{"id":3308,"date":"2018-03-31T13:19:14","date_gmt":"2018-03-31T05:19:14","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=3308"},"modified":"2018-03-31T13:19:14","modified_gmt":"2018-03-31T05:19:14","slug":"%e5%9c%a8-linux-%e4%b8%8a%e4%bd%bf%e7%94%a8-ntp-%e4%bf%9d%e6%8c%81%e7%b2%be%e7%a1%ae%e7%9a%84%e6%97%b6%e9%97%b4","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/uncategorized\/%e5%9c%a8-linux-%e4%b8%8a%e4%bd%bf%e7%94%a8-ntp-%e4%bf%9d%e6%8c%81%e7%b2%be%e7%a1%ae%e7%9a%84%e6%97%b6%e9%97%b4\/","title":{"rendered":"\u5728 Linux \u4e0a\u4f7f\u7528 NTP \u4fdd\u6301\u7cbe\u786e\u7684\u65f6\u95f4"},"content":{"rendered":"

\u5982\u4f55\u4fdd\u6301\u6b63\u786e\u7684\u65f6\u95f4\uff0c\u5982\u4f55\u4f7f\u7528 NTP \u548c systemd \u8ba9\u4f60\u7684\u8ba1\u7b97\u673a\u5728\u4e0d\u6ee5\u7528\u65f6\u95f4\u670d\u52a1\u5668\u7684\u524d\u63d0\u4e0b\u4fdd\u6301\u540c\u6b65\u3002<\/p>\n

\u5b83\u7684\u65f6\u95f4\u662f\u591a\u5c11\uff1f<\/h3>\n

\u8ba9 Linux \u6765\u544a\u8bc9\u4f60\u65f6\u95f4\u7684\u65f6\u5019\uff0c\u5b83\u662f\u5f88\u5947\u602a\u7684\u3002\u4f60\u53ef\u80fd\u8ba4\u4e3a\u662f\u4f7f\u7528\u00a0time<\/code>\u00a0\u547d\u4ee4\u6765\u544a\u8bc9\u4f60\u65f6\u95f4\uff0c\u5176\u5b9e\u5e76\u4e0d\u662f\uff0c\u56e0\u4e3a\u00a0time<\/code>\u00a0\u53ea\u662f\u4e00\u4e2a\u6d4b\u91cf\u4e00\u4e2a\u8fdb\u7a0b\u8fd0\u884c\u4e86\u591a\u5c11\u65f6\u95f4\u7684\u8ba1\u65f6\u5668\u3002\u4e3a\u5f97\u5230\u65f6\u95f4\uff0c\u4f60\u9700\u8981\u8fd0\u884c\u7684\u662f\u00a0date<\/code>\u00a0\u547d\u4ee4\uff0c\u4f60\u60f3\u67e5\u770b\u66f4\u591a\u7684\u65e5\u671f\uff0c\u4f60\u53ef\u4ee5\u8fd0\u884c\u00a0cal<\/code>\u00a0\u547d\u4ee4\u3002\u6587\u4ef6\u4e0a\u7684\u65f6\u95f4\u6233\u4e5f\u662f\u4e00\u4e2a\u5bb9\u6613\u6df7\u6dc6\u7684\u5730\u65b9\uff0c\u56e0\u4e3a\u6839\u636e\u4f60\u7684\u53d1\u884c\u7248\u9ed8\u8ba4\u60c5\u51b5\u4e0d\u540c\uff0c\u5b83\u4e00\u822c\u6709\u4e24\u79cd\u4e0d\u540c\u7684\u663e\u793a\u65b9\u6cd5\u3002\u4e0b\u9762\u662f\u6765\u81ea Ubuntu 16.04 LTS \u7684\u793a\u4f8b\uff1a<\/p>\n

