ntp server appliance

Environment: NTP Server:centos 6.6 x86_64 192.168.8.250NTP Client:centos 6.6 x86_64 192.168.8.90 First, NTP introduction 1.NTP Service Introduction NTP (the network time Protocol) is a network time protocol for synchronizing computers in a network.It is negotiated with a specific algorithm through UDP packet switch

NTP (Network time Protocol) server: Temporal serverGMT (Greenwich Mean time,gmt time): Greenwich Mean TimeSummer saving time (or daylight saving time): Daylight savings (DST)UTC (coordinated Universal time): Concord Standard TimesThe most standard time is calculated by atomic clocks, according to the Atomic Oscillation cycleUTC and GMT time are 16 minutes apart due to different timing methodsSoftware Clock:

The network model is probably like this.The IP of the core layer two devices is 3.3.20.2 and 3.3.20.3The IP of the server area switch is 3.3.20.252 and 3.3.20.253The IP address of the NTP server is 3.3.100.103Initial configuration:Primary Core SwitchNTP LoggingNTP Master 2NTP Server 3.3.100.103Standby Core SwitchNTP Lo

Preface a time error occurred on a self-managed server, which caused a problem in the display time of mail sending, here we will take the time to record the process of building an NTP server. The Network Time procotol (NTP protocol) aims to deliver a unified and standard time on the Internet. The specific implementatio

Network Time Protocol (NTP) is a standard Internet Protocol used for Time synchronization on the Internet. NTP is used to synchronize computer time to certain time standards. The current Time standard is Universal Time Coordinated ). The primary developer of NTP is Professor David L. Mills from the University of Delaware. What is the use of

First, build preparation1. Determine your time zone#date命令可以查看当前系统时间, China's time zone is CST. To configure the time zone using the Tzselect command 650) this.width=650; "border=" 0 "src="/e/u261/themes/default/images/spacer.gif "style= " Backgroun D:url ("/e/u261/lang/zh-cn/images/localimage.png") no-repeat center;border:1px solid #ddd; "alt=" Spacer.gif "/>Configuration file Modification:/etc/sysconfig/clock2. Check NTP service Program#rpm-qa |gre

ObjectiveIn the world of computers, time synchronization is extremely important for co-ordination between computers, and it takes time to synchronize our high availability clusters, load balancing, DNS services, and so on. NTP (Network time Protocol) is a protocol used to synchronize the time of each computer in a network. Its purpose is to synchronize the computer clock to the World coordinated UTC, its accuracy in the LAN up to 0.1ms, in most places

recently, found that the company domain member user time and the domain server time is not synchronized, to achieve: 1, the domain member server and intra-domain client and domain NTP server synchronization, 2, the domain NTP server