{"id":11149,"date":"2021-01-30T14:00:53","date_gmt":"2021-01-30T05:00:53","guid":{"rendered":"http:\/\/mini.jellypo.pe.kr\/wp\/?p=11149"},"modified":"2021-02-02T21:11:42","modified_gmt":"2021-02-02T12:11:42","slug":"ntp-%ec%84%a4%ec%a0%95-%eb%b0%8f-%ec%9a%b4%ec%98%81-%ec%a3%bc%ec%9d%98%ec%a0%90","status":"publish","type":"post","link":"https:\/\/mini.jellypo.pe.kr\/wp\/?p=11149","title":{"rendered":"NTP \uc124\uc815 \ubc0f \uc6b4\uc601 \uc8fc\uc758\uc810"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\ub9ac\ub205\uc2a4 ntpd(\ud639\uc740 chrony)\uc640 timesyncd \uac19\uc774 \uc4f0\uc9c0 \ub9d0 \uac83<\/h2>\n\n\n\n<p>\uacb0\ub860\ubd80\ud130 \ub9d0\ud558\uba74, \uc2dc\uac04 \ub3d9\uae30\ud654 \ub370\ubaac\uc740 \uc11c\ubc84\uc5d0 \ud55c \uac1c\ub9cc \uc2e4\ud589 \uc911\uc774\uc5b4\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<p>\ucd94\uac00\ub0b4\uc6a9: <a href=\"https:\/\/mini.jellypo.pe.kr\/wp\/?p=11212\">\uc11c\ubc84 \uc2dc\uac04 \ub3d9\uae30\ud654: \uc81c\ubc1c 21\uc138\uae30\uc5d4 rdate \uc4f0\uc9c0 \ub9d0\uc790<\/a><\/p>\n\n\n\n<p>systemd\ub97c \uc0ac\uc6a9\ud558\ub294 \ub9ac\ub205\uc2a4 \uc11c\ubc84\uc758 \uc2dc\uac04 \ub3d9\uae30\ud654\ub97c \uc124\uba85\ud558\ub294 \uc778\ud130\ub137\uc758 \uc5ec\ub7ec \uae00 \uc911\uc5d0 ntpd(\ud639\uc740 chrony) \uc124\uce58\uc640 \ud568\uaed8 timesyncd \ub97c \uac19\uc774 \ud65c\uc131\ud654\ud558\ub77c\ub294 \ub0b4\uc6a9\uc774 \uc5ec\ub7ff \uc788\ub2e4. <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># timedatectl\nLocal time: \uae08 2020-06-19 00:34:37 KST\nUniversal time: \ubaa9 2020-06-18 15:34:37 UTC\nRTC time: \ubaa9 2020-06-18 15:34:37\nTime zone: Asia\/Seoul (KST, +0900)\nSystem clock synchronized: yes\nNTP service: inactive\nRTC in local TZ: no<\/code><\/pre>\n\n\n\n<p>\uc704 \uba85\ub839 \uc2e4\ud589 \uacb0\uacfc\uc5d0\uc11c NTP Service \ud56d\ubaa9\uc774 active \ub85c \ub098\uc640\uc57c \ud55c\ub2e4\ub294\uac74\ub370, timedatectl \uc5d0\uc11c \ub9d0\ud558\ub294 NTP Service \ub294 &#8216;systemd-timesyncd&#8217; \uc774\ub2e4. timedatectl set-ntp on \ud55c \ub4a4\uc5d0 \ud655\uc778\ud574\ubcf4\ub77c.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># timedatectl set-ntp on\n# timedatectl \nLocal time: \uae08 2020-06-19 00:39:24 KST\nUniversal time: \ubaa9 2020-06-18 15:39:24 UTC\nRTC time: \ubaa9 2020-06-18 15:39:24\nTime zone: Asia\/Seoul (KST, +0900)\nSystem clock synchronized: yes\nNTP service: active\nRTC in local TZ: no\n# systemctl status systemd-timesyncd\n\u25cf systemd-timesyncd.service - Network Time Synchronization\nLoaded: loaded (\/usr\/lib\/systemd\/system\/systemd-timesyncd.service; enabled; vendor p&gt;\nActive: active (running) since Fri 2020-06-19 00:39:20 KST; 35s ago\nDocs: man:systemd-timesyncd.service(8)\nMain PID: 588613 (systemd-timesyn)\nStatus: \"Initial synchronization to time server 211.233.40.78:123 (0.arch.pool.ntp.o&gt;\nTasks: 2 (limit: 9414)\nMemory: 1.8M\nCGroup: \/system.slice\/systemd-timesyncd.service\n\u2514\u2500588613 \/usr\/lib\/systemd\/systemd-timesyncd\n6\uc6d4 19 00:39:20 Arch systemd&#91;1]: Starting Network Time Synchronization\u2026\n6\uc6d4 19 00:39:20 Arch systemd&#91;1]: Started Network Time Synchronization.\n6\uc6d4 19 00:39:21 Arch systemd-timesyncd&#91;588613]: Initial synchronization to time server<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p>\ud55c \uc2dc\uc2a4\ud15c\uc5d0 \ub450 \uac1c \uc774\uc0c1\uc758 \uc2dc\uac04 \ub3d9\uae30\ud654 \ub370\ubaac\uc774 \uc2e4\ud589\ub418\uba74 \uc11c\ubc84 \uc2dc\uac04\uc774 \ub110\ub6f0\uae30 \ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p>\ucc38\uace0\ub85c <a rel=\"noreferrer noopener\" href=\"https:\/\/github.com\/systemd\/systemd\/blob\/v213\/NEWS#L5\" target=\"_blank\">systemd-timesyncd<\/a> \ub294 SNTP \uad6c\ud604\uccb4\ub85c NTP \ud074\ub77c\uc774\uc5b8\ud2b8 \uc5ed\ud560\ub9cc \ud568. 