    \n
  1. $ <\/span>ls<\/span> -<\/span>l<\/span><\/code><\/li>\n
  2. drwxrwxr<\/span>-<\/span>x <\/span>5<\/span> carla carla <\/span>4096<\/span> Mar<\/span> 27<\/span> 2017<\/span> stuff<\/span><\/code><\/li>\n
  3. drwxrwxr<\/span>-<\/span>x <\/span>2<\/span> carla carla <\/span>4096<\/span> Dec<\/span> 8<\/span> 11<\/span>:<\/span>32<\/span> things<\/span><\/code><\/li>\n
  4. -<\/span>rw<\/span>-<\/span>rw<\/span>-<\/span>r<\/span>--<\/span> 1<\/span> carla carla <\/span>626052<\/span> Nov<\/span> 21<\/span> 12<\/span>:<\/span>07<\/span> fatpdf<\/span>.<\/span>pdf<\/span><\/code><\/li>\n
  5. -<\/span>rw<\/span>-<\/span>rw<\/span>-<\/span>r<\/span>--<\/span> 1<\/span> carla carla <\/span>2781<\/span> Apr<\/span> 18<\/span> 2017<\/span> oddlots<\/span>.<\/span>txt<\/span><\/code><\/li>\n<\/ol>\n

    \u6709\u4e9b\u663e\u793a\u5e74\uff0c\u6709\u4e9b\u663e\u793a\u65f6\u95f4\uff0c\u8fd9\u6837\u7684\u65b9\u5f0f\u8ba9\u4f60\u7684\u6587\u4ef6\u66f4\u6df7\u4e71\u3002GNU \u9ed8\u8ba4\u7684\u60c5\u51b5\u662f\uff0c\u5982\u679c\u4f60\u7684\u6587\u4ef6\u5728\u516d\u4e2a\u6708\u4ee5\u5185\uff0c\u5219\u663e\u793a\u65f6\u95f4\u800c\u4e0d\u662f\u5e74\u3002\u6211\u60f3\u8fd9\u6837\u505a\u53ef\u80fd\u662f\u6709\u539f\u56e0\u7684\u3002\u5982\u679c\u4f60\u7684 Linux \u662f\u8fd9\u6837\u7684\uff0c\u5c1d\u8bd5\u7528\u00a0ls -l --time-style=long-iso<\/code>\u00a0\u547d\u4ee4\uff0c\u8ba9\u65f6\u95f4\u6233\u7528\u540c\u4e00\u79cd\u65b9\u5f0f\u53bb\u663e\u793a\uff0c\u6309\u5b57\u6bcd\u987a\u5e8f\u6392\u5e8f\u3002\u8bf7\u67e5\u9605\u00a0\u5982\u4f55\u66f4\u6539 Linux \u7684\u65e5\u671f\u548c\u65f6\u95f4\uff1a\u7b80\u5355\u7684\u547d\u4ee4\u00a0\u53bb\u5b66\u4e60 Linux \u4e0a\u7ba1\u7406\u65f6\u95f4\u7684\u5404\u79cd\u65b9\u6cd5\u3002<\/p>\n

    \u68c0\u67e5\u5f53\u524d\u8bbe\u7f6e<\/h3>\n

    NTP \u2014\u2014 \u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff0c\u5b83\u662f\u4fdd\u6301\u8ba1\u7b97\u673a\u6b63\u786e\u65f6\u95f4\u7684\u8001\u5f0f\u65b9\u6cd5\u3002ntpd<\/code>\u00a0\u662f NTP \u5b88\u62a4\u7a0b\u5e8f\uff0c\u5b83\u901a\u8fc7\u5468\u671f\u6027\u5730\u67e5\u8be2\u516c\u5171\u65f6\u95f4\u670d\u52a1\u5668\u6765\u6309\u9700\u8c03\u6574\u4f60\u7684\u8ba1\u7b97\u673a\u65f6\u95f4\u3002\u5b83\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u3001\u8f7b\u91cf\u7ea7\u7684\u534f\u8bae\uff0c\u4f7f\u7528\u5b83\u7684\u57fa\u672c\u529f\u80fd\u65f6\u8bbe\u7f6e\u975e\u5e38\u5bb9\u6613\u3002systemd \u901a\u8fc7\u4f7f\u7528\u00a0systemd-timesyncd.service<\/code>\u00a0\u5df2\u7ecf\u8d8a\u4fce\u4ee3\u5e96\u5730 \u201c\u5e72\u4e86 NTP \u7684\u6d3b\u201d\uff0c\u5b83\u53ef\u4ee5\u7528\u4f5c\u00a0ntpd<\/code>\u00a0\u7684\u5ba2\u6237\u7aef\u3002<\/p>\n

