{"id":51923,"date":"2023-05-28T14:19:37","date_gmt":"2023-05-28T06:19:37","guid":{"rendered":"http:\/\/lrxjmw.cn\/?p=51923"},"modified":"2023-05-28T14:19:37","modified_gmt":"2023-05-28T06:19:37","slug":"centos-install-ntp","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/centos-install-ntp.html","title":{"rendered":"Centos \u5b89\u88c5 NTP \u670d\u52a1"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>NTP\u670d\u52a1\u5668\u3010Network Time Protocol\uff08NTP\uff09\u3011\u662f\u7528\u6765\u4f7f\u8ba1\u7b97\u673a\u65f6\u95f4\u540c\u6b65\u5316\u7684\u4e00\u79cd\u534f\u8bae\uff0c\u5b83\u53ef\u4ee5\u4f7f\u8ba1\u7b97\u673a\u5bf9\u5176\u670d\u52a1\u5668\u6216\u65f6\u949f\u6e90\uff08\u5982\u77f3\u82f1\u949f\uff0cGPS\u7b49\u7b49)\u505a\u540c\u6b65\u5316\uff0c\u5b83\u53ef\u4ee5\u63d0\u4f9b\u9ad8\u7cbe\u51c6\u5ea6\u7684\u65f6\u95f4\u6821\u6b63\uff08LAN\u4e0a\u4e0e\u6807\u51c6\u95f4\u5dee\u5c0f\u4e8e1\u6beb\u79d2\uff0cWAN\u4e0a\u51e0\u5341\u6beb\u79d2\uff09\uff0c\u4e14\u53ef\u4ecb\u7531\u52a0\u5bc6\u786e\u8ba4\u7684\u65b9\u5f0f\u6765\u9632\u6b62\u6076\u6bd2\u7684\u534f\u8bae\u653b\u51fb\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u68c0\u67e5\u662f\u5426\u5df2\u7ecf\u5b89\u88c5ntp<\/strong><\/div>\n<pre># rpm -qa|grep ntp\r\nntp-4.2.4p8-2.el6.centos.i686<\/pre>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u914d\u7f6entp.conf<\/strong><\/div>\n<pre># vim \/etc\/ntp.conf<\/pre>\n<p>\u9700\u8981\u4fee\u6539\u4ee5\u4e0b\u51e0\u9879\uff1a<\/p>\n<ul>\n<\/ul>\n<ul>restrict\uff1a\u8868\u793a\u8bbe\u7f6e\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u672cNTP\u670d\u52a1\u5668\u7684\u6743\u9650<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>\u5176\u89c4\u5219\u4e3a\uff1arestrict ip mask netmask_ip parameter<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>\u5176\u4e2dIP \u53ef\u4ee5\u662f\u5730\u5740\u4f4d\uff0c\u4e5f\u53ef\u4ee5\u662fdefault\uff1bparameter\u6709\u4ee5\u4e0b\u9009\u9879\uff1a<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>ignore\uff1a\u5173\u95ed\u6240\u6709\u7684NTP\u94fe\u63a5\u670d\u52a1<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>nomodify\uff1a\u8868\u793aclient\u4e0d\u80fd\u66f4\u6539server\u7aef\u7684\u53c2\u6570\u4fe1\u606f<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>notrust\uff1a\u8be5client\u9664\u975e\u901a\u8fc7\u8ba4\u8bc1\uff0c\u5426\u5219\u8be5\u5ba2\u6237\u7aef\u7684\u6765\u6e90\u5c06\u88ab\u89c6\u4e3a\u4e0d\u4fe1\u4efb\u7f51\u57df<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>noquery\uff1a\u4e0d\u63d0\u4f9b\u5ba2\u6237\u7aef\u7684\u65f6\u95f4\u67e5\u8be2<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>server\uff1a<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>\u8868\u793a\u8bbe\u7f6e\u672cNTP\u670d\u52a1\u5668\u8fde\u63a5\u5230\u8fdc\u7a0bNTP\u670d\u52a1\u5668\u7684\u5730\u5740<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>server 127.127.1.0<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>fudge 127.127.1.0 stratum 10<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>\u4ee5\u4e0a\u4e24\u884c\u8868\u793a\u5982\u679cserver\u6307\u5b9a\u7684\u670d\u52a1\u5668\u8fde\u63a5\u5931\u8d25,\u5219\u91c7\u7528\u672c\u5730\u7684\u65f6\u95f4\u6765\u540c\u6b65\u65f6\u95f4<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>\u914d\u7f6e\u65e5\u5fd7\uff1a<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<\/ul>\n<ul>statsdir \/var\/log\/ntp\/<\/ul>\n<p>&nbsp;<\/p>\n<ul>logfile \/var\/log\/ntp\/ntp.log<\/ul>\n<p>\u672c\u6587\u505a\u4e86\u7b80\u5355\u7684\u914d\u7f6e\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<pre>driftfile \/var\/lib\/ntp\/drift\r\nrestrict 127.0.0.1\r\nrestrict 192.168.0.0 mask 255.255.255.0 nomodify notrap\r\nserver 210.72.145.44 prefer\r\nserver 133.100.11.8\r\nserver 0.asia.pool.ntp.org\r\nserver 2.asia.pool.ntp.org\r\nserver 1.asia.pool.ntp.org\r\nserver 127.127.1.0 # local clock\r\nfudge 127.127.1.0 stratum 8\r\nincludefile \/etc\/ntp\/crypto\/pw\r\nkeys \/etc\/ntp\/keys\r\nstatsdir \/var\/log\/ntp\/\r\nlogfile \/var\/log\/ntp\/ntp.log<\/pre>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u542f\u52a8ntp<\/strong><\/div>\n<pre># mkdir -p \/var\/log\/ntp &amp;&amp; touch \/var\/log\/ntp\/ntp.log\r\n# chkconfig ntpd on\r\n# service ntpd start<\/pre>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u5ba2\u6237\u7aef\u6d4b\u8bd5<\/strong><\/div>\n<p>\u901a\u8fc7linux\u5ba2\u6237\u7aef\u6d4b\u8bd5ntp server<\/p>\n<pre># ntpdate 192.168.0.4\r\n5 Aug 15:43:22 ntpdate[30958]: adjust time server 192.168.0.4 offset 0.000576 sec<\/pre>\n<p>\u5f53\u51fa\u73b0\u4ee5\u4e0a\u4fe1\u606f\u8868\u793a\u6210\u529f\u914d\u7f6entp server\uff01<\/p>\n<p>\u6ce8\u610f: \u5982\u679cntp\u521a\u542f\u52a8\u8d77\u6765,\u5728\u5ba2\u6237\u7aef\u540c\u6b65\u7684\u65f6\u5019\u4f1a\u51fa\u73b0 no server suitable for synchronization found \u7684\u9519\u8bef\u63d0\u793a,\u8fd9\u662f\u56e0\u4e3antp server \u521a\u542f\u52a8\u8d77\u6765,\u8fd8\u6ca1\u6709\u548c\u4e0a\u7ea7ntp\u53d6\u5f97\u540c\u6b65,\u5927\u6982\u8fc75\u5206\u949f\u5de6\u53f3\u518d\u5728\u5ba2\u6237\u7aef\u4e0a\u540c\u6b65,\u53ef\u5f97\u5230\u6b63\u786e\u4fe1\u606f\u3002<\/p>\n<blockquote>\n<p style=\"text-align: left; color: #88a6a4;\">\u539f\u6587\u6765\u81ea\uff1a<a href=\"http:\/\/www.toutiao.com\/a6363600831749390594\/\" target=\"_blank\" rel=\"noopener\">http:\/\/www.toutiao.com\/a6363600831749390594\/<\/a><\/p>\n<p style=\"text-align: left; color: #88a6a4;\">\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/lrxjmw.cn\/centos-install-ntp.html\" target=\"_blank\" rel=\"noopener\">http:\/\/lrxjmw.cn\/centos-install-ntp.html<\/a><span style=\"float: right;\">\u7f16\u8f91\uff1a\u51af\u632f\u534e\uff0c\u5ba1\u6838\u5458\uff1a\u9004\u589e\u5b9d<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u5bfc\u8bfb NTP\u670d\u52a1\u5668\u3010Network Time Protocol\uff08NTP\uff09\u3011\u662f\u7528\u6765\u4f7f\u8ba1\u7b97\u673a\u65f6\u95f4\u540c\u6b65\u5316\u7684\u4e00\u79cd\u534f\u8bae\uff0c [&hellip;]<\/p>\n","protected":false},"author":63,"featured_media":51947,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-51923","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/51923","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/63"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=51923"}],"version-history":[{"count":9,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/51923\/revisions"}],"predecessor-version":[{"id":273545,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/51923\/revisions\/273545"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/51947"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=51923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=51923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=51923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}