\u3069\u3046\u3084\u3089\u6700\u8fd1\u306eRaspbian\u3067\u306fntpd\u3092\u6642\u523b\u540c\u671f\u306b\u4f7f\u3063\u3066\u3044\u306a\u3044\u3089\u3057\u3044\u3002systemd-timesyncd\u3068\u3044\u3046systemd\u30b5\u30fc\u30d3\u30b9\u306b\u7f6e\u304d\u63db\u308f\u3063\u3066\u3044\u308b\u3088\u3046\u3060\u3002Raspberry Pi\u306fRTC\u3092\u7a4d\u3093\u3067\u3044\u306a\u3044\u306e\u3067\u4f55\u3089\u304b\u306e\u6642\u523b\u540c\u671f\u3092\u8d77\u52d5\u6642\u306b\u884c\u308f\u306a\u3044\u3068\u6642\u523b\u304c\u3067\u305f\u3089\u3081\u306a\u3082\u306e\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u3002\u53e4\u3044Raspbian\u3067\u306f\u8d77\u52d5\u6642\u306bntpdate\u3067\u4e00\u56de\u9650\u308a\u306e\u6642\u523b\u540c\u671f\u3092\u884c\u3063\u3066\u3044\u305f\u3088\u3046\u306b\u8a18\u61b6\u3057\u3066\u3044\u308b\u304c\u3001stretch\u4ee5\u964d\u306fsystemd\u30b5\u30fc\u30d3\u30b9\u3067\u81ea\u52d5\u7684\u306b\u6642\u523b\u540c\u671f\u3092\u884c\u3046\u3088\u3046\u306b\u5909\u66f4\u3055\u308c\u305f\u3088\u3046\u3060\u3002<\/p>\n\n\n\n
\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u8a2d\u5b9a\u3067\u306f\u3053\u308c\u306fDebian\u304c\u63d0\u4f9b\u3057\u3066\u3044\u308b\u516c\u958bNTP\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u6642\u523b\u3092\u540c\u671f\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3060\u3002\u65e5\u672c\u56fd\u5185\u304b\u3089\u306f\u9060\u3059\u304e\u308b\u306e\u3067\u3001\u56fd\u5185\u3067\u53c2\u7167\u3067\u304d\u308b\u516c\u958bNTP\u30b5\u30fc\u30d0\u30fc\u306b\u66f8\u304d\u63db\u3048\u308b\u3053\u3068\u306b\u3059\u308b\u3002<\/p>\n\n\n\n
\u66f8\u304d\u63db\u3048\u308b\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306f\/etc\/systemd\/timesyncd.conf\u3060\u3002\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u5185\u306e[Time]\u30bb\u30af\u30b7\u30e7\u30f3\u306bNTP\u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3059\u308b\u5834\u6240\u304c\u3042\u308b\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\u3055\u308c\u3066\u3044\u308b\u304c\u3001\u3053\u308c\u3092\u56fd\u5185\u306e\u30b5\u30fc\u30d0\u30fc\u306eFQDN\u306b\u66f8\u304d\u63db\u3048\u308b\u3002<\/p>\n\n\n\n
[Time]
NTP=ntp.nict.jp
FallbackNTP=ntp.jst.mfeed.ad.jp<\/p>\n\n\n\n
\u30e1\u30a4\u30f3\u306fNICT\u306e\u516c\u958bNTP\u30b5\u30fc\u30d0\u30fc\u3092\u6307\u5b9a\u3059\u308b\u304c\u3001\u3053\u3053\u306b\u7e4b\u304c\u3089\u306a\u304b\u3063\u305f\u5834\u5408\u306e\u4ee3\u66ffNTP\u30b5\u30fc\u30d0\u30fc\u3082FallbackNTP\u306b\u56fd\u5185\u306e\u516c\u958bNTP\u30b5\u30fc\u30d0\u30fc\u3092\u6307\u5b9a\u3057\u3066\u304a\u304f\u3002<\/p>\n\n\n\n
\u518d\u8d77\u52d5\u3059\u308c\u3070\u3001\u6307\u5b9a\u3057\u305fNTP\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u6642\u523b\u3092\u53d6\u5f97\u3057\u3066\u81ea\u52d5\u7684\u306b\u540c\u671f\u3057\u3066\u304f\u308c\u308b\u3002\u540c\u671f\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u306f\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u78ba\u8a8d\u3067\u304d\u308b\u3002<\/p>\n\n\n\n
sudo systemctl status systemd-timesyncd<\/p>\n\n\n\n
\u8868\u793a\u3055\u308c\u308b\u30ed\u30b0\u304b\u3089\u6642\u523b\u540c\u671f\u306e\u72b6\u6cc1\u304c\u78ba\u8a8d\u3067\u304d\u308b\u3002\u5ff5\u306e\u305f\u3081date\u30b3\u30de\u30f3\u30c9\u306e\u51fa\u529b\u3067\u6b63\u3057\u3044\u4eca\u306e\u6642\u523b\u304c\u5410\u304d\u51fa\u3055\u308c\u308b\u3053\u3068\u3092\u898b\u3066\u304a\u3053\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u3069\u3046\u3084\u3089\u6700\u8fd1\u306eRaspbian\u3067\u306fntpd\u3092\u6642\u523b\u540c\u671f\u306b\u4f7f\u3063\u3066\u3044\u306a\u3044\u3089\u3057\u3044\u3002systemd-timesyncd\u3068\u3044\u3046systemd\u30b5\u30fc\u30d3\u30b9\u306b\u7f6e\u304d\u63db\u308f\u3063\u3066\u3044\u308b\u3088\u3046\u3060\u3002Raspberry Pi\u306fRTC\u3092\u7a4d\u3093\u3067\u3044\u306a\u3044\u306e\u3067\u4f55\u3089\u304b\u306e … “Raspbian\u306e\u6642\u523b\u81ea\u52d5\u540c\u671f\u8a2d\u5b9a” \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1000","post","type-post","status-publish","format-standard","hentry","category-2"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4j6YI-g8","jetpack-related-posts":[],"_links":{"self":[{"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/posts\/1000","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/comments?post=1000"}],"version-history":[{"count":1,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/posts\/1000\/revisions"}],"predecessor-version":[{"id":1001,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/posts\/1000\/revisions\/1001"}],"wp:attachment":[{"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/media?parent=1000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/categories?post=1000"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/tags?post=1000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}