    \u5728\u6211\u4eec\u5f00\u59cb\u4e0e NTP \u201c\u6253\u4ea4\u9053\u201d \u4e4b\u524d\uff0c\u5148\u82b1\u4e00\u4e9b\u65f6\u95f4\u6765\u4e86\u68c0\u67e5\u4e00\u4e0b\u5f53\u524d\u7684\u65f6\u95f4\u8bbe\u7f6e\u662f\u5426\u6b63\u786e\u3002<\/p>\n

    \u4f60\u7684\u7cfb\u7edf\u4e0a\uff08\u81f3\u5c11\uff09\u6709\u4e24\u4e2a\u65f6\u949f\uff1a\u7cfb\u7edf\u65f6\u95f4 \u2014\u2014 \u5b83\u7531 Linux \u5185\u6838\u7ba1\u7406\uff0c\u7b2c\u4e8c\u4e2a\u662f\u4f60\u7684\u4e3b\u677f\u4e0a\u7684\u786c\u4ef6\u65f6\u949f\uff0c\u5b83\u4e5f\u79f0\u4e3a\u5b9e\u65f6\u65f6\u949f\uff08RTC\uff09\u3002\u5f53\u4f60\u8fdb\u5165\u7cfb\u7edf\u7684 BIOS \u65f6\uff0c\u4f60\u53ef\u4ee5\u770b\u5230\u4f60\u7684\u786c\u4ef6\u65f6\u949f\u7684\u65f6\u95f4\uff0c\u4f60\u4e5f\u53ef\u4ee5\u53bb\u6539\u53d8\u5b83\u7684\u8bbe\u7f6e\u3002\u5f53\u4f60\u5b89\u88c5\u4e00\u4e2a\u65b0\u7684 Linux \u65f6\uff0c\u5728\u4e00\u4e9b\u56fe\u5f62\u5316\u7684\u65f6\u95f4\u7ba1\u7406\u5668\u4e2d\uff0c\u4f60\u4f1a\u88ab\u8be2\u95ee\u662f\u5426\u8bbe\u7f6e\u4f60\u7684 RTC \u4e3a UTC\uff08\u4e16\u754c\u6807\u51c6\u65f6\u95f4Coordinated Universal Time<\/rt><\/ruby>\uff09\u65f6\u533a\uff0c\u56e0\u4e3a\u6240\u6709\u7684\u65f6\u533a\u548c\u590f\u4ee4\u65f6\u90fd\u662f\u57fa\u4e8e UTC \u7684\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u00a0hwclock<\/code>\u00a0\u547d\u4ee4\u53bb\u68c0\u67e5\uff1a<\/p>\n

