{"id":26304,"date":"2025-04-19T15:06:51","date_gmt":"2025-04-19T07:06:51","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/26304.html"},"modified":"2025-04-19T15:06:51","modified_gmt":"2025-04-19T07:06:51","slug":"chrony%e6%9c%8d%e5%8a%a1%e5%99%a8%ef%bc%88linux%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/26304.html","title":{"rendered":"chrony\u670d\u52a1\u5668\uff08linux\uff09"},"content":{"rendered":"<h3>\u7b80\u4ecb<\/h3>\n<h4>\u91cd\u8981\u6027<\/h4>\n<ul>\n<li>\n<p>\u7531\u4e8eIT\u7cfb\u7edf\u4e2d&#xff0c;\u51c6\u786e\u7684\u8ba1\u65f6\u975e\u5e38\u91cd\u8981&#xff0c;\u6709\u5f88\u591a\u79cd\u539f\u56e0\u9700\u8981\u51c6\u786e\u8ba1\u65f6&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5728\u7f51\u7edc\u4f20\u8f93\u4e2d&#xff0c;\u6570\u636e\u5305\u62ec\u548c\u65e5\u5fd7\u9700\u8981\u51c6\u786e\u7684\u65f6\u95f4\u6233<\/p>\n<\/li>\n<li>\n<p>\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u4e2d&#xff0c;\u5982\u8ba2\u5355\u4fe1\u606f&#xff0c;\u4ea4\u6613\u4fe1\u606f\u7b49 \u90fd\u9700\u8981\u51c6\u786e\u7684\u65f6\u95f4\u6233<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>Linux\u7684\u4e24\u4e2a\u65f6\u949f<\/h4>\n<ul>\n<li>\n<p>\u786c\u4ef6\u65f6\u949fRTC (Real Time Clock)&#xff1a;\u5373BIOS\u65f6\u949f&#xff0c;\u4e5f\u5c31\u662f\u6211\u4eec\u4e3b\u677f\u4e2d\u7528\u7535\u6c60\u4f9b\u7535\u7684\u65f6\u949f&#xff0c;\u662f\u5c06\u65f6\u95f4\u5199\u5165\u5230BIOS\u4e2d&#xff0c;\u7cfb\u7edf\u65ad\u7535\u540e\u65f6\u95f4\u4e0d\u4f1a\u4e22\u5931&#xff0c;\u53ef\u4ee5\u5728\u5f00\u673a\u65f6\u901a\u8fc7\u4e3b\u677f\u7a0b\u5e8f\u4e2d\u8fdb\u884c\u8bbe\u7f6e<\/p>\n<\/li>\n<\/ul>\n<p># \u67e5\u770b\u786c\u4ef6\u65f6\u95f4<br \/>\n[root&#064;server ~]# hwclock<br \/>\n2023-05-30 09:48:32.535594&#043;08:00 <\/p>\n<ul>\n<li>\n<p>\u7cfb\u7edf\u65f6\u949f (System Clock) &#xff1a;\u987e\u540d\u601d\u4e49\u4e5f\u5c31\u662fLinux\u7cfb\u7edf\u5185\u6838\u65f6\u949f\u3001\u8f6f\u4ef6\u65f6\u949f&#xff0c;\u662f\u7531Linux\u5185\u6838\u6765\u63d0\u4f9b\u7684&#xff0c;\u7cfb\u7edf\u65f6\u949f\u662f\u57fa\u4e8e\u5185\u5b58&#xff0c;\u5982\u679c\u7cfb\u7edf\u65ad\u7535\u65f6\u95f4\u5c31\u4f1a\u4e22\u5931<\/p>\n<\/li>\n<\/ul>\n<p># \u67e5\u770b\u7cfb\u7edf\u65f6\u95f4<br \/>\n[root&#064;server ~]# date<br \/>\n2023\u5e74 05\u6708 30\u65e5 \u661f\u671f\u4e8c 09:50:50 CST<br \/>\n\u200b<br \/>\n[root&#064;server ~]# date  -s  10:00 \u00a0  # \u4fee\u6539\u4e3a\u9519\u8bef\u7684\u65f6\u95f4<br \/>\n2023\u5e74 05\u6708 30\u65e5 \u661f\u671f\u4e8c 10:00:00 CST<br \/>\n[root&#064;server ~]# date<br \/>\n2023\u5e74 05\u6708 30\u65e5 \u661f\u671f\u4e8c 10:00:01 CST<br \/>\n[root&#064;server ~]# hwclock  -s \u00a0 \u00a0 \u00a0  # \u5411\u786c\u4ef6\u65f6\u95f4\u540c\u6b65<br \/>\n[root&#064;server ~]# date<br \/>\n2023\u5e74 05\u6708 30\u65e5 \u661f\u671f\u4e8c 09:51:50 CST <\/p>\n<h4>\u8bbe\u7f6e\u65e5\u671f\u65f6\u95f4<\/h4>\n<h5>timedatectl\u547d\u4ee4\u8bbe\u7f6e<\/h5>\n<p># [root&#064;server ~]# timedatectl  # \u663e\u793a\u5f53\u524d\u7684\u65e5\u671f\u548c\u65f6\u95f4<br \/>\n         \u00a0 Local time: \u4e09 2023-11-15 13:00:26 CST \u00a0 \u00a0 \u00a0 # \u672c\u5730\u65f6\u95f4<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Universal time: \u4e09 2023-11-15 05:00:26 UTC \u00a0 # \u4e16\u754c\u65f6\u95f4<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 RTC time: \u4e09 2023-11-15 06:16:16 \u00a0 \u00a0 \u00a0 # \u786c\u4ef6\u65f6\u95f4<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  Time zone: Asia\/Shanghai (CST, &#043;0800) \u00a0 # \u65f6\u533a<br \/>\nSystem clock synchronized: yes \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0# \u65f6\u95f4\u662f\u5426\u5df2\u540c\u6b65<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  NTP service: active \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # \u65f6\u95f4\u540c\u6b65\u670d\u52a1\u5df2\u542f\u52a8<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0  RTC in local TZ: no # no\u8868\u793a\u786c\u4ef6\u65f6\u949f\u8bbe\u7f6e\u4e3a\u534f\u8c03\u4e16\u754c\u65f6&#xff08;UTC&#xff09;&#xff0c;yes\u8868\u793a\u786c\u4ef6\u65f6\u949f\u8bbe\u7f6e\u4e3a\u672c\u5730\u65f6\u95f4<br \/>\n\u200b<br \/>\n[root&#064;server ~]# systemctl status chronyd  # \u67e5\u770b\u65f6\u95f4\u540c\u6b65\u670d\u52a1\u72b6\u6001&#xff08;\u7531\u4e8e\u9ed8\u8ba4\u4f7f\u7528chrony\u670d\u52a1\u540c\u6b65\u65f6\u95f4&#xff0c;\u4e0d\u518d\u4f7f\u7528ntp\u670d\u52a1&#xff09;<br \/>\n\u200b<br \/>\n[root&#064;server ~]# timedatectl set-ntp no  # \u5173\u95ed\u65f6\u95f4\u540c\u6b65&#xff0c;\u4ee5\u65b9\u4fbf\u4fee\u6539\u65e5\u671f\u65f6\u95f4<br \/>\n\u200b<br \/>\n[root&#064;server ~]# systemctl status chronyd<br \/>\n\u200b<br \/>\n[root&#064;server ~]# timedatectl set-time &#034;2023-12-12&#034;  # \u8bbe\u7f6e\u65b0\u65e5\u671f<br \/>\n\u200b<br \/>\n[root&#064;server ~]# timedatectl set-time &#034;12:12:12&#034;<br \/>\n\u200b<br \/>\n[root&#064;server ~]# timedatectl<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Local time: \u4e8c 2023-12-12 12:12:22 CST<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Universal time: \u4e8c 2023-12-12 04:12:22 UTC<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 RTC time: \u4e8c 2023-12-12 04:12:23<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  Time zone: Asia\/Shanghai (CST, &#043;0800)<br \/>\nSystem clock synchronized: no<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  NTP service: inactive<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0  RTC in local TZ: no<br \/>\n\u200b<br \/>\n[root&#064;server ~]# timedatectl list-timezones | grep Asia # \u67e5\u770b\u53ef\u7528\u65f6\u533a<br \/>\n\u200b<br \/>\n[root&#064;server ~]# timedatectl set-timezone Asia\/Shanghai  # \u8bbe\u7f6e\u65f6\u533a<br \/>\n\u200b <\/p>\n<h5>date\u547d\u4ee4\u8bbe\u7f6e<\/h5>\n<p>[root&#064;server ~]# date  # \u663e\u793a<br \/>\n\u200b<br \/>\n[root&#064;server ~]# date &#043;&#034;%Y-%m-%d %H:%M:%S&#034;  # \u683c\u5f0f\u663e\u793a<br \/>\n\u200b<br \/>\n# \u8bbe\u7f6e\u65e5\u671f\u65f6\u95f4<br \/>\n[root&#064;server ~]# date  -s  2023-11-15<br \/>\n2023\u5e74 11\u6708 15\u65e5 \u661f\u671f\u4e09 00:00:00 CST<br \/>\n[root&#064;server ~]# date  -s  14:33:33<br \/>\n2023\u5e74 11\u6708 15\u65e5 \u661f\u671f\u4e09 14:33:33 CST<br \/>\n[root&#064;server ~]# date<br \/>\n2023\u5e74 11\u6708 15\u65e5 \u661f\u671f\u4e09 14:33:34 CST <\/p>\n<ul>\n<li>\n<p>\u6ce8\u610f&#xff1a;\u4ee5\u4fbf\u4e8e\u4ee5\u540e\u7684\u5b9e\u9a8c\u6b63\u5e38\u6267\u884c&#xff0c;\u53ef\u6062\u590d\u5feb\u7167\u540e\u7ee7\u7eed<\/p>\n<\/li>\n<\/ul>\n<h4>NTP<\/h4>\n<ul>\n<li>\n<p>NTP&#xff1a;&#xff08;Network Time Protocol&#xff0c;\u7f51\u7edc\u65f6\u95f4\u534f\u8bae&#xff09;\u662f\u7531RFC 1305\u5b9a\u4e49\u7684\u65f6\u95f4\u540c\u6b65\u534f\u8bae&#xff0c;\u7528\u6765\u5728\u5206\u5e03\u5f0f\u65f6\u95f4\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e4b\u95f4\u8fdb\u884c\u65f6\u95f4\u540c\u6b65\u3002<\/p>\n<\/li>\n<li>\n<p>&#061;&#061;NTP\u57fa\u4e8eUDP\u62a5\u6587\u8fdb\u884c\u4f20\u8f93&#xff0c;\u4f7f\u7528\u7684UDP\u7aef\u53e3\u53f7\u4e3a123&#061;&#061;<\/p>\n<\/li>\n<li>\n<p>NTP\u53ef\u4ee5\u5bf9\u7f51\u7edc\u5185\u6240\u6709\u5177\u6709\u65f6\u949f\u7684\u8bbe\u5907\u8fdb\u884c\u65f6\u949f\u540c\u6b65&#xff0c;\u4f7f\u7f51\u7edc\u5185\u6240\u6709\u8bbe\u5907\u7684\u65f6\u949f\u4fdd\u6301\u4e00\u81f4&#xff0c;\u4ece\u800c\u4f7f\u8bbe\u5907\u80fd\u591f\u63d0\u4f9b\u57fa\u4e8e\u7edf\u4e00\u65f6\u95f4\u7684\u591a\u79cd\u5e94\u7528&#xff0c;\u5bf9\u4e8e\u8fd0\u884cNTP\u7684\u672c\u5730\u7cfb\u7edf&#xff0c;\u65e2\u53ef\u4ee5\u63a5\u