{"id":45450,"date":"2024-10-06T23:27:14","date_gmt":"2024-10-06T15:27:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/45450\/"},"modified":"2024-10-06T23:27:14","modified_gmt":"2024-10-06T15:27:14","slug":"%e5%9c%a8-centos-%e5%ae%89%e8%a3%9d-ntp","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/45450\/","title":{"rendered":"\u5728 CentOS \u5b89\u88dd NTP"},"content":{"rendered":"<h1 id=\"%e5%9c%a8-centos-%e5%ae%89%e8%a3%9d-ntp-zQrYYCfdll\">\u5728 CentOS \u5b89\u88dd NTP<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u4f3a\u670d\u5668\u7ba1\u7406\u4e2d\uff0c\u6642\u9593\u7684\u6e96\u78ba\u6027\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u7528\u65bc\u65e5\u8a8c\u8a18\u9304\u3001\u6578\u64da\u5eab\u64cd\u4f5c\u9084\u662f\u7db2\u7d61\u5354\u8b70\uff0c\u6b63\u78ba\u7684\u6642\u9593\u90fd\u80fd\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002NTP\uff08Network Time Protocol\uff09\u662f\u4e00\u7a2e\u7528\u65bc\u540c\u6b65\u8a08\u7b97\u6a5f\u6642\u9418\u7684\u5354\u8b70\uff0c\u80fd\u5920\u78ba\u4fdd\u4f3a\u670d\u5668\u7684\u6642\u9593\u8207\u4e92\u806f\u7db2\u4e0a\u7684\u6642\u9593\u4f3a\u670d\u5668\u4fdd\u6301\u4e00\u81f4\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 CentOS \u7cfb\u7d71\u4e0a\u5b89\u88dd\u548c\u914d\u7f6e NTP\u3002<\/p>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%80%ef%bc%9a%e5%ae%89%e8%a3%9d-ntp-zQrYYCfdll\">\u6b65\u9a5f\u4e00\uff1a\u5b89\u88dd NTP<\/h2>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u60a8\u7684 CentOS \u7cfb\u7d71\u5df2\u7d93\u66f4\u65b0\u5230\u6700\u65b0\u7248\u672c\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u66f4\u65b0\u7cfb\u7d71\uff1a<\/p>\n<pre><code>sudo yum update<\/code><\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88dd NTP\uff1a<\/p>\n<pre><code>sudo yum install ntp<\/code><\/pre>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u60a8\u53ef\u4ee5\u6aa2\u67e5 NTP \u662f\u5426\u5df2\u6b63\u78ba\u5b89\u88dd\uff1a<\/p>\n<pre><code>ntp --version<\/code><\/pre>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%ba%8c%ef%bc%9a%e9%85%8d%e7%bd%ae-ntp-zQrYYCfdll\">\u6b65\u9a5f\u4e8c\uff1a\u914d\u7f6e NTP<\/h2>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u60a8\u9700\u8981\u914d\u7f6e NTP \u4f3a\u670d\u5668\u3002NTP \u7684\u914d\u7f6e\u6587\u4ef6\u4f4d\u65bc \/etc\/ntp.conf\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u6587\u672c\u7de8\u8f2f\u5668\uff08\u5982 vi \u6216 nano\uff09\u4f86\u7de8\u8f2f\u6b64\u6587\u4ef6\uff1a<\/p>\n<pre><code>sudo vi \/etc\/ntp.conf<\/code><\/pre>\n<p>\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u60a8\u53ef\u4ee5\u770b\u5230\u4e00\u4e9b\u9810\u8a2d\u7684 NTP \u4f3a\u670d\u5668\u3002\u60a8\u53ef\u4ee5\u6839\u64da\u9700\u8981\u6dfb\u52a0\u6216\u4fee\u6539\u4f3a\u670d\u5668\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u516c\u5171 NTP \u4f3a\u670d\u5668\uff1a<\/p>\n<pre><code>server 0.pool.ntp.org iburst\nserver 1.pool.ntp.org iburst\nserver 2.pool.ntp.org iburst\nserver 3.pool.ntp.org iburst<\/code><\/pre>\n<p>\u9019\u4e9b\u4f3a\u670d\u5668\u6703\u81ea\u52d5\u9078\u64c7\u6700\u63a5\u8fd1\u7684 NTP \u4f3a\u670d\u5668\uff0c\u4ee5\u78ba\u4fdd\u6642\u9593\u7684\u6e96\u78ba\u6027\u3002<\/p>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%89%ef%bc%9a%e5%95%9f%e5%8b%95-ntp-%e6%9c%8d%e5%8b%99-zQrYYCfdll\">\u6b65\u9a5f\u4e09\uff1a\u555f\u52d5 NTP \u670d\u52d9<\/h2>\n<p>\u914d\u7f6e\u5b8c\u6210\u5f8c\uff0c\u60a8\u9700\u8981\u555f\u52d5 NTP \u670d\u52d9\u4e26\u8a2d\u7f6e\u5176\u5728\u7cfb\u7d71\u555f\u52d5\u6642\u81ea\u52d5\u555f\u52d5\uff1a<\/p>\n<pre><code>sudo systemctl start ntpd\nsudo systemctl enable ntpd<\/code><\/pre>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5 NTP \u670d\u52d9\u7684\u72c0\u614b\uff1a<\/p>\n<pre><code>sudo systemctl status ntpd<\/code><\/pre>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e5%9b%9b%ef%bc%9a%e9%a9%97%e8%ad%89-ntp-%e5%90%8c%e6%ad%a5-zQrYYCfdll\">\u6b65\u9a5f\u56db\uff1a\u9a57\u8b49 NTP \u540c\u6b65<\/h2>\n<p>\u8981\u78ba\u8a8d NTP \u662f\u5426\u6b63\u5e38\u904b\u884c\u4e26\u540c\u6b65\u6642\u9593\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>ntpq -p<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a NTP \u4f3a\u670d\u5668\u7684\u5217\u8868\u53ca\u5176\u72c0\u614b\u3002\u5982\u679c\u60a8\u770b\u5230\u4e00\u500b\u661f\u865f\uff08*\uff09\u5728\u67d0\u500b\u4f3a\u670d\u5668\u65c1\u908a\uff0c\u9019\u8868\u793a\u8a72\u4f3a\u670d\u5668\u662f\u7576\u524d\u7684\u540c\u6b65\u6e90\u3002<\/p>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%ba%94%ef%bc%9a%e9%98%b2%e7%81%ab%e7%89%86%e8%a8%ad%e7%bd%ae-zQrYYCfdll\">\u6b65\u9a5f\u4e94\uff1a\u9632\u706b\u7246\u8a2d\u7f6e<\/h2>\n<p>\u5982\u679c\u60a8\u7684 CentOS \u7cfb\u7d71\u555f\u7528\u4e86\u9632\u706b\u7246\uff0c\u60a8\u9700\u8981\u5141\u8a31 NTP \u6d41\u91cf\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u958b\u653e NTP \u7684 UDP 123 \u7aef\u53e3\uff1a<\/p>\n<pre><code>sudo firewall-cmd --permanent --add-service=ntp\nsudo firewall-cmd --reload<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zQrYYCfdll\">\u7e3d\u7d50<\/h2>\n<p>\u5728 CentOS \u4e0a\u5b89\u88dd\u548c\u914d\u7f6e NTP \u662f\u78ba\u4fdd\u4f3a\u670d\u5668\u6642\u9593\u6e96\u78ba\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u4e0a\u8ff0\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u8a2d\u7f6e NTP \u670d\u52d9\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 CentOS \u4e0a\u5b89\u88dd NTP\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6642\u9593\u6e96\u78ba\u540c\u6b65\uff0c\u63d0\u5347\u4f3a\u670d\u5668\u6027\u80fd\u8207\u5b89\u5168\u6027\uff0c\u7c21\u55ae\u6b65\u9a5f\u8f15\u9b06\u5b8c\u6210\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-45450","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/45450","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=45450"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/45450\/revisions"}],"predecessor-version":[{"id":45451,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/45450\/revisions\/45451"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=45450"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=45450"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=45450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}