      \n
    1. $ <\/span>sudo<\/span> hwclock<\/span> --<\/span>debug<\/span><\/code><\/li>\n
    2. hwclock<\/span> from<\/span> util<\/span>-<\/span>linux <\/span>2.27<\/span>.<\/span>1<\/span><\/code><\/li>\n
    3. Using<\/span> the <\/span>\/<\/span>dev <\/span>interface<\/span> to the clock<\/span>.<\/span><\/code><\/li>\n
    4. Hardware<\/span> clock <\/span>is<\/span> on UTC <\/span>time<\/span><\/code><\/li>\n
    5. Assuming<\/span> hardware clock <\/span>is<\/span> kept <\/span>in<\/span> UTC <\/span>time<\/span>.<\/span><\/code><\/li>\n
    6. Waiting<\/span> for<\/span> clock tick<\/span>...<\/span><\/code><\/li>\n
    7. ...<\/span>got clock tick<\/span><\/code><\/li>\n
    8. Time<\/span> read <\/span>from<\/span> Hardware<\/span> Clock<\/span>:<\/span> 2018<\/span>\/<\/span>01<\/span>\/<\/span>22<\/span> 22<\/span>:<\/span>14<\/span>:<\/span>31<\/span><\/code><\/li>\n
    9. Hw<\/span> clock <\/span>time<\/span> :<\/span> 2018<\/span>\/<\/span>01<\/span>\/<\/span>22<\/span> 22<\/span>:<\/span>14<\/span>:<\/span>31<\/span> =<\/span> 1516659271<\/span> seconds since <\/span>1969<\/span><\/code><\/li>\n
    10. Time<\/span> since <\/span>last<\/span> adjustment <\/span>is<\/span> 1516659271<\/span> seconds<\/span><\/code><\/li>\n
    11. Calculated<\/span> Hardware<\/span> Clock<\/span> drift <\/span>is<\/span> 0.000000<\/span> seconds<\/span><\/code><\/li>\n
    12. Mon<\/span> 22<\/span> Jan<\/span> 2018<\/span> 02<\/span>:<\/span>14<\/span>:<\/span>30<\/span> PM PST <\/span>.<\/span>202760<\/span> seconds<\/span><\/code><\/li>\n<\/ol>\n

      Hardware clock is on UTC time<\/code>\u00a0\u8868\u660e\u4e86\u4f60\u7684\u8ba1\u7b97\u673a\u7684 RTC \u662f\u4f7f\u7528 UTC \u65f6\u95f4\u7684\uff0c\u867d\u7136\u5b83\u628a\u8be5\u65f6\u95f4\u8f6c\u6362\u4e3a\u4f60\u7684\u672c\u5730\u65f6\u95f4\u3002\u5982\u679c\u5b83\u88ab\u8bbe\u7f6e\u4e3a\u672c\u5730\u65f6\u95f4\uff0c\u5b83\u5c06\u663e\u793a\u00a0Hardware clock is on local time<\/code>\u3002<\/p>\n

      \u4f60\u5e94\u8be5\u6709\u4e00\u4e2a\u00a0\/etc\/adjtime<\/code>\u00a0\u6587\u4ef6\u3002\u5982\u679c\u6ca1\u6709\u7684\u8bdd\uff0c\u4f7f\u7528\u5982\u4e0b\u547d\u4ee4\u540c\u6b65\u4f60\u7684 RTC \u4e3a\u7cfb\u7edf\u65f6\u95f4\uff0c<\/p>\n

        \n
      1. $ <\/span>sudo<\/span> hwclock<\/span> -<\/span>w<\/span><\/code><\/li>\n<\/ol>\n

        \u8fd9\u4e2a\u547d\u4ee4\u5c06\u751f\u6210\u8be5\u6587\u4ef6\uff0c\u5185\u5bb9\u770b\u8d77\u6765\u7c7b\u4f3c\u5982\u4e0b\uff1a<\/p>\n

          \n
        1. $ <\/span>cat<\/span> \/<\/span>etc<\/span>\/<\/span>adjtime<\/span><\/code><\/li>\n
        2. 0.000000<\/span> 1516661953<\/span> 0.000000<\/span><\/code><\/li>\n
        3. 1516661953<\/span><\/code><\/li>\n
        4. UTC<\/span><\/code><\/li>\n<\/ol>\n

          \u65b0\u53d1\u660e\u7684 systemd \u65b9\u5f0f\u662f\u53bb\u8fd0\u884c\u00a0timedatectl<\/code>\u00a0\u547d\u4ee4\uff0c\u8fd0\u884c\u5b83\u4e0d\u9700\u8981 root \u6743\u9650\uff1a<\/p>\n

