small ntp server

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

I. Installing the NTP software 1. Check if the NTP-related package is installed. Rpm-qa | grep NTP 2. Install the NTP software. Yum-y Install NTP Two. Parameter explanationIgnore: Turn off all NTP Online Services Nomodify:

◆ 1. what is network time service NetTimeService is similar to network file download service FTP and network browsing service WWW. it is a network service that provides network time server ◆ 1. what is network time service? The network Time Service, like the network file downloading Service FTP and the network browsing Service WWW, is a network Service. a computer that provides the network Time Service is called a network Time

Experiment environment for configuring NTP server under RHEL6: [root@www.linuxidc.com ~] # Cat/etc/RedHat-releaseRedHatEnterpriseLinuxServerrelease6.0 (Santiago) [root@www.linuxidc.com ~] # Uname-r2.6.32-71.el6.x86_64 I. Principle of NTP service 1. Principle N NTP server con

One, build time synchronization server 1, compile and install NTP server RPM- QA | grep NTP If not found, the NTP package is not installed, the NTP package is found on the CD, and the RPM-UVH

Build an NTP server in Linux BackgroundWhen there are too many servers, it is a big problem whether the time is accurate or not. Although this problem is always ignored, it is necessary to unify the time. The following describes how to configure the Linux time server in the LAN. For example, if the IP address range is 50.50.50.0/24, the IP address range is IP50.5

=/usr--bindir=/usr/sbin--sysconfdir=/etc--enable-linuxcaps-- With-lineeditlibs=readline--docdir=/usr/share/doc/ntp-4.2.8p9--enable-all-clocks--enable-parse-clocks-- Enable-clockctl make make install[Email protected] ~]# ntpntpd ntpdate ntpdc ntp-keygen ntpq ntptime ntptrace ntp-wait4. Create a configuration file[Email protected] ~]# cp/etc/init.d/ntpd.bak/etc/

Last time I talked about how to adjust the Linux system time. In the project, we often need to view system logs when analyzing system problems. In this case, if a cluster or ha application is used, the time is very important for locating the sequence and cause of the problem. Therefore, we hope to have a way to ensure that the time of the two servers is the same, and it is best to achieve the standard time. This is what it means to build an NTP

CentOS NTP server installation and configuration BackgroundWhen there are too many servers, it is a big problem whether the time is accurate or not. Although this problem is always ignored, it is necessary to unify the time. The following describes how to configure the Linux time server in the LAN. Configuration environment and requirements:1. Assume that the Lin

Linux Time synchronization Server SetupNTP(Network Time Protocol) is used to make the computerTime Synchronizationudp protocol 123 The port provides services externally, it can make the computer to its server or clock source (such as quartz clock, gps and so on to do time synchronization, it can provide high accuracy time correction (lan is less than the standard difference between 1 milliseconds, wa

How to handle ntp server exceptions Preface: First, what is a reflection amplification attack? NTP is transmitted over UDP, so the source address can be forged.There is a type of query command in the NTP protocol. A short command can be used to send a long message to the server.Amplification attacks are based on such c

On the basis of the Linux system after installation--based on CentOS (5.8/6.4)--we mentioned how to automatically update the server time at timed intervals. Also mentioned, when the number of intranet machines, if all go to the public network NTP server synchronization time is there will be delay. Of course, this is not just the only meaning of deploying an

Centos5.6 installing the NTP server requires time synchronization between several servers for some services and experiments. Therefore, you have the prerequisites for building NTP. the specific steps are as follows: 1. install the ntp service yuminstallntp. I *-y2, modify/etc/ntp