u660e\uff0c\u4e86\u89e3\u865a\u62df\u5316\u73af\u5883\u4e0b\u7684\u65f6\u95f4\u540c\u6b65\u6ce8\u610f\u4e8b\u9879\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/chrony-nts-time-sync-security-comparison.webp\" alt=\"\u660e\u6587 NTP \u4e0e NTS \u52a0\u5bc6\u65f6\u95f4\u540c\u6b65\u5bf9\u6bd4\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u542f\u7528 NTS \u52a0\u5bc6\u540c\u6b65<\/h2>\n<p>\u542f\u7528 NTS \u53ea\u9700\u5728 chrony \u914d\u7f6e\u4e2d\u628a\u65f6\u95f4\u6e90\u58f0\u660e\u4e3a <code>ntsserver<\/code> \u6307\u4ee4\u3002\u4ee5 Debian\/Ubuntu \u548c CentOS\/RHEL \u7cfb\u4e3a\u4f8b\uff0c\u7f16\u8f91 <code>\/etc\/chrony\/chrony.conf<\/code>\uff0c\u52a0\u5165\u652f\u6301 NTS \u7684\u65f6\u95f4\u6e90\uff1a<\/p>\n<pre><code class=\"language-bash\">ntsserver time.cloudflare.com\nntsserver time.google.com\n<\/code><\/pre>\n<p>\u914d\u7f6e\u5b8c\u6210\u540e\u91cd\u542f chrony \u5e76\u9a8c\u8bc1\uff1a<\/p>\n<pre><code class=\"language-bash\">systemctl restart chronyd\nchronyc -N sources -v\n<\/code><\/pre>\n<p>\u5728 <code>chronyc sources -v<\/code> \u8f93\u51fa\u4e2d\uff0cNTS \u6e90\u4f1a\u663e\u793a <code>N<\/code> \u6807\u8bb0\uff0c\u8868\u793a\u8be5\u6e90\u542f\u7528\u4e86 NTS \u8ba4\u8bc1\u3002\u82e5\u770b\u5230 <code>^?<\/code> \u4e14\u65e0 <code>N<\/code> \u6807\u8bb0\uff0c\u8bf4\u660e NTS \u534f\u5546\u5931\u8d25\uff0c\u9700\u8981\u68c0\u67e5\u65f6\u95f4\u6e90\u662f\u5426\u771f\u7684\u652f\u6301 NTS\uff0c\u4ee5\u53ca\u670d\u52a1\u5668\u80fd\u5426\u8bbf\u95ee\u5176 TLS \u7aef\u53e3\u3002\u5bf9\u8fd0\u884c\u5728<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u72ec\u7acb\u670d\u52a1\u5668<\/a>\u4e0a\u7684\u4e1a\u52a1\uff0c\u5efa\u8bae\u628a NTS \u914d\u7f6e\u7eb3\u5165\u7cfb\u7edf\u521d\u59cb\u5316\u811a\u672c\uff0c\u786e\u4fdd\u6bcf\u6b21\u91cd\u542f\u540e\u90fd\u80fd\u81ea\u52a8\u6062\u590d\u53ef\u4fe1\u65f6\u95f4\u540c\u6b65\u3002<\/p>\n<h2>\u7528\u8bbf\u95ee\u63a7\u5236\u9650\u5236\u65f6\u95f4\u6e90<\/h2>\n<p>\u9664\u4e86\u52a0\u5bc6\uff0c\u8bbf\u95ee\u63a7\u5236\u662f\u65f6\u95f4\u540c\u6b65\u5b89\u5168\u7684\u7b2c\u4e8c\u9053\u9632\u7ebf\u3002chrony \u901a\u8fc7 <code>allow<\/code> \u548c <code>deny<\/code> \u6307\u4ee4\u63a7\u5236\u54ea\u4e9b\u5ba2\u6237\u7aef\u53ef\u4ee5\u67e5\u8be2\u672c\u673a\u65f6\u95f4\uff0c\u907f\u514d\u5185\u7f51\u65f6\u95f4\u670d\u52a1\u5668\u88ab\u672a\u6388\u6743\u8bbe\u5907\u6ee5\u7528\u3002<\/p>\n<p>\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u52a0\u5165\u8bbf\u95ee\u63a7\u5236\u89c4\u5219\uff1a<\/p>\n<pre><code class=\"language-bash\">allow 192.168.1.0\/24\ndeny all\n<\/code><\/pre>\n<p><code>allow<\/code> \u6307\u5b9a\u5141\u8bb8\u8bbf\u95ee\u7684\u5185\u7f51\u7f51\u6bb5\uff0c<code>deny all<\/code> \u62d2\u7edd\u5176\u4f59\u6240\u6709\u6765\u6e90\u3002\u8fd9\u6837\u5373\u4f7f\u5185\u7f51\u65f6\u95f4\u670d\u52a1\u5668\u66b4\u9732\u5728\u516c\u7f51\uff0c\u672a\u6388\u6743\u8bbe\u5907\u4e5f\u65e0\u6cd5\u67e5\u8be2\u65f6\u95f4\u3002\u914d\u7f6e\u540e\u91cd\u542f chrony\uff0c\u7528 <code>chronyc