            \n
          1. $ <\/span>timedatectl<\/span><\/code><\/li>\n
          2. Local<\/span> time<\/span>:<\/span> Mon<\/span> 2018<\/span>-<\/span>01<\/span>-<\/span>22<\/span> 14<\/span>:<\/span>17<\/span>:<\/span>51<\/span> PST<\/span><\/code><\/li>\n
          3. Universal<\/span> time<\/span>:<\/span> Mon<\/span> 2018<\/span>-<\/span>01<\/span>-<\/span>22<\/span> 22<\/span>:<\/span>17<\/span>:<\/span>51<\/span> UTC<\/span><\/code><\/li>\n
          4. RTC <\/span>time<\/span>:<\/span> Mon<\/span> 2018<\/span>-<\/span>01<\/span>-<\/span>22<\/span> 22<\/span>:<\/span>17<\/span>:<\/span>51<\/span><\/code><\/li>\n
          5. Time<\/span> zone<\/span>:<\/span> America<\/span>\/<\/span>Los_Angeles<\/span> (<\/span>PST<\/span>,<\/span> -<\/span>0800<\/span>)<\/span><\/code><\/li>\n
          6. Network<\/span> time<\/span> on<\/span>:<\/span> yes<\/span><\/code><\/li>\n
          7. NTP synchronized<\/span>:<\/span> yes<\/span><\/code><\/li>\n
          8. RTC <\/span>in<\/span> local<\/span> TZ<\/span>:<\/span> no<\/span><\/code><\/li>\n<\/ol>\n

            RTC in local TZ: no<\/code>\u00a0\u8868\u660e\u5b83\u4f7f\u7528 UTC \u65f6\u95f4\u3002\u90a3\u4e48\u600e\u4e48\u6539\u6210\u4f7f\u7528\u672c\u5730\u65f6\u95f4\uff1f\u8fd9\u91cc\u6709\u8bb8\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u505a\u5230\u3002\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u4e00\u4e2a\u56fe\u5f62\u914d\u7f6e\u5de5\u5177\uff0c\u6bd4\u5982\u50cf openSUSE \u4e2d\u7684 YaST\u3002\u4f60\u4e5f\u53ef\u4f7f\u7528\u00a0timedatectl<\/code>\uff1a<\/p>\n

              \n
            1. $ <\/span>timedatectl<\/span> set<\/span>-<\/span>local<\/span>-<\/span>rtc <\/span>0<\/span><\/code><\/li>\n<\/ol>\n

              \u6216\u8005\u7f16\u8f91\u00a0\/etc\/adjtime<\/code>\uff0c\u5c06\u00a0UTC<\/code>\u00a0\u66ff\u6362\u4e3a\u00a0LOCAL<\/code>\u3002<\/p>\n

              systemd-timesyncd \u5ba2\u6237\u7aef<\/h3>\n

              \u73b0\u5728\uff0c\u6211\u5df2\u7ecf\u7d2f\u4e86\uff0c\u4f46\u662f\u6211\u4eec\u521a\u5230\u975e\u5e38\u7cbe\u5f69\u7684\u90e8\u5206\u3002\u8c01\u80fd\u60f3\u5230\u8ba1\u65f6\u5982\u6b64\u590d\u6742\uff1f\u6211\u4eec\u751a\u81f3\u8fd8\u6ca1\u6709\u4e86\u89e3\u5230\u5b83\u7684\u76ae\u6bdb\uff1b\u9605\u8bfb\u00a0man 8 hwclock<\/code>\u00a0\u53bb\u4e86\u89e3\u4f60\u7684\u8ba1\u7b97\u673a\u5982\u4f55\u4fdd\u6301\u65f6\u95f4\u7684\u8be6\u7ec6\u5185\u5bb9\u3002<\/p>\n

              systemd \u63d0\u4f9b\u4e86\u00a0systemd-timesyncd.service<\/code>\u00a0\u5ba2\u6237\u7aef\uff0c\u5b83\u53ef\u4ee5\u67e5\u8be2\u8fdc\u7a0b\u65f6\u95f4\u670d\u52a1\u5668\u5e76\u8c03\u6574\u4f60\u7684\u672c\u5730\u7cfb\u7edf\u65f6\u95f4\u3002\u5728\u00a0\/etc\/systemd\/timesyncd.conf<\/code>\u00a0\u4e2d\u914d\u7f6e\u4f60\u7684\uff08\u65f6\u95f4\uff09\u670d\u52a1\u5668\u3002\u5927\u591a\u6570 Linux \u53d1\u884c\u7248\u90fd\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9ed8\u8ba4\u914d\u7f6e\uff0c\u5b83\u6307\u5411\u4ed6\u4eec\u7ef4\u62a4\u7684\u65f6\u95f4\u670d\u52a1\u5668\u4e0a\uff0c\u6bd4\u5982\uff0c\u4ee5\u4e0b\u662f Fedora \u7684\uff1a<\/p>\n

