{"id":49034,"date":"2025-07-30T14:51:48","date_gmt":"2025-07-30T06:51:48","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/49034.html"},"modified":"2025-07-30T14:51:48","modified_gmt":"2025-07-30T06:51:48","slug":"%e9%85%8d%e7%bd%ae%e8%87%aa%e5%b7%b1%e7%9a%84ntp-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%81%9a%e6%97%b6%e9%97%b4%e5%90%8c%e6%ad%a5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/49034.html","title":{"rendered":"\u914d\u7f6e\u81ea\u5df1\u7684NTP \u670d\u52a1\u5668\u505a\u65f6\u95f4\u540c\u6b65"},"content":{"rendered":"

\u2705 \u63a8\u8350\u65b9\u6848：\u4f7f\u7528 chrony \u642d\u5efa NTP \u670d\u52a1\u5668（\u9002\u7528\u4e8e CentOS 7\/8\/9）<\/h3>\n

chrony \u662f CentOS \u63a8\u8350\u7684 NTP \u5b9e\u73b0，\u7cbe\u5ea6\u9ad8\u3001\u8d44\u6e90\u5360\u7528\u4f4e\u3001\u540c\u6b65\u5feb，\u9ed8\u8ba4\u5728 CentOS 8+ \u4e2d\u53d6\u4ee3\u4e86 ntpd\u3002<\/p>\n

\n

🔧 \u4e00\u3001\u5b89\u88c5 chrony<\/h4>\n

sudo yum install -y chrony<\/p>\n

\n

📁 \u4e8c\u3001\u4fee\u6539\u914d\u7f6e \/etc\/chrony.conf<\/h4>\n

sudo vi \/etc\/chrony.conf<\/p>\n

\u627e\u5230\u5e76\u4fee\u6539\u6216\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9：<\/p>\n

1. \u914d\u7f6e\u4e0a\u6e38 NTP \u670d\u52a1\u5668（\u53ef\u7528\u516c\u7f51 NTP）<\/h5>\n

\u4f8b\u5982：<\/p>\n

server ntp.aliyun.com iburst server ntp.tencent.com iburst<\/p>\n

2. \u5141\u8bb8\u5185\u7f51\u5ba2\u6237\u7aef\u8bbf\u95ee\u672c NTP \u670d\u52a1\u5668：<\/h5>\n

（\u5047\u8bbe\u5ba2\u6237\u7aef\u5728 192.168.1.0\/24 \u7f51\u6bb5）<\/p>\n

allow 192.168.1.0\/24<\/p>\n

\u4e5f\u53ef\u4ee5\u4f7f\u7528 allow 0.0.0.0\/0 \u8868\u793a\u5141\u8bb8\u6240\u6709\u5730\u5740\u8bbf\u95ee（\u4e0d\u5b89\u5168，\u614e\u7528）<\/p>\n

\n

🔃 \u4e09\u3001\u542f\u52a8\u5e76\u8bbe\u7f6e\u5f00\u673a\u81ea\u542f<\/h4>\n

sudo systemctl enable chronyd sudo systemctl start chronyd<\/p>\n

\n

🔥 \u56db\u3001\u653e\u901a\u9632\u706b\u5899 UDP 123 \u7aef\u53e3<\/h4>\n

sudo firewall-cmd –add-service=ntp –permanent sudo firewall-cmd –reload<\/p>\n

\u5982\u679c\u4f60\u6ca1\u6709\u4f7f\u7528 firewalld，\u7528 iptables：<\/p>\n

sudo iptables -A INPUT -p udp –dport 123 -j ACCEPT sudo service iptables save<\/p>\n

\n

🔍 \u4e94\u3001\u9a8c\u8bc1\u672c\u5730\u662f\u5426\u5728\u540c\u6b65<\/h4>\n

chronyc tracking chronyc sources -v<\/p>\n

\u67e5\u770b\u662f\u5426\u76d1\u542c 123 \u7aef\u53e3：<\/h4>\n

sudo netstat -unlp | grep 123<\/p>\n

\u5e94\u770b\u5230 chronyd \u6b63\u5728\u76d1\u542c UDP 123\u3002<\/p>\n

\n

🧪 \u516d\u3001\u5ba2\u6237\u7aef\u5982\u4f55\u4f7f\u7528\u4f60\u7684\u670d\u52a1\u5668\u540c\u6b65\u65f6\u95f4？<\/h3>\n