53d7\u6765\u81ea\u5176\u4ed6\u65f6\u949f\u6e90\u7684\u540c\u6b65&#xff0c;\u53c8\u53ef\u4ee5\u4f5c\u4e3a\u65f6\u949f\u6e90\u540c\u6b65\u5176\u4ed6\u7684\u65f6\u949f&#xff0c;\u5e76\u4e14\u53ef\u4ee5\u548c\u5176\u4ed6\u8bbe\u5907\u4e92\u76f8\u540c\u6b65\u3002<\/p>\n<\/li>\n<li>\n<p>NTP\u7684\u5176\u7cbe\u5ea6\u5728\u5c40\u57df\u7f51\u5185\u53ef\u8fbe0.1ms&#xff0c;\u5728\u4e92\u8054\u7f51\u4e0a\u7edd\u5927\u591a\u6570\u7684\u5730\u65b9\u5176\u7cbe\u5ea6\u53ef\u4ee5\u8fbe\u52301-50ms<\/p>\n<\/li>\n<\/ul>\n<h4>Chrony\u4ecb\u7ecd<\/h4>\n<ul>\n<li>\n<p>chrony\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u81ea\u7531\u8f6f\u4ef6&#xff0c;\u5b83\u80fd\u5e2e\u52a9\u4f60\u4fdd\u6301\u7cfb\u7edf\u65f6\u949f\u4e0e\u65f6\u949f\u670d\u52a1\u5668&#xff08;NTP&#xff09;\u540c\u6b65&#xff0c;\u56e0\u6b64\u8ba9\u4f60\u7684\u65f6\u95f4\u4fdd\u6301\u7cbe\u786e\u3002<\/p>\n<\/li>\n<li>\n<p>chrony\u7531\u4e24\u4e2a\u7a0b\u5e8f\u7ec4\u6210&#xff0c;\u5206\u522b\u662fchronyd\u548cchronyc<\/p>\n<ul>\n<li>\n<p>chronyd&#xff1a;\u662f\u4e00\u4e2a\u540e\u53f0\u8fd0\u884c\u7684\u5b88\u62a4\u8fdb\u7a0b&#xff0c;\u7528\u4e8e\u8c03\u6574\u5185\u6838\u4e2d\u8fd0\u884c\u7684\u7cfb\u7edf\u65f6\u949f\u548c\u65f6\u949f\u670d\u52a1\u5668\u540c\u6b65\u3002\u5b83\u786e\u5b9a\u8ba1\u7b97\u673a\u589e\u51cf\u65f6\u95f4\u7684\u6bd4\u7387&#xff0c;\u5e76\u5bf9\u6b64\u8fdb\u884c\u8865\u507f\u3002<\/p>\n<\/li>\n<li>\n<p>chronyc&#xff1a;\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7528\u6237\u754c\u9762&#xff0c;\u7528\u4e8e\u76d1\u63a7\u6027\u80fd\u5e76\u8fdb\u884c\u591a\u6837\u5316\u7684\u914d\u7f6e\u3002\u5b83\u53ef\u4ee5\u5728chronyd\u5b9e\u4f8b\u63a7\u5236\u7684\u8ba1\u7b97\u673a\u4e0a\u5de5\u4f5c&#xff0c;\u4e5f\u53ef\u4ee5\u5728\u4e00\u53f0\u4e0d\u540c\u7684\u8fdc\u7a0b\u8ba1\u7b97\u673a\u4e0a\u5de5\u4f5c<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6ce8\u610f&#xff1a;Chrony\u4e0eNTP\u90fd\u662f\u65f6\u95f4\u540c\u6b65\u8f6f\u4ef6&#xff0c;\u4e24\u4e2a\u8f6f\u4ef6\u4e0d\u80fd\u591f\u540c\u65f6\u5f00\u542f&#xff0c;\u4f1a\u51fa\u73b0\u65f6\u95f4\u51b2\u7a81&#xff0c;openeuler\u4e2d\u9ed8\u8ba4\u4f7f\u7528chrony\u4f5c\u4e3a\u65f6\u95f4\u670d\u52a1\u5668&#xff0c;\u4e0d\u5728\u652f\u6301NTP\u8f6f\u4ef6\u5305<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# systemctl status ntp  # \u67e5\u770bntp\u72b6\u6001 <\/p>\n<h3>\u5b89\u88c5\u4e0e\u914d\u7f6e<\/h3>\n<h4>\u5b89\u88c5&#xff1a;<\/h4>\n<p># \u9ed8\u8ba4\u5df2\u5b89\u88c5&#xff0c;\u82e5\u9700\u8981\u5b89\u88c5\u5219\u53ef\u6267\u884c&#xff1a;<br \/>\n\u200b<br \/>\n[root&#064;server ~]# yum  install  chrony  -y<br \/>\n\u200b<br \/>\n[root&#064;server ~]# systemctl start  chronyd<br \/>\n\u200b<br \/>\n[root&#064;server ~]# systemctl enable  chronyd <\/p>\n<h4>Chrony\u914d\u7f6e\u6587\u4ef6\u5206\u6790<\/h4>\n<ul>\n<li>\n<p>\u4e3b\u914d\u7f6e\u6587\u4ef6&#xff1a;\/etc\/chrony.conf<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# vim  \/etc\/chrony.conf<br \/>\n\u200b<br \/>\n# \u4f7f\u7528 pool.ntp.org \u9879\u76ee\u4e2d\u7684\u516c\u5171\u670d\u52a1\u5668\u3002<br \/>\n# \u6216\u8005\u4f7f\u7528server\u5f00\u5934\u7684\u670d\u52a1\u5668&#xff0c;\u7406\u8bba\u4e0a\u60f3\u6dfb\u52a0\u591a\u5c11\u65f6\u95f4\u670d\u52a1\u5668\u90fd\u53ef\u4ee5<br \/>\n# iburst\u8868\u793a\u7684\u662f\u9996\u6b21\u540c\u6b65\u7684\u65f6\u5019\u5feb\u901f\u540c\u6b65<br \/>\npool pool.ntp.org iburst<br \/>\n\u200b<br \/>\n# \u6839\u636e\u5b9e\u9645\u65f6\u95f4\u8ba1\u7b97\u51fa\u670d\u52a1\u5668\u589e\u51cf\u65f6\u95f4\u7684\u6bd4\u7387&#xff0c;\u7136\u540e\u8bb0\u5f55\u5230\u4e00\u4e2a\u6587\u4ef6\u4e2d&#xff0c;\u5728\u7cfb\u7edf\u91cd\u542f\u540e\u4e3a\u7cfb\u7edf\u505a\u51fa\u6700\u4f73\u65f6\u95f4 \u8865\u507f\u8c03\u6574\u3002<br \/>\ndriftfile \/var\/lib\/chrony\/drift<br \/>\n\u200b<br \/>\n# \u5982\u679c\u7cfb\u7edf\u65f6\u949f\u7684\u504f\u79fb\u91cf\u5927\u4e8e1\u79d2&#xff0c;\u5219\u5141\u8bb8\u7cfb\u7edf\u65f6\u949f\u5728\u524d\u4e09\u6b21\u66f4\u65b0\u4e2d\u6b65\u8fdb\u3002<br \/>\n# Allow the system clock to be stepped in the first three updates if its offset is larger than 1 second.