{"id":121,"date":"2020-11-28T22:33:24","date_gmt":"2020-11-28T13:33:24","guid":{"rendered":"http:\/\/www.pearlblue.net\/wordpress\/?p=121"},"modified":"2020-11-28T22:34:33","modified_gmt":"2020-11-28T13:34:33","slug":"chrony","status":"publish","type":"post","link":"https:\/\/pearlblue.net\/wordpress\/?p=121","title":{"rendered":"Chrony"},"content":{"rendered":"\n

\u6642\u523b\u3092\u540c\u671f\u3059\u308bNTP\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5b9f\u88c5\u3067\u3042\u308bChrony\u3092\u8a2d\u5b9a\u3057\u305f\u3002centOS 8\u3067\u306f\u6a19\u6e96\u7684\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u306e\u3067\uff0c\u8a2d\u5b9a\u3092\u8abf\u6574\u3059\u308b\u3060\u3051\u3067\u3088\u3044\u3002
\/etc\/chrony.conf\u3092\u5c11\u3057\u7de8\u96c6\u3057\u305f\u3002<\/p>\n\n\n\n

#pool 2.centos.pool.ntp.org iburst
pool ntp.nict.jp iburst<\/p>\n\n\n\n

\u3068<\/p>\n\n\n\n

#allow 192.168.0.0\/16
allow 10.0.0.0\/24<\/p>\n\n\n\n

\u3092\u5909\u66f4\u3057\u305f\u3002\u305d\u306e\u5f8c<\/p>\n\n\n\n

firewall-cmd –add-service=ntp –permanent
firewall-cmd –reload
systemctl restart chronyd
systemctl enable –now chronyd
chronyc sources<\/p>\n\n\n\n

\u3092\u5b9f\u884c<\/p>\n\n\n\n

210 Number of sources = 4
MS Name\/IP address Stratum Poll Reach LastRx Last sample
^+ ntp-a2.nict.go.jp 1 10 377 317 -63us[ -63us] +\/- 776us
^* ntp-b3.nict.go.jp 1 10 377 615 +10us[+9974ns] +\/- 724us
^+ ntp-a3.nict.go.jp 1 10 377 855 -38us[ -39us] +\/- 799us
^+ ntp-b2.nict.go.jp 1 10 377 459 +34us[ +34us] +\/- 778us<\/p>\n\n\n\n

\u5927\u4e08\u592b\u306e\u3088\u3046\u3060\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6642\u523b\u3092\u540c\u671f\u3059\u308bNTP\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5b9f\u88c5\u3067\u3042\u308bChrony\u3092\u8a2d\u5b9a\u3057\u305f\u3002centOS 8\u3067\u306f\u6a19\u6e96\u7684\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u306e\u3067<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-121","post","type-post","status-publish","format-standard","hentry","category-centos-8"],"_links":{"self":[{"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=121"}],"version-history":[{"count":2,"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/121\/revisions"}],"predecessor-version":[{"id":123,"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/121\/revisions\/123"}],"wp:attachment":[{"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pearlblue.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}