zoukankan      html  css  js  c++  java
  • Configure NTP Server SUSE15

    https://www.server-world.info/en/note?os=SUSE_Linux_Enterprise_15&p=ntp&f=1

     Install Chrony and Configure NTP server for time adjustment.

    1.Install Chrony.

    dlp:~ # zypper -n install chrony

    2. Configure Chrony.

    dlp:~ # vi /etc/chrony.conf
    # line 3: change servers for synchronization (replace to your timezone's one)
    
    #
    ! pool pool.ntp.org iburst
    server ntp.nict.jp iburst
    server ntp1.jst.mfeed.ad.jp iburst
    # line 25: add the network range you allow to receive requests
    
    allow 10.0.0.0/24
    dlp:~ # systemctl start chronyd
    
    dlp:~ # 
    systemctl enable chronyd

    3.If Firewalld is running, allow NTP service. NTP uses 123/UDP.

    dlp:~ # firewall-cmd --add-service=ntp --permanent
    
    success
    dlp:~ # firewall-cmd --reload
    
    success

    4.Verify it works normally like follows.

    dlp:~ # chronyc sources
    
    210 Number of sources = 2
    MS Name/IP address         Stratum Poll Reach LastRx Last sample
    ===============================================================================
    ^* ntp-b3.nict.go.jp             1   6    17    11   -412us[-5299us] +/-   10ms
    ^- ntp1.jst.mfeed.ad.jp          2   6    17    12  +1433us[+1433us] +/-   87ms

    dlp:~ # systemctl restart chronyd

    -----------------------------------------------------

     Configure NTP Client.

    1.  The settings of NTP Client on SUSE are mostly the same with Server's settings, so refer to Chrony Settings. For different settings from Server's one, Clients don't need to receive time synchronization requests from other computers, so it does not need to set access permission.

    2. If you don't use NTP service daemon but use a command to sync time at once, run like follows.

        

    # sync time
    
    dlp:~ # chronyc makestep
    
    200 OK
  • 相关阅读:
    cocos代码研究(6)有限时间动作类(FiniteTimeAction)学习笔记
    cocos代码研究(5)Action学习笔记
    cocos代码研究(1)Node学习笔记
    cocos代码研究(2)Label学习笔记
    顽石系列:Linux基础笔试
    Spring笔记:事务管理
    Spring笔记:AOP基础
    Spring笔记:IOC基础
    MyBatis:学习笔记(4)——动态SQL
    Linux:进程管理
  • 原文地址:https://www.cnblogs.com/weikui/p/14088711.html
Copyright © 2011-2022 走看看