{"id":187,"date":"2026-04-05T19:33:09","date_gmt":"2026-04-05T10:33:09","guid":{"rendered":"https:\/\/falcon21.space\/kazuya\/work\/?page_id=187"},"modified":"2026-04-05T19:33:09","modified_gmt":"2026-04-05T10:33:09","slug":"ntp%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e6%a7%8b%e7%af%89chrony","status":"publish","type":"page","link":"https:\/\/falcon21.space\/kazuya\/work\/?page_id=187","title":{"rendered":"NTP\u30b5\u30fc\u30d0\u30fc\u69cb\u7bc9(chrony)"},"content":{"rendered":"\n
NTP\u30b5\u30fc\u30d0\u30fc\u69cb\u7bc9(chrony)\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000
NTP\u30b5\u30fc\u30d0\u30fc\u306fOS \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u540c\u6642\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u304a\u308a\u3001
\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u6642\u523b\u8a2d\u5b9a\u78ba\u8a8d\u3054\u3082\u3001\u6b63\u5e38\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u3042\u3048\u3066
\u8a2d\u5b9a\u306e\u5fc5\u8981\u306a\u3057\u3002<\/strong>

NTP\u30b5\u30fc\u30d0\u30fc\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/strong>
[root@falcon21 ~]#\u00a0dnf -y install chrony<\/strong>\u3000
\u30e1\u30bf\u30c7\u30fc\u30bf\u306e\u671f\u9650\u5207\u308c\u306e\u6700\u7d42\u78ba\u8a8d: 4:23:22 \u524d\u306e 2025\u5e7411\u670810\u65e5 07\u664231\u520605\u79d2
\u306b\u5b9f\u65bd\u3057\u307e\u3057\u305f\u3002
\u30d1\u30c3\u30b1\u30fc\u30b8 chrony-4.6.1-1.el10.x86_64 \u306f\u65e2\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\u4f9d\u5b58\u95a2\u4fc2\u304c\u89e3\u6c7a\u3057\u307e\u3057\u305f\u3002
\u884c\u3046\u3079\u304d\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002
\u5b8c\u4e86\u3057\u307e\u3057\u305f!


NTP\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a<\/strong>
ntp\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u7de8\u96c6<\/strong>
[root@falcon21 ~]#\u00a0vi \/etc\/chrony.conf\u3000<\/strong>
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http:\/\/www.pool.ntp.org\/join.html).
\u2193\u3000\u6642\u523b\u540c\u671f\u5148NTP\u30b5\u30fc\u30d0\u30fc\u3092\u5909\u66f4
# \u65e5\u672c\u6a19\u6e96\u6642\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308bNTP\u30b5\u30fc\u30d0\u30fc(stratum 1)
server ntp.nict.jp iburst
# \u4e0a\u8a18\u30b5\u30fc\u30d0\u30fc\u3068\u76f4\u63a5\u540c\u671f\u3057\u3066\u3044\u308bNTP\u30b5\u30fc\u30d0\u30fc(stratum 2)
server ntp.jst.mfeed.ad.jp iburst


# Allow NTP client access from local network.
#allow 192.168.0.0\/16
allow 192.168.10.0\/24\u3000\u2190\u3000\u5185\u90e8\uff08\u4f8b:192.168.1.0\/24\uff09\u304b\u3089\u306e\u6642\u523b\u540c\u671f\u3092\u8a31\u53ef


NTP\u30b5\u30fc\u30d0\u30fc\u8d77\u52d5<\/strong>
NTP\u30b5\u30fc\u30d0\u30fc\u8d77\u52d5<\/strong>
[root@falcon21 ~]#\u00a0systemctl start chronyd<\/strong>\u3000


NTP\u30b5\u30fc\u30d0\u30fc\u81ea\u52d5\u8d77\u52d5\u8a2d\u5b9a<\/strong>
[root@falcon21 ~]#\u00a0systemctl enable chronyd<\/strong>\u3000

NTP\u30b5\u30fc\u30d0\u30fc\u78ba\u8a8d<\/strong>\u3000\u3000\u3000\u3000\u3000NTP\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u6642\u523b\u540c\u671f\u72b6\u614b\u78ba\u8a8d<\/strong> [root@falcon21 ~]# chronyc sources<\/strong>
MS Name\/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^+ vmi2899903.contaboserver> 4 10 77 468 -1850us[-1850us] +\/- 11ms
^- time.cloudflare.com 3 10 77 462 +4700us[+4700us] +\/- 71ms
^- ntp1.hnd.jp.hojmark.net 2 10 177 460 -510us[ -509us] +\/- 11ms
^- 160.25.135.55 3 9 377 474 -676us[ -676us] +\/- 9893us
^+ 2001:a7ff:102::a 1 8 377 196 -178us[ -173us] +\/- 2987us
^- 2001:a7ff:102::b 1 8 377 63 -389us[ -389us] +\/- 3130us
^* 2001:a7ff:102::c 1 8 377 196 -305us[ -300us] +\/- 3261us

\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u6642\u523b\u540c\u671f<\/strong>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u6642\u8a08\u5408\u308f\u305b<\/a>\u3092\u53c2\u7167\u3000\u3000
\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

NTP\u30b5\u30fc\u30d0\u30fc\u69cb\u7bc9(chrony)\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000NTP\u30b5\u30fc\u30d0\u30fc\u306fOS \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u540c\u6642\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u304a\u308a\u3001\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u6642\u523b\u8a2d\u5b9a\u78ba\u8a8d\u3054\u3082\u3001\u6b63\u5e38\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u3042 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-187","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/pages\/187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=187"}],"version-history":[{"count":1,"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/pages\/187\/revisions"}],"predecessor-version":[{"id":188,"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=\/wp\/v2\/pages\/187\/revisions\/188"}],"wp:attachment":[{"href":"https:\/\/falcon21.space\/kazuya\/work\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}