2020 \ub144 \ud604\uc7ac NTP \uad6c\ud604\uccb4 \uc911 chrony \uc4f0\ub294\uac8c \uac00\uc7a5 \ub0ab\ub2e4.<\/p>\n\n\n\n<blockquote class=\"twitter-tweet\"><p dir=\"ltr\" lang=\"ko\">\uc81c\uac00 \uc9c0\uae08 \ubc16\uc774\ub77c \uc790\uc138\ud55c \uc790\ub8cc\ub97c \ub358\uc838\ub4dc\ub9ac\uae30\uac00 \uc880 \uace4\ub780\ud55c\ub370<a href=\"https:\/\/t.co\/b7YxaOL3Nr\">https:\/\/t.co\/b7YxaOL3Nr<\/a><br>\ub9d0\uc500\ud558\uc2e0 \ub3d9\uc791\uc744 slew\ub77c\uace0 \ud558\ub294\ub370 ntpd\uac00 \uadf8\uac70 \uc9c0\uc6d0 \uc548\ud558\ub294\uac74 \uc544\ub2cc\ub370 \ubb38\uc81c\uac00 \uc880 \ub9ce\uc544\uc720<br><br>\uadf8\ub9ac\uace0 systemd-timesyncd\ub294 NTP\uac00 \uc544\ub2c8\ub77c SNTP \ud074\ub77c\uc774\uc5b8\ud2b8\ub77c\uc11c slewing, leap smearing \uc774\ub7f0\uac70 \ud558\ub098\ub3c4\uc548\ub429\ub2c8\ub2e4 <a href=\"https:\/\/t.co\/ZCC2RN3vMg\">pic.twitter.com\/ZCC2RN3vMg<\/a><\/p>\u2014 \uae40\uc9c0\ud604 (@simnalamburt) <a href=\"https:\/\/twitter.com\/simnalamburt\/status\/1090230906856529922?ref_src=twsrc%5Etfw\">January 29, 2019<\/a><\/blockquote> <script async=\"\" src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">NTP \ub294 \uc2dc\uac04 \ub3d9\uae30\ud654 \uc790\uc8fc \ud55c\ub2e4\uace0 \uc815\ubc00\ub3c4\uac00 \ub192\uc544\uc9c0\uc9c0 \uc54a\ub294\ub2e4<\/h2>\n\n\n\n<p>NTP \ub97c 1 \ubd84\ub9c8\ub2e4 \uc2e4\ud589\ud55c\ub2e4\uace0 \uc624\ucc28\uac00 \uc791\uc544\uc9c0\uc9c0 \uc54a\ub294\ub2e4. \uc624\ud788\ub824 \ubc18\ubcf5 \uc2e4\ud589 \uc2dc \ub4a4\uc5d0 \uc2e4\ud589\ub418\ub294 \ub3d9\uae30\ud654 \uba85\ub839\uc740 \ubb34\uc2dc\ub41c\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-embed\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/serverfault.com\/questions\/378133\/how-to-configure-ntpd-to-sync-time-more-frequently\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\ub9ac\ub205\uc2a4 ntpd(\ud639\uc740 chrony)\uc640 timesyncd \uac19\uc774 \uc4f0\uc9c0 \ub9d0 \uac83 \uacb0\ub860\ubd80\ud130 \ub9d0\ud558\uba74, \uc2dc\uac04 \ub3d9\uae30\ud654 \ub370\ubaac\uc740 \uc11c\ubc84\uc5d0 \ud55c \uac1c\ub9cc \uc2e4\ud589 \uc911\uc774\uc5b4\uc57c \ud55c\ub2e4. \ucd94\uac00\ub0b4\uc6a9: \uc11c\ubc84 \uc2dc\uac04 \ub3d9\uae30\ud654: \uc81c\ubc1c 21\uc138\uae30\uc5d4 rdate \uc4f0\uc9c0 \ub9d0\uc790 systemd\ub97c \uc0ac\uc6a9\ud558\ub294 \ub9ac\ub205\uc2a4 \uc11c\ubc84\uc758 \uc2dc\uac04 \ub3d9\uae30\ud654\ub97c \uc124\uba85\ud558\ub294 \uc778\ud130\ub137\uc758 \uc5ec\ub7ec \uae00 \uc911\uc5d0 ntpd(\ud639\uc740 chrony) \uc124\uce58\uc640 \ud568\uaed8 timesyncd \ub97c \uac19\uc774 \ud65c\uc131\ud654\ud558\ub77c\ub294 \ub0b4\uc6a9\uc774 \uc5ec\ub7ff \uc788\ub2e4. \uc704 \uba85\ub839 \uc2e4\ud589 \uacb0\uacfc\uc5d0\uc11c NTP [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[85],"class_list":["post-11149","post","type-post","status-publish","format-standard","hentry","tag-85"],"_links":{"self":[{"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=\/wp\/v2\/posts\/11149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11149"}],"version-history":[{"count":6,"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=\/wp\/v2\/posts\/11149\/revisions"}],"predecessor-version":[{"id":11240,"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=\/wp\/v2\/posts\/11149\/revisions\/11240"}],"wp:attachment":[{"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mini.jellypo.pe.kr\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}