1. \u786e\u4fdd systemd-timesyncd \u5df2\u5b89\u88c5\u5e76\u542f\u7528<\/h4>\n

Ubuntu \/ Debian<\/h5>\n

sudo systemctl enable systemd-timesyncd
\nsudo systemctl start systemd-timesyncd<\/p>\n

CentOS（\u9ed8\u8ba4\u65e0 timesyncd，\u5efa\u8bae\u6539\u7528 chrony）<\/h5>\n
\n

2. \u7f16\u8f91 timesyncd \u914d\u7f6e<\/h4>\n

sudo vi \/etc\/systemd\/timesyncd.conf<\/p>\n

\u4fee\u6539\u6216\u6dfb\u52a0：<\/p>\n

[Time] NTP=\u4f60\u7684\u670d\u52a1\u5668IP\u6216\u57df\u540d<\/p>\n

\u793a\u4f8b：<\/p>\n

[Time] NTP=192.168.1.100<\/p>\n

\u7136\u540e\u91cd\u542f\u670d\u52a1：<\/p>\n

sudo systemctl restart systemd-timesyncd<\/p>\n

\u542f\u7528 NTP \u81ea\u52a8\u540c\u6b65：<\/p>\n

sudo timedatectl set-ntp true<\/p>\n

\n

3. \u9a8c\u8bc1\u662f\u5426\u540c\u6b65\u6210\u529f<\/h4>\n

timedatectl status<\/p>\n

\u5e94\u770b\u5230：<\/p>\n

NTP service: active System clock synchronized: yes<\/p>\n

\u8fd8\u53ef\u4ee5\u67e5\u770b\u8be6\u7ec6\u4fe1\u606f：<\/p>\n

timedatectl show-timesync –all<\/p>\n

\n

📌 \u4e03\u3001\u8865\u5145\u8bf4\u660e：\u4f7f\u7528 ntpd（\u65e7\u65b9\u6cd5，\u4e0d\u63a8\u8350）<\/h3>\n

\u82e5\u4f60\u575a\u6301\u4f7f\u7528\u4f20\u7edf ntpd：<\/p>\n

sudo yum install ntp
\nsudo vi \/etc\/ntp.conf<\/p>\n

\u4fee\u6539：<\/p>\n

server ntp.aliyun.com iburst
\nrestrict 192.168.1.0 mask 255.255.255.0 nomodify notrap<\/p>\n

\u7136\u540e\u542f\u52a8\u670d\u52a1\u5e76\u5f00\u542f\u7aef\u53e3：<\/p>\n

sudo systemctl enable ntpd
\nsudo systemctl start ntpd<\/p>\n

\n

\u2705 \u603b\u7ed3：\u642d\u5efa NTP \u670d\u52a1\u5668\u6b65\u9aa4（Chrony\u7248）<\/h3>\n\n\u6b65\u9aa4\u547d\u4ee4\u6216\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n
\u5b89\u88c5\u670d\u52a1<\/td>\nyum install chrony<\/td>\n<\/tr>\n
\u7f16\u8f91\u914d\u7f6e<\/td>\n\/etc\/chrony.conf，\u914d\u7f6e\u4e0a\u6e38\u65f6\u95f4\u6e90 + allow \u7f51\u6bb5<\/td>\n<\/tr>\n
\u542f\u52a8\u670d\u52a1<\/td>\nsystemctl start chronyd<\/td>\n<\/tr>\n
\u5f00\u673a\u81ea\u542f<\/td>\nsystemctl enable chronyd<\/td>\n<\/tr>\n
\u653e\u901a\u9632\u706b\u5899<\/td>\nfirewall-cmd –add-service=ntp –permanent<\/td>\n<\/tr>\n
\u5ba2\u6237\u7aef\u8fde\u63a5<\/td>\nserver <\u670d\u52a1\u5668IP> iburst<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

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