如何搭建NTP服務器完成自動同步時間
發布時間:2024-04-11 文章來源:深度系統下載 瀏覽:
| 1.服務端安裝NTP yum install ntp
2.配置NTP
vim /etc/ntp.conf
增加或修改以下紅色部分配置命令：
# For more information about this file, see the man pages
# ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5).
driftfile /var/lib/ntp/drift
# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery
# Permit all access over the loopback interface. This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
restrict 127.0.0.1
restrict -6 ::1
restrict 192.168.1.0 mask 255.255.255.0
restrict 202.120.2.101
# Hosts on local network are less restricted.
#restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (https://www.pool.ntp.org/join.html).
server 202.120.2.101
server 127.127.1.0
fudge 127.127.1.0
server 0.centos.pool.ntp.org iburst
server 1.centos.pool.ntp.org iburst
server 2.centos.pool.ntp.org iburst
server 3.centos.pool.ntp.org iburst
#broadcast 192.168.1.255 autokey # broadcast server
#broadcastclient # broadcast client
#broadcast 224.0.1.1 autokey # multicast server
#multicastclient 224.0.1.1 # multicast client
#manycastserver 239.255.254.254 # manycast server
#manycastclient 239.255.254.254 autokey # manycast client
# Enable public key cryptography.
#crypto
includefile /etc/ntp/crypto/pw
# Key file containing the keys and key identifiers used when operating
 3.啟動并查看NTP服務
service ntpd start #啟動NTP服務
chkconfig ntpd on #設置開機自啟動
netstat -anutp | grep 123 #查看NTP的端口
 4.查看NTP服務狀態
ntpstat #查看ntp服務器有無和上層連通
ntpq -p #查看ntp服務器與上層ntp服務器的狀態
服務端配置完成，NTP狀態正常。
5.客戶端安裝NTP服務，NTP同步時間
yum install ntp
ntpdate 192.168.1.13
 客戶端同步服務端時間成功。
由于虛擬機是采用橋接上網，物理機也可以同步成功。
 近期比較忙，等有空了再附加以下內容，先列出來。
附1：ntpdate和cron的使用
附2：linux的時間、時區的配置
附3：配置NTP時常見錯誤 |
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