<br \/>\nmakestep 1.0 3<br \/>\n\u200b<br \/>\n# \u542f\u7528\u5b9e\u65f6\u65f6\u949f&#xff08;RTC&#xff09;\u7684\u5185\u6838\u540c\u6b65\u3002<br \/>\n# Enable kernel synchronization of the real-time clock (RTC).<br \/>\nrtcsync<br \/>\n\u200b<br \/>\n# \u901a\u8fc7\u4f7f\u7528 hwtimestamp \u6307\u4ee4\u542f\u7528\u786c\u4ef6\u65f6\u95f4\u6233<br \/>\n# Enable hardware timestamping on all interfaces that support it.<br \/>\n#hwtimestamp *<br \/>\n# Increase the minimum number of selectable sources required to adjust the system clock.<br \/>\n#minsources 2<br \/>\n\u200b<br \/>\n# \u6307\u5b9a NTP \u5ba2\u6237\u7aef\u5730\u5740&#xff0c;\u4ee5\u5141\u8bb8\u6216\u62d2\u7edd\u8fde\u63a5\u5230\u626e\u6f14\u65f6\u949f\u670d\u52a1\u5668\u7684\u673a\u5668<br \/>\n# Allow NTP client access from local network.<br \/>\n#allow 192.168.48.0\/24<br \/>\n\u200b<br \/>\n# Serve time even if not synchronized to a time source.<br \/>\n# local stratum 10<br \/>\n\u200b<br \/>\n# \u6307\u5b9a\u5305\u542b NTP \u8eab\u4efd\u9a8c\u8bc1\u5bc6\u94a5\u7684\u6587\u4ef6\u3002<br \/>\n# Specify file containing keys for NTP authentication.<br \/>\n# keyfile \/etc\/chrony.keys<br \/>\n\u200b<br \/>\n# \u6307\u5b9a\u65e5\u5fd7\u6587\u4ef6\u7684\u76ee\u5f55\u3002<br \/>\n# Specify directory for log files.<br \/>\nlogdir \/var\/log\/chrony<br \/>\n\u200b<br \/>\n# \u9009\u62e9\u65e5\u5fd7\u6587\u4ef6\u8981\u8bb0\u5f55\u7684\u4fe1\u606f\u3002<br \/>\n# Select which information is logged.<br \/>\n# log measurements statistics tracking <\/p>\n<h4>\u540c\u6b65\u65f6\u95f4\u670d\u52a1\u5668<\/h4>\n<h5>\u6388\u65f6\u4e2d\u5fc3<\/h5>\n<p>210.72.145.44 \u56fd\u5bb6\u6388\u65f6\u4e2d\u5fc3<br \/>\nntp.aliyun.com \u963f\u91cc\u4e91<br \/>\ns1a.time.edu.cn \u5317\u4eac\u90ae\u7535\u5927\u5b66<br \/>\ns1b.time.edu.cn \u6e05\u534e\u5927\u5b66<br \/>\ns1c.time.edu.cn \u5317\u4eac\u5927\u5b66<br \/>\ns1d.time.edu.cn \u4e1c\u5357\u5927\u5b66<br \/>\ns1e.time.edu.cn \u6e05\u534e\u5927\u5b66<br \/>\ns2a.time.edu.cn \u6e05\u534e\u5927\u5b66<br \/>\ns2b.time.edu.cn \u6e05\u534e\u5927\u5b66<br \/>\ns2c.time.edu.cn \u5317\u4eac\u90ae\u7535\u5927\u5b66<br \/>\ns2d.time.edu.cn \u897f\u5357\u5730\u533a\u7f51\u7edc\u4e2d\u5fc3<br \/>\ns2e.time.edu.cn \u897f\u5317\u5730\u533a\u7f51\u7edc\u4e2d\u5fc3<br \/>\ns2f.time.edu.cn \u4e1c\u5317\u5730\u533a\u7f51\u7edc\u4e2d\u5fc3<br \/>\ns2g.time.edu.cn \u534e\u4e1c\u5357\u5730\u533a\u7f51\u7edc\u4e2d\u5fc3<br \/>\ns2h.time.edu.cn \u56db\u5ddd\u5927\u5b66\u7f51\u7edc\u7ba1\u7406\u4e2d\u5fc3<br \/>\ns2j.time.edu.cn \u5927\u8fde\u7406\u5de5\u5927\u5b66\u7f51\u7edc\u4e2d\u5fc3<br \/>\ns2k.time.edu.cn CERNET\u6842\u6797\u4e3b\u8282\u70b9<br \/>\ns2m.time.edu.cn \u5317\u4eac\u5927\u5b66<br \/>\nntp.sjtu.edu.cn 202.120.2.101 \u4e0a\u6d77\u4ea4\u901a\u5927\u5b66 <\/p>\n<h5>\u5b9e\u9a8c1<\/h5>\n<ul>\n<li>\n<p>\u540c\u6b65\u65f6\u95f4<\/p>\n<\/li>\n<li>\n<p>\u7b2c\u4e00\u6b65&#xff1a;\u5148\u4fee\u6539\u6210\u9519\u8bef\u65f6\u95f4<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# date  -s  10:30<br \/>\n2023\u5e74 05\u6708 30\u65e5 \u661f\u671f\u4e8c 10:30:00 CST <\/p>\n<ul>\n<li>\n<p>\u7b2c\u4e8c\u6b65&#xff1a;\u7f16\u5236chrony\u7684\u914d\u7f6e\u6587\u4ef6<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# vim  \/etc\/chrony.conf<br \/>\n# \u5b9a\u4f4d\u7b2c3\u884c&#xff0c;\u5220\u9664\u540e\u6dfb\u52a0\u963f\u91cc\u7684\u65f6\u95f4\u540c\u6b65\u670d\u52a1\u5730\u5740<br \/>\nserver \u00a0 ntp.aliyun.com \u00a0 iburst<br \/>\n\u200b<br \/>\n# \u6ce8\u610f&#xff1a;\u4e5f\u53ef\u4ee5\u5148\u6e05\u7a7achrony.conf\u5185\u5bb9&#xff0c;\u5c06\u963f\u91cc\u5f00\u6e90\u63d0\u4f9b\u7684\u65f6\u95f4\u670d\u52a1\u5668\u63a8\u8350\u914d\u7f6e\u590d\u5236\u7c98\u8d34\u5230\u8be5\u6587\u4ef6\u4e2d<br \/>\nserver ntp.aliyun.com iburst<br \/>\nstratumweight 0<br \/>\ndriftfile \/var\/lib\/chrony\/drift<br \/>\nrtcsync<br \/>\nmakestep 10 3<br \/>\nbindcmdaddress 127.0.0.1<br \/>\nbindcmdaddress ::1<br \/>\nkeyfile \/etc\/chrony.keys<br \/>\ncommandkey 1<br \/>\ngeneratecommandkey<br \/>\nlogchange 0.5<br \/>\nlogdir \/var\/log\/chrony <\/p>\n<ul>\n<li>\n<p>\u7b2c\u4e09\u6b65&#xff1a;\u91cd\u542f\u670d\u52a1<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# systemctl restart  chronyd <\/p>\n<ul>\n<li>\n<p>\u7b2c\u4e09\u6b65&#xff1a;\u65f6\u95f4\u540c\u6b65<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# chronyc  sources  -v<br \/>\n\u200b<br \/>\n  .&#8211; Source mode \u00a0&#039;^&#039; &#061; server, &#039;&#061;&#039; &#061; peer, &#039;#&#039; &#061; local clock.<br \/>\n \/ .- Source state &#039;*&#039; &#061; current best, &#039;&#043;&#039; &#061; combined, &#039;-&#039; &#061; not combined,<br \/>\n| \/ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 &#039;x&#039; &#061; may be in error, &#039;~&#039; &#061; too variable, &#039;?&#039; &#061; unusable.<br \/>\n|| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 .- xxxx [ yyyy ] &#043;\/- zzzz<br \/>\n|| \u00a0 \u00a0  Reachability register (octal) -. \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 |  xxxx &#061; adjusted offset,<br \/>\n|| \u00a0 \u00a0  Log2(Polling interval) &#8211;. \u00a0 \u00a0  | \u00a0 \u00a0 \u00a0 \u00a0  |  yyyy &#061; measured offset,<br \/>\n|| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  \\\\ \u00a0 \u00a0 | \u00a0 \u00a0 \u00a0 \u00a0  |  zzzz &#061; estimated error.<br \/>\n|| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 | \u00a0  | \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \\\\<br \/>\nMS Name\/IP address \u00a0 \u00a0 \u00a0  Stratum Poll Reach LastRx Last sample \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<br \/>\n&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;<br \/>\n^* 203.107.6.88 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a02 \u00a0 6 \u00a0 \u00a017 \u00a0 \u00a056 \u00a0 &#043;493us[ -335us] &#043;\/- \u00a0 34ms <\/p>\n<ul>\n<li>\n<p>\u7b2c\u4e94\u6b65&#xff1a;\u67e5\u770b\u65f6\u95f4\u662f\u5426\u540c\u6b65<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# timedatectl \u00a0 status<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Local time: \u4e8c 2023-05-30 10:24:39 CST<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Universal time: \u4e8c 2023-05-30 02:24:39 UTC<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 RTC time: \u4e8c 2023-05-30 02:24:40<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  Time zone: Asia\/Shanghai (CST, &#043;0800)<br \/>\nSystem clock synchronized: yes \u00a0 \u00a0# yes  \u8868\u540d\u5df2\u540c\u6b65<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  NTP service: active<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0  RTC in local TZ: no<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<br \/>\n[root&#064;server ~]# date<br \/>\n2023\u5e74 05\u6708 30\u65e5 \u661f\u671f\u4e8c 10:26:14 CST \u00a0 \u00a0 \u00a0 \u00a0  <\/p>\n<h5>\u5b9e\u9a8c2<\/h5>\n<ul>\n<li>\n<p>\u642d\u5efa\u672c\u5730\u65f6\u95f4\u540c\u6b65\u670d\u52a1\u5668<\/p>\n<\/li>\n<li>\n<p>\u67b6\u6784<\/p>\n<\/li>\n<\/ul>\n<table>\n<tr>\u6027\u8d28IP\u5730\u5740\u540c\u6b65\u5bf9\u8c61<\/tr>\n<tbody>\n<tr>\n<td>\u670d\u52a1\u7aefserver<\/td>\n<td>192.168.48.130<\/td>\n<td>ntp.aliyun.com<\/td>\n<\/tr>\n<tr>\n<td>\u5ba2\u6237\u7aefnode1<\/td>\n<td>192.168.48.131<\/td>\n<td>192.168.48.130<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\n<p>\u8981\u6c42<\/p>\n<ul>\n<li>\n<p>\u670d\u52a1\u7aefserver\u5411\u963f\u91cc\u65f6\u95f4\u670d\u52a1\u5668\u8fdb\u884c\u65f6\u95f4\u540c\u6b65<\/p>\n<\/li>\n<li>\n<p>\u5ba2\u6237\u7aefnode1\u5411\u670d\u52a1\u7aefserver\u8fdb\u884c\u65f6\u95f4\u540c\u6b65<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7b2c\u4e00\u6b65&#xff1a;\u5b9a\u4f4d\u670d\u52a1\u7aefserver<\/p>\n<\/li>\n<\/ul>\n<p># \u5b89\u88c5\u8f6f\u4ef6<br \/>\n[root&#064;server ~]# yum  install  chrony  -y \u00a0 # \u9ed8\u8ba4\u5df2\u5b89\u88c5<br \/>\n\u200b<br \/>\n# \u7f16\u8f91\u914d\u7f6e\u6587\u4ef6&#xff0c;\u5b9a\u4f4d\u7b2c3\u884c&#xff0c;\u4fee\u6539\u4e3a\u963f\u91cc\u7684\u65f6\u95f4\u670d\u52a1\u5730\u5740<br \/>\n[root&#064;server ~]# vim  \/etc\/chrony.conf<br \/>\nserver  ntp.aliyun.com  iburst<br \/>\n\u200b<br \/>\n# \u91cd\u542f\u670d\u52a1<br \/>\n[root&#064;server ~]# systemctl restart chronyd<br \/>\n\u200b<br \/>\n# \u6d4b\u8bd5<br \/>\n[root&#064;server ~]# chronyc  sources  -v<br \/>\n\u200b<br \/>\n[root&#064;server ~]# timedatectl  status<br \/>\n\u200b<br \/>\n# \u8bbe\u7f6e\u5141\u8bb8\u5ba2\u6237\u7aef\u65f6\u95f4\u540c\u6b65<br \/>\n[root&#064;server ~]# vim  \/etc\/chrony.conf<br \/>\n 26 allow 192.168.48.131\/24 \u00a0# \u5b9a\u4f4d\u7b2c26\u884c&#xff0c;\u8bbe\u7f6e\u8c01\u53ef\u4ee5\u8bbf\u95ee\u672c\u673a\u8fdb\u884c\u540c\u6b65<br \/>\n[root&#064;server ~]# systemctl restart chronyd <\/p>\n<ul>\n<li>\n<p>\u7b2c\u4e8c\u6b65&#xff1a;\u5b9a\u4f4d\u5ba2\u6237\u7aefnode1<\/p>\n<\/li>\n<\/ul>\n<p># \u5b89\u88c5\u8f6f\u4ef6<br \/>\n[root&#064;node1 ~]# yum  install  chrony  -y \u00a0 \u00a0<br \/>\n\u200b<br \/>\n# \u7f16\u8f91\u914d\u7f6e\u6587\u4ef6<br \/>\n[root&#064;node1 ~]# vim  \/etc\/chrony.conf \u00a0 \u00a0 # \u4fee\u6539\u7b2c3\u884c\u4e3aserver\u7684\u5730\u5740<br \/>\nserver \u00a0192.168.48.130  iburst<br \/>\n\u200b<br \/>\n# \u91cd\u542f\u670d\u52a1<br \/>\n[root&#064;node1 ~]# systemctl restart  chronyd<br \/>\n\u200b<br \/>\n# \u6d4b\u8bd5<br \/>\n[root&#064;node1 ~]# chronyc  sources  -v<br \/>\n\u200b<br \/>\n  .&#8211; Source mode \u00a0&#039;^&#039; &#061; server, &#039;&#061;&#039; &#061; peer, &#039;#&#039; &#061; local clock.<br \/>\n \/ .- Source state &#039;*&#039; &#061; current best, &#039;&#043;&#039; &#061; combined, &#039;-&#039; &#061; not combined,<br \/>\n| \/ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 &#039;x&#039; &#061; may be in error, &#039;~&#039; &#061; too variable, &#039;?&#039; &#061; unusable.<br \/>\n|| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 .- xxxx [ yyyy ] &#043;\/- zzzz<br \/>\n|| \u00a0 \u00a0  Reachability register (octal) -. \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 |  xxxx &#061; adjusted offset,<br \/>\n|| \u00a0 \u00a0  Log2(Polling interval) &#8211;. \u00a0 \u00a0  | \u00a0 \u00a0 \u00a0 \u00a0  |  yyyy &#061; measured offset,<br \/>\n|| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  \\\\ \u00a0 \u00a0 | \u00a0 \u00a0 \u00a0 \u00a0  |  zzzz &#061; estimated error.<br \/>\n|| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 | \u00a0  | \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \\\\<br \/>\nMS Name\/IP address \u00a0 \u00a0 \u00a0 \u00a0 Stratum Poll Reach LastRx Last sample \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<br \/>\n&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;<br \/>\n^* 192.168.48.130 \u00a0 \u00a0 \u00a0 \u00a0 \u00a03 \u00a0 6 \u00a0 \u00a017 \u00a0 \u00a039 \u00a0 \u00a0&#043;20us[ &#043;252us] &#043;\/- \u00a0 38ms<br \/>\n\u200b<br \/>\n\u200b<br \/>\n[root&#064;node1 ~]# timedatectl \u00a0 status<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Local