                \n
              1. [<\/span>Time<\/span>]<\/span><\/code><\/li>\n
              2. #<\/span>NTP<\/span>=<\/span><\/code><\/li>\n
              3. #<\/span>FallbackNTP<\/span>=<\/span>0.fedora<\/span>.<\/span>pool<\/span>.<\/span>ntp<\/span>.<\/span>org <\/span>1.fedora<\/span>.<\/span>pool<\/span>.<\/span>ntp<\/span>.<\/span>org<\/span><\/code><\/li>\n<\/ol>\n

                \u4f60\u53ef\u4ee5\u8f93\u5165\u4f60\u5e0c\u671b\u4f7f\u7528\u7684\u5176\u5b83\u65f6\u95f4\u670d\u52a1\u5668\uff0c\u6bd4\u5982\u4f60\u81ea\u5df1\u7684\u672c\u5730 NTP \u670d\u52a1\u5668\uff0c\u5728\u00a0NTP=<\/code>\u00a0\u884c\u4e0a\u8f93\u5165\u4e00\u4e2a\u4ee5\u7a7a\u683c\u5206\u9694\u7684\u670d\u52a1\u5668\u5217\u8868\u3002\uff08\u522b\u5fd8\u4e86\u53d6\u6d88\u8fd9\u4e00\u884c\u7684\u6ce8\u91ca\uff09NTP=<\/code>\u00a0\u884c\u4e0a\u7684\u4efb\u4f55\u5185\u5bb9\u90fd\u5c06\u8986\u76d6\u6389\u00a0FallbackNTP<\/code>\u00a0\u884c\u4e0a\u7684\u914d\u7f6e\u9879\u3002<\/p>\n

                \u5982\u679c\u4f60\u4e0d\u60f3\u4f7f\u7528 systemd \u5462\uff1f\u90a3\u4e48\uff0c\u4f60\u5c06\u9700\u8981 NTP \u5c31\u884c\u3002<\/p>\n

                \u914d\u7f6e NTP \u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef<\/h3>\n

                \u914d\u7f6e\u4f60\u81ea\u5df1\u7684\u5c40\u57df\u7f51 NTP \u670d\u52a1\u5668\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u5b9e\u8df5\uff0c\u8fd9\u6837\u4f60\u7684\u7f51\u5185\u8ba1\u7b97\u673a\u5c31\u4e0d\u9700\u8981\u4e0d\u505c\u67e5\u8be2\u516c\u5171 NTP \u670d\u52a1\u5668\u3002\u5728\u5927\u591a\u6570 Linux \u4e0a\u7684 NTP \u90fd\u6765\u81ea\u00a0ntp<\/code>\u00a0\u5305\uff0c\u5b83\u4eec\u5927\u591a\u90fd\u63d0\u4f9b\u00a0\/etc\/ntp.conf<\/code>\u00a0\u6587\u4ef6\u53bb\u914d\u7f6e\u65f6\u95f4\u670d\u52a1\u5668\u3002\u67e5\u9605\u00a0NTP \u65f6\u95f4\u670d\u52a1\u5668\u6c60<\/a>\u00a0\u53bb\u627e\u5230\u4f60\u6240\u5728\u7684\u533a\u57df\u7684\u5408\u9002\u7684 NTP \u670d\u52a1\u5668\u6c60\u3002\u7136\u540e\u5728\u4f60\u7684\u00a0\/etc\/ntp.conf<\/code>\u00a0\u4e2d\u8f93\u5165 4 – 5 \u4e2a\u670d\u52a1\u5668\uff0c\u6bcf\u4e2a\u670d\u52a1\u5668\u7528\u5355\u72ec\u7684\u4e00\u884c\uff1a<\/p>\n