clients<\/code> \u67e5\u770b\u5f53\u524d\u8fde\u63a5\u7684\u5ba2\u6237\u7aef\uff0c\u786e\u8ba4\u8bbf\u95ee\u63a7\u5236\u751f\u6548\u3002<\/p>\n<h2>\u65f6\u95f4\u6b3a\u9a97\u7684\u6392\u969c\u5b9e\u6218<\/h2>\n<p>\u5f53\u4f60\u6000\u7591\u65f6\u95f4\u88ab\u7be1\u6539\u65f6\uff0c\u53ef\u4ee5\u6309\u4e0b\u9762\u987a\u5e8f\u6392\u67e5\u3002\u5148\u770b <code>chronyc tracking<\/code> \u7684 <code>Leap status<\/code> \u548c <code>System time<\/code>\uff0c\u82e5\u504f\u5dee\u5f02\u5e38\u5927\u4e14\u6301\u7eed\u6ce2\u52a8\uff0c\u53ef\u80fd\u662f\u65f6\u95f4\u6e90\u88ab\u6c61\u67d3\u3002\u518d\u7528 <code>chronyc sources -v<\/code> \u89c2\u5bdf\u6bcf\u4e2a\u6e90\u7684 <code>N<\/code> \u6807\u8bb0\uff0c\u786e\u8ba4\u662f\u5426\u542f\u7528\u4e86 NTS \u8ba4\u8bc1\u3002<\/p>\n<p>\u82e5\u53d1\u73b0\u67d0\u4e2a\u6e90\u9891\u7e41\u8fd4\u56de\u5f02\u5e38\u65f6\u95f4\uff0c\u5148\u786e\u8ba4\u8be5\u6e90\u662f\u5426\u53ef\u4fe1\uff0c\u5fc5\u8981\u65f6\u79fb\u9664\u5e76\u6362\u7528\u652f\u6301 NTS \u7684\u6e90\u3002\u5bf9\u504f\u5dee\u7279\u522b\u5927\u7684\u670d\u52a1\u5668\uff0c\u53ef\u4ee5\u5148\u7528 <code>chronyc makestep<\/code> \u7acb\u5373\u628a\u65f6\u949f\u8df3\u5230\u6b63\u786e\u503c\uff0c\u518d\u8ba9 chrony \u63a5\u7ba1\u3002\u751f\u4ea7\u73af\u5883\u5efa\u8bae\u5728\u914d\u7f6e\u4e2d\u4fdd\u7559 <code>makestep 1 3<\/code> \u8fd9\u7c7b\u53c2\u6570\uff0c\u8ba9 chrony \u5728\u542f\u52a8\u521d\u671f\u504f\u5dee\u8d85\u8fc7\u9608\u503c\u65f6\u76f4\u63a5\u8df3\u53d8\uff0c\u5feb\u901f\u6062\u590d\u51c6\u786e\u3002\u8fd9\u7c7b\u6392\u969c\u601d\u8def\u540c\u6837\u9002\u7528\u4e8e\u5176\u4ed6\u7cfb\u7edf\u5c42\u9762\u7684\u95ee\u9898\uff0c\u4f60\u53ef\u4ee5\u53c2\u8003<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/ttfb-hosting-optimization\/\">\u7f51\u7ad9\u4f18\u5316<\/a>\u4e00\u6587\uff0c\u628a\u65f6\u95f4\u5b89\u5168\u7eb3\u5165\u6574\u4f53\u7a33\u5b9a\u6027\u68c0\u67e5\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/chrony-nts-time-sync-security-access-control.webp\" alt=\"chrony \u65f6\u95f4\u540c\u6b65\u8bbf\u95ee\u63a7\u5236\u6392\u969c\u573a\u666f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u65f6\u95f4\u540c\u6b65\u5b89\u5168\u7684\u8fd0\u7ef4\u5efa\u8bae<\/h2>\n<p>\u65f6\u95f4\u540c\u6b65\u5b89\u5168\u770b\u4f3c\u5c0f\u4f17\uff0c\u5374\u662f\u5f88\u591a\u9690\u853d\u6545\u969c\u7684\u6839\u6e90\u3002\u5efa\u8bae\u628a NTS \u52a0\u5bc6\u548c\u8bbf\u95ee\u63a7\u5236\u7eb3\u5165\u65e5\u5e38\u5de1\u68c0\uff1a\u5b9a\u671f\u7528 <code>chronyc -N sources -v<\/code> \u68c0\u67e5 NTS \u6807\u8bb0\uff0c\u786e\u8ba4\u65f6\u95f4\u6e90\u53ef\u4fe1\uff1b\u5728\u9632\u706b\u5899\u89c4\u5219\u4e2d\u660e\u786e\u653e\u884c NTS \u6240\u9700\u7684 UDP 123 \u7aef\u53e3\uff1b\u5bf9\u65f6\u95f4\u654f\u611f\u7684\u670d\u52a1\uff0c\u66f4\u5e94\u786e\u4fdd\u65f6\u95f4\u6e90\u7a33\u5b9a\u4e14\u7ecf\u8fc7\u8ba4\u8bc1\u3002<\/p>\n<p>\u5982\u679c\u4f60\u9700\u8981\u4e00\u53f0\u65f6\u95f4\u540c\u6b65\u7a33\u5b9a\u3001\u7f51\u7edc\u73af\u5883\u53ef\u9760\u7684\u670d\u52a1\u5668\u6765\u627f\u8f7d\u8fd9\u4e9b\u5173\u952e\u670d\u52a1\uff0c\u53ef\u4ee5\u8003\u8651 