time: \u4e8c 2023-05-30 11:08:37 CST<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Universal time: \u4e8c 2023-05-30 03:08:37 UTC<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 RTC time: \u4e8c 2023-05-30 03:08:38<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  Time zone: Asia\/Shanghai (CST, &#043;0800)<br \/>\nSystem clock synchronized: yes<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  NTP service: active<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0  RTC in local TZ: no <\/p>\n<ul>\n<li>\n<p>\u6ce8\u610f&#xff1a;\u5ba2\u6237\u7aef\u540c\u6b65\u5931\u8d25\u7684\u539f\u56e0<\/p>\n<ul>\n<li>\n<p>\u68c0\u67e5\u7f51\u7edc\u8fde\u901a\u6027&#xff0c;\u9700\u8981\u80fdping\u901a<\/p>\n<\/li>\n<li>\n<p>\u68c0\u67e5\u670d\u52a1\u7aef\u7684allow\u53c2\u6570<\/p>\n<\/li>\n<li>\n<p>\u9700\u8981\u91cd\u542f\u670d\u52a1<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>chronyc\u547d\u4ee4<\/h4>\n<h5>\u67e5\u770b\u65f6\u95f4\u670d\u52a1\u5668&#xff1a;<\/h5>\n<p>[root&#064;server ~]# chronyc  sources  -v  # -v\u53c2\u6570\u8868\u793a\u663e\u793a\u5185\u5bb9\u662f\u5426\u6709\u89e3\u91ca<br \/>\n\u200b<br \/>\n  .&#8211; Source mode \u00a0&#039;^&#039; &#061; server, &#039;&#061;&#039; &#061; peer, &#039;#&#039; &#061; local clock.<br \/>\n \/ .- Source state &#039;*&#039; &#061; current best, &#039;&#043;&#039; &#061; combined, &#039;-&#039; &#061; not combined,<br \/>\n| \/ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 &#039;x&#039; &#061; may be in error, &#039;~&#039; &#061; too variable, &#039;?&#039; &#061; unusable.<br \/>\n|| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 .- xxxx [ yyyy ] &#043;\/- zzzz<br \/>\n|| \u00a0 \u00a0  Reachability register (octal) -. \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 |  xxxx &#061; adjusted offset,<br \/>\n|| \u00a0 \u00a0  Log2(Polling interval) &#8211;. \u00a0 \u00a0  | \u00a0 \u00a0 \u00a0 \u00a0  |  yyyy &#061; measured offset,<br \/>\n|| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  \\\\ \u00a0 \u00a0 | \u00a0 \u00a0 \u00a0 \u00a0  |  zzzz &#061; estimated error.<br \/>\n|| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 | \u00a0  | \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \\\\<br \/>\nMS Name\/IP address \u00a0 \u00a0 \u00a0 \u00a0 Stratum Poll Reach LastRx Last sample \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<br \/>\n&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;<br \/>\n\u200b <\/p>\n<h5>chronyc sources\u8f93\u51fa\u5206\u6790<\/h5>\n<ul>\n<li>\n<p>M&#xff1a;\u8fd9\u8868\u793a\u4fe1\u53f7\u6e90\u7684\u6a21\u5f0f\u3002^\u8868\u793a\u670d\u52a1\u5668&#xff0c;&#061;\u8868\u793a\u5bf9\u7b49\u65b9&#xff0c;&#xff03;\u8868\u793a\u672c\u5730\u8fde\u63a5\u7684\u53c2\u8003\u65f6\u949f\u3002<\/p>\n<\/li>\n<li>\n<p>S&#xff1a;\u6b64\u5217\u6307\u793a\u6e90\u7684\u72b6\u6001<\/p>\n<\/li>\n<\/ul>\n<table>\n<tr>*chronyd\u5f53\u524d\u540c\u6b65\u5230\u7684\u6e90<\/tr>\n<tbody>\n<tr>\n<td>&#043;<\/td>\n<td>\u8868\u793a\u53ef\u63a5\u53d7\u7684\u4fe1\u53f7\u6e90&#xff0c;\u4e0e\u9009\u5b9a\u7684\u4fe1\u53f7\u6e90\u7ec4\u5408\u5728\u4e00\u8d77<\/td>\n<\/tr>\n<tr>\n<td>&#8211;<\/td>\n<td>\u8868\u793a\u88ab\u5408\u5e76\u7b97\u6cd5\u6392\u9664\u7684\u53ef\u63a5\u53d7\u6e90<\/td>\n<\/tr>\n<tr>\n<td>&#xff1f;<\/td>\n<td>\u8868\u793a\u5df2\u5931\u53bb\u8fde\u63a5\u7684\u6e90<\/td>\n<\/tr>\n<tr>\n<td>x<\/td>\n<td>\u8868\u793achronyd\u8ba4\u4e3a\u662f\u865a\u5047\u884c\u60c5\u7684\u65f6\u949f&#xff08;\u5373&#xff0c;\u5176\u65f6\u95f4\u4e0e\u5927\u591a\u6570\u5176\u4ed6\u6765\u6e90\u4e0d\u4e00\u81f4&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>~<\/td>\n<td>\u8868\u793a\u65f6\u95f4\u4f3c\u4e4e\u5177\u6709\u592a\u591a\u53ef\u53d8\u6027\u7684\u6765\u6e90<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\n<p>Name\/IP