                  \n
                1. driftfile <\/span>\/<\/span>var<\/span>\/<\/span>ntp<\/span>.<\/span>drift<\/span><\/code><\/li>\n
                2. logfile <\/span>\/<\/span>var<\/span>\/<\/span>log<\/span>\/<\/span>ntp<\/span>.<\/span>log<\/span><\/code><\/li>\n
                3. server <\/span>0.europe<\/span>.<\/span>pool<\/span>.<\/span>ntp<\/span>.<\/span>org<\/span><\/code><\/li>\n
                4. server <\/span>1.europe<\/span>.<\/span>pool<\/span>.<\/span>ntp<\/span>.<\/span>org<\/span><\/code><\/li>\n
                5. server <\/span>2.europe<\/span>.<\/span>pool<\/span>.<\/span>ntp<\/span>.<\/span>org<\/span><\/code><\/li>\n
                6. server <\/span>3.europe<\/span>.<\/span>pool<\/span>.<\/span>ntp<\/span>.<\/span>org<\/span><\/code><\/li>\n<\/ol>\n

                  driftfile<\/code>\u00a0\u544a\u8bc9\u00a0ntpd<\/code>\u00a0\u5b83\u9700\u8981\u4fdd\u5b58\u7528\u4e8e\u542f\u52a8\u65f6\u4f7f\u7528\u65f6\u95f4\u670d\u52a1\u5668\u5feb\u901f\u540c\u6b65\u4f60\u7684\u7cfb\u7edf\u65f6\u949f\u7684\u4fe1\u606f\u3002\u800c\u65e5\u5fd7\u4e5f\u5c06\u4fdd\u5b58\u5728\u4ed6\u4eec\u81ea\u5df1\u6307\u5b9a\u7684\u76ee\u5f55\u4e2d\uff0c\u800c\u4e0d\u662f\u8f6c\u50a8\u5230 syslog \u4e2d\u3002\u5982\u679c\u4f60\u7684 Linux \u53d1\u884c\u7248\u9ed8\u8ba4\u63d0\u4f9b\u4e86\u8fd9\u4e9b\u6587\u4ef6\uff0c\u8bf7\u4f7f\u7528\u5b83\u4eec\u3002<\/p>\n

                  \u73b0\u5728\u53bb\u542f\u52a8\u5b88\u62a4\u7a0b\u5e8f\uff1b\u5728\u5927\u591a\u6570\u4e3b\u6d41\u7684 Linux \u4e2d\u5b83\u7684\u547d\u4ee4\u662f\u00a0sudo systemctl start ntpd<\/code>\u3002\u8ba9\u5b83\u8fd0\u884c\u51e0\u5206\u949f\u4e4b\u540e\uff0c\u6211\u4eec\u518d\u6b21\u53bb\u68c0\u67e5\u5b83\u7684\u72b6\u6001\uff1a<\/p>\n

                    \n
                  1. $ ntpq <\/span>-<\/span>p<\/span><\/code><\/li>\n
                  2. remote refid st t <\/span>when<\/span> poll reach delay offset jitter<\/span><\/code><\/li>\n
                  3. ==============================================================<\/span><\/code><\/li>\n
                  4. +<\/span>dev<\/span>.<\/span>smatwebdesi <\/span>192.168<\/span>.<\/span>194.89<\/span> 3<\/span> u <\/span>25<\/span> 64<\/span> 37<\/span> 92.456<\/span> -<\/span>6.395<\/span> 18.530<\/span><\/code><\/li>\n
                  5. *<\/span>chl<\/span>.<\/span>la <\/span>127.67<\/span>.<\/span>113.92<\/span> 2<\/span> u <\/span>23<\/span> 64<\/span> 37<\/span> 75.175<\/span> 8.820<\/span> 8.230<\/span><\/code><\/li>\n
                  6. +<\/span>four0<\/span>.<\/span>fairy<\/span>.<\/span>mat <\/span>35.73<\/span>.<\/span>197.144<\/span> 2<\/span> u <\/span>22<\/span> 64<\/span> 37<\/span> 116.272<\/span> -<\/span>10.033<\/span> 40.151<\/span><\/code><\/li>\n
                  7. -<\/span>195.21<\/span>.<\/span>152.161<\/span> 195.66<\/span>.<\/span>241.2<\/span> 2<\/span> u <\/span>27<\/span> 64<\/span> 37<\/span> 107.559<\/span> 1.822<\/span> 27.346<\/span><\/code><\/li>\n<\/ol>\n