Hostease \u7684 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS<\/a>\uff08\u865a\u62df<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff0c\u5728\u4e00\u53f0\u7269\u7406\u673a\u4e0a\u9694\u79bb\u51fa\u7684\u72ec\u7acb\u8fd0\u884c\u73af\u5883\uff09\u6216<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u72ec\u7acb\u670d\u52a1\u5668<\/a>\u65b9\u6848\uff0c\u5b83\u4eec\u63d0\u4f9b\u7a33\u5b9a\u7684\u7f51\u7edc\u8fde\u63a5\u548c\u7075\u6d3b\u7684\u7cfb\u7edf\u914d\u7f6e\u6743\u9650\uff0c\u65b9\u4fbf\u4f60\u6309\u9700\u90e8\u7f72 chrony \u7b49\u8fd0\u7ef4\u5de5\u5177\u3002\u9009\u62e9\u670d\u52a1\u5668\u65f6\uff0c\u4e5f\u53ef\u4ee5\u53c2\u8003\u6211\u4eec\u5173\u4e8e<a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u6027\u80fd<\/a>\u4f18\u5316\u7684\u6587\u7ae0\uff0c\u4ece\u6574\u4f53\u4e0a\u63d0\u5347\u7ad9\u70b9\u7a33\u5b9a\u6027\u3002<\/p>\n<p>\u603b\u7ed3\u4e00\u4e0b\uff1a\u65f6\u95f4\u540c\u6b65\u5b89\u5168\u662f\u5bb9\u6613\u88ab\u5ffd\u89c6\u4f46\u91cd\u8981\u7684\u8fd0\u7ef4\u73af\u8282\u3002\u7528 NTS \u52a0\u5bc6\u66ff\u4ee3\u660e\u6587 NTP\uff0c\u7528\u8bbf\u95ee\u63a7\u5236\u9650\u5236\u65f6\u95f4\u6e90\uff0c\u5e76\u5b9a\u671f\u68c0\u67e5 NTS \u6807\u8bb0\uff0c\u5c31\u80fd\u628a\u65f6\u95f4\u6b3a\u9a97\u98ce\u9669\u63a7\u5236\u5728\u53ef\u63a5\u53d7\u8303\u56f4\u5185\u3002\u5982\u679c\u4f60\u9700\u8981\u66f4\u8be6\u7ec6\u7684\u914d\u7f6e\u793a\u4f8b\u6216\u9047\u5230\u7279\u5b9a\u53d1\u884c\u7248\u7684\u517c\u5bb9\u95ee\u9898\uff0c\u53ef\u4ee5\u8003\u8651\u67e5\u9605\u5b98\u65b9\u6587\u6863\uff0c\u6216\u76f4\u63a5\u8054\u7cfb\u6211\u4eec\u7684\u6280\u672f\u652f\u6301\u56e2\u961f\u83b7\u53d6\u5e2e\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8be6\u89e3\u5982\u4f55\u7528 NTS \u52a0\u5bc6\u4e0e\u8bbf\u95ee\u63a7\u5236\u52a0\u56fa chrony \u65f6\u95f4\u540c\u6b65\uff0c\u9632\u6b62\u65f6\u95f4\u6b3a\u9a97\u4e0e\u4e2d\u95f4\u4eba\u653b\u51fb\uff0c\u4fdd\u969c\u670d\u52a1\u5668\u65f6\u95f4\u53ef\u4fe1\u3002<\/p>\n","protected":false},"author":2,"featured_media":32986,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3822],"tags":[4990,4989,5013,5014,4091],"class_list":["post-32989","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-chrony","tag-ntp","tag-nts","tag-5014","tag-4091"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/chrony-nts-time-sync-security-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/32989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/comments?post=32989"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/32989\/revisions"}],"predecessor-version":[{"id":32990,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/32989\/revisions\/32990"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/32986"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=32989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=32989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=32989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}