sync time with ntp server

following the previous section of Ubuntu configuration OpenStack One: Configure the host environment, continue to synchronize for installation time, and configure OpenStack's package source and install database Maridb. (The full text is done by hand-built and)First section connecting the configuration host environment http://www.cnblogs.com/skylarzhan/p/7702078.htmlOne, the installation time synchronization

Use NTP for Time Synchronization in CentOS71. NTP Clock Synchronization Methods NTP has two clock synchronization modes in linux: Direct synchronization and smooth synchronization:Direct SynchronizationUse the ntpdate command to synchronize and directly change the time. If

/ntpd.pid"Sync_hwclock=yes# change him to Yes! This will change the BIOS time as well! 1.3. Ports and ServicesPort 123Service ntpd Restart1.4.Firewall Configuration1.5.Setting the time zoneVi/etc/sysconfig/clock# The time zone of the system is defined bythe contents of/etc/localtime.# This file was only for evaluation by System-config-date,do not rely

1th. NTP time server Setup 1.1ntp Introduction NTP (networktime Protocol, Network Time Protocol) is a protocol that is used to synchronize the time of each computer in a network. Its purpose is to synchronize the computer clock t

for directory, inside by system.journal filell-d/var/log/journal/4513ad59a3b442ffa4b7ea88343fa55f # #查看权限du-sh/var/log/journal/4513ad59a3b442ffa4b7ea88343fa55f # #查看大小################# #如何同步系统时间 ##################1. Determine the time source address172.25.254.2542. Determine the time synchronization service used by the client host Chronyd.serviceRpm-qa|grep Chrony # #查询时间同步服务是否安装3. Load the

NTP Server: Network TimeprotocolBIOS the intrinsic characteristics of the internal chip can easily cause BIOS Time and UTC There are differences in global standard time. Time synchronization (Synchronize) is an effective way to avoid the

Time synchronization in a cluster can cause big data applications to run into confusion, causing unpredictable problems, such as HBase, which hangs when time differences are too large, so in a big data cluster, the NTP service should serve as a basic service, as shown below in the CentOS 7.2 Procedures for configuring NTP