address&#xff1a;\u663e\u793a\u670d\u52a1\u5668\u6e90\u7684\u540d\u79f0\u6216IP\u5730\u5740<\/p>\n<\/li>\n<li>\n<p>Stratum&#xff1a;\u8868\u793a\u6e90\u7684\u5c42\u7ea7&#xff0c;\u5c42\u7ea71\u8868\u793a\u672c\u5730\u8fde\u63a5\u7684\u53c2\u8003\u65f6\u949f&#xff0c;\u7b2c2\u5c42\u8868\u793a\u901a\u8fc7\u7b2c1\u5c42\u7ea7\u8ba1\u7b97\u673a\u7684\u65f6\u949f\u5b9e\u73b0\u540c\u6b65&#xff0c;\u4f9d\u6b64\u7c7b\u63a8<\/p>\n<\/li>\n<li>\n<p>Poll&#xff1a;\u8868\u793a\u6e90\u8f6e\u8be2\u9891\u7387&#xff0c;\u4ee5\u79d2\u4e3a\u5355\u4f4d&#xff0c;\u503c\u662f\u57fa\u65702\u7684\u5bf9\u6570&#xff0c;\u4f8b\u5982\u503c6\u8868\u793a\u6bcf64\u79d2\u8fdb\u884c\u4e00\u6b21\u6d4b\u91cf&#xff0c;chronyd\u4f1a\u6839\u636e\u5f53\u65f6\u7684\u60c5\u51b5\u81ea\u52a8\u6539\u53d8\u8f6e\u8be2\u9891\u7387<\/p>\n<\/li>\n<li>\n<p>Reach&#xff1a;\u8868\u793a\u6e90\u7684\u53ef\u8fbe\u6027\u7684\u9501\u5b58\u503c&#xff08;\u516b\u8fdb\u5236\u6570\u503c&#xff09;&#xff0c;\u8be5\u9501\u5b58\u503c\u67098\u4f4d&#xff0c;\u5e76\u5728\u5f53\u63a5\u6536\u6216\u4e22\u5931\u4e00\u6b21\u65f6\u8fdb\u884c\u4e00\u6b21\u66f4\u65b0&#xff0c;\u503c377\u8868\u793a\u6700\u540e\u516b\u6b21\u4f20\u8f93\u90fd\u6536\u5230\u4e86\u6709\u6548\u7684\u56de\u590d<\/p>\n<\/li>\n<li>\n<p>LastRx&#xff1a;\u8868\u793a\u4ece\u6e90\u6536\u5230\u6700\u8fd1\u7684\u4e00\u6b21\u7684\u65f6\u95f4&#xff0c;\u901a\u5e38\u662f\u51e0\u79d2\u949f&#xff0c;\u5b57\u6bcdm&#xff0c;h&#xff0c;d\u6216y\u5206\u522b\u8868\u793a\u5206\u949f&#xff0c;\u5c0f\u65f6&#xff0c;\u5929\u6216\u5e74<\/p>\n<\/li>\n<li>\n<p>Last sample&#xff1a;\u8868\u793a\u672c\u5730\u65f6\u949f\u4e0e\u4e0a\u6b21\u6d4b\u91cf\u65f6\u6e90\u7684\u504f\u79fb\u91cf&#xff0c;\u65b9\u62ec\u53f7\u5de6\u4fa7\u7684\u6570\u5b57\u8868\u793a\u539f\u59cb\u6d4b\u91cf\u503c&#xff0c;\u65b9\u62ec\u53f7\u53f3\u4fa7\u8868\u793a\u504f\u5dee\u503c&#xff0c;&#043;\/-\u6307\u793a\u5668\u540e\u9762\u7684\u6570\u5b57\u8868\u793a\u6d4b\u91cf\u4e2d\u7684\u8bef\u5dee\u8303\u56f4\u3002\u6b63\u504f\u79fb\u8868\u793a\u672c\u5730\u65f6\u949f\u4f4d\u4e8e\u6e90\u65f6\u949f\u4e4b\u524d<\/p>\n<\/li>\n<\/ul>\n<h4>\u5176\u5b83\u547d\u4ee4<\/h4>\n<ul>\n<li>\n<p>\u67e5\u770b\u65f6\u95f4\u670d\u52a1\u5668\u7684\u72b6\u6001<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# chronyc  sourcestats  -v <\/p>\n<ul>\n<li>\n<p>\u67e5\u770b\u65f6\u95f4\u670d\u52a1\u5668\u662f\u5426\u5728\u7ebf<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# chronyc  activity  -v <\/p>\n<ul>\n<li>\n<p>\u540c\u6b65\u7cfb\u7edf\u65f6\u949f<\/p>\n<\/li>\n<\/ul>\n<p>[root&#064;server ~]# chronyc  -a  makestep <\/p>\n<h3>\u5e38\u89c1\u65f6\u533a<\/h3>\n<ul>\n<li>\n<p>UTC \u6574\u4e2a\u5730\u7403\u5206\u4e3a\u4e8c\u5341\u56db\u65f6\u533a&#xff0c;\u6bcf\u4e2a\u65f6\u533a\u90fd\u6709\u81ea\u5df1\u7684\u672c\u5730\u65f6\u95f4\u3002\u5728\u56fd\u9645\u65e0\u7ebf\u7535\u901a\u4fe1\u573a\u5408&#xff0c;\u4e3a\u4e86\u7edf\u4e00\u8d77\u89c1&#xff0c;\u4f7f\u7528\u4e00\u4e2a\u7edf\u4e00\u7684\u65f6\u95f4&#xff0c;\u79f0\u4e3a\u901a\u7528\u534f\u8c03\u65f6(UTC, Universal Time Coordinated)\u3002<\/p>\n<\/li>\n<li>\n<p>GMT \u683c\u6797\u5a01\u6cbb\u6807\u51c6\u65f6\u95f4 (Greenwich Mean Time)\u6307\u4f4d\u4e8e\u82f1\u56fd\u4f26\u6566\u90ca\u533a\u7684\u683c\u6797\u5c3c\u6cbb\u5929\u6587\u53f0\u7684\u6807\u51c6\u65f6\u95f4&#xff0c;\u56e0\u4e3a\u672c\u521d\u5b50\u5348\u7ebf\u88ab\u5b9a\u4e49\u5728\u901a\u8fc7\u90a3\u91cc\u7684\u7ecf\u7ebf\u3002(UTC\u4e0eGMT\u65f6\u95f4\u57fa\u672c\u76f8\u540c&#xff0c;\u672c\u6587\u4e2d\u4e0d\u505a\u533a\u5206)<\/p>\n<\/li>\n<li>\n<p>CST \u4e2d\u56fd\u6807\u51c6\u65f6\u95f4 (China Standard Time)GMT &#043; 8 &#061; UTC &#043; 8 &#061; CST<\/p>\n<\/li>\n<li>\n<p>DST\u590f\u4ee4\u65f6(Daylight Saving Time) 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