                    \u6211\u4e0d\u77e5\u9053\u8fd9\u4e9b\u5185\u5bb9\u662f\u4ec0\u4e48\u610f\u601d\uff0c\u4f46\u91cd\u8981\u7684\u662f\uff0c\u4f60\u7684\u5b88\u62a4\u7a0b\u5e8f\u5df2\u7ecf\u4e0e\u65f6\u95f4\u670d\u52a1\u5668\u5f00\u59cb\u5bf9\u8bdd\u4e86\uff0c\u800c\u8fd9\u6b63\u662f\u6211\u4eec\u6240\u9700\u8981\u7684\u3002\u4f60\u53ef\u4ee5\u53bb\u8fd0\u884c\u00a0sudo systemctl enable ntpd<\/code>\u00a0\u547d\u4ee4\uff0c\u6c38\u4e45\u542f\u7528\u5b83\u3002\u5982\u679c\u4f60\u7684 Linux \u6ca1\u6709\u4f7f\u7528 systemd\uff0c\u90a3\u4e48\uff0c\u7ed9\u4f60\u7559\u4e0b\u7684\u5bb6\u5ead\u4f5c\u4e1a\u5c31\u662f\u627e\u51fa\u5982\u4f55\u53bb\u8fd0\u884c\u00a0ntpd<\/code>\u3002<\/p>\n

                    \u73b0\u5728\uff0c\u4f60\u53ef\u4ee5\u5728\u4f60\u7684\u5c40\u57df\u7f51\u4e2d\u7684\u5176\u5b83\u8ba1\u7b97\u673a\u4e0a\u8bbe\u7f6e\u00a0systemd-timesyncd<\/code>\uff0c\u8fd9\u6837\u5b83\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528\u4f60\u7684\u672c\u5730 NTP \u670d\u52a1\u5668\u4e86\uff0c\u6216\u8005\uff0c\u5728\u5b83\u4eec\u4e0a\u9762\u5b89\u88c5 NTP\uff0c\u7136\u540e\u5728\u5b83\u4eec\u7684\u00a0\/etc\/ntp.conf<\/code>\u00a0\u4e0a\u8f93\u5165\u4f60\u7684\u672c\u5730 NTP \u670d\u52a1\u5668\u3002<\/p>\n

                    NTP \u670d\u52a1\u5668\u4f1a\u53d7\u5230\u653b\u51fb\uff0c\u800c\u4e14\u9700\u6c42\u5728\u4e0d\u65ad\u589e\u52a0\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c\u4f60\u81ea\u5df1\u7684\u516c\u5171 NTP \u670d\u52a1\u5668\u6765\u63d0\u4f9b\u5e2e\u52a9\u3002\u4e0b\u5468\u6211\u4eec\u5c06\u5b66\u4e60\u5982\u4f55\u8fd0\u884c\u4f60\u81ea\u5df1\u7684\u516c\u5171\u670d\u52a1\u5668\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                    \u5982\u4f55\u4fdd\u6301\u6b63\u786e\u7684\u65f6\u95f4\uff0c\u5982\u4f55\u4f7f\u7528 NTP \u548c systemd \u8ba9\u4f60\u7684\u8ba1\u7b97\u673a\u5728\u4e0d\u6ee5\u7528\u65f6\u95f4\u670d\u52a1\u5668\u7684\u524d\u63d0\u4e0b\u4fdd\u6301\u540c\u6b65\u3002 \u5b83 … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3308","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/3308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=3308"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/3308\/revisions"}],"predecessor-version":[{"id":3309,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/3308\/revisions\/3309"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=3308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=3308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=3308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}