client is used to connect to the NTP server command file
/Usr/sbin/ntpq // Standard Network Timing protocol NTP) query Program
Configuration
[Root @ wap etc] # vi/etc/ntp. conf
Restrict default ignore // ignore all ntp requests. The restrict 127.0.0.1 restrict 218.
Test machine: CentOS 6.5ipaddr=192.168.1.229Rqm-qa |grep NTPNot installed, first installedYum-y Intall NTPConfiguration file LocationVim/etc/ntp.confDriftfile/var/lib/ntp/drift #这个代表上层服务与本机主板时钟之间时间差别记录在这个文件里Restrict #管理权限Restrict default kod nomodify notrap nopeer noquery #拒绝IPV4用户restrict-6 default kod nomodify notrap nopeer noquery #拒绝IPV6用户The parameters are as follows:Ignore: Turn off all NTP Online Ser
1. Determine that two hosts are in the same network segment and can ping each other. (Change the server type to NTP.) To do this, follow these steps: A. Click Start, click Run, type regedit, and then click OK.
B. Locate and click the following registry subkey:
Hkey_local_machinesystemcurrentcontrolsetservicesw32timeparameterstype
C. In the right pane, right-click Type, and then click Modify.
D. Type
BackgroundWhen the server is more, time is accurate or not, the same is a big problem. Although this problem is always overlooked, it is necessary to unify the time. Here's how to configure a Linux time server within a LAN.Configuration of the environment and requirements:1. Assume that a Linux machine time server with IP 192.168.0.240 is in the 192.168.0.0 netwo
About NTPNTP ( networktime Protocol UTC 0.1ms In most places on the Internet its accuracy can be achieved 1-50ms . NTP The server is using NTP the protocol provides time synchronization services. NTP Server InstallationView system comes with
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
In the production environment, linux server time synchronization is important. The following describes how to build a time server. One slave build time server 1、install ntpservertarzxvfntp-4.2.6.tar.gz cdntp-4.2.6./configure -- prefix =/usr/local/ntp -- enable-all-clocks -- enable-parse-clocksmake am
In the production
Linux NTPServer(time server)Date–s 22:12:30 # Set timeleap seconds 7 months 1 days : minutes at this time, to turn off the NTP service1.1.Software InstallationRequired software: installed by defaultYum Install Ntp-yntpdate-4.2.6p5-1.el6.centos.i686Fontpackages-filesystem-1.41-1.1.el6.noarchntp-4.2.6p5-1.el6.centos.i6861.2.ConfigurationNtpConfiguration file:Vi/etc
Install and configure the NTP server in CentOSIntroduction
See wikipedia: Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks.Refer to Baidu Encyclopedia: NTP is a Network Time Protocol used to synchronize the Time
for NTP services
/usr/sbin/ntpdata; The NTP client is used to connect to the NTP server command file
/USR/SBIN/NTPQ Standard Network Timing Protocol (NTP) query program
Configuration
[Root@wap etc]# vi/etc/ntp.conf
Restrict default Ignore
Ignore all
11grac Configuring the NTP server TIP01 IP:162.20.1.228NBSP;NBSP;NTP service-side TIP02 ip:162.20.1.229 Before the NTP client configures the NTP server, verify that the server is instal
NTP server ConstructionNTP is a time server that provides the Synchronization Update time of other computers, so that the time of each computer is the same, without any deviation due to the long running of the system. The client also needs to install the NTP service.1. Install NTP
The recent Exsi server time is always wrong, in the time configuration is always not correct display, using the following methods, you can quickly update to the latest time.System: Exsi 5.5
1. Login to ESXi host via SSH
How to open exsi ssh I will not say, we go online search, very simple.
2. Modify NTP profile via SSH
Vi/etc/ntp.conf
Add a row to the configuration file:TOS Maxdist 30
3. Modify/ETC/LI
In an Oracle 10G environment, if you want to build a cluster, you need to synchronize the clock, which requires an NTP server.1, on the timing system machine, edit/etc/ntp.confRetrict default NomodifyRestrict 127.0.0.1Server 127.127.1.0Fudge 127.127.1.0 Stratum 8Driftfile/var/lib/ntp/driftBroadcastdelay 0.008Then restart the NTPD serviceService NTPD Restart2, on
The client first installs NTP Yum install ntpshell> ntpdate 95.222.122.210 shell> ntpdate 202.112.10.60 shell> ntpdate 192.93.2.20 Note: When the client Synchronizes time, the following error occurs: No server suitable for synchronization found. Cause: After you restart the NTP service on the NTP
NTP server1. Enter Rpm-qa|grep NTP to see if an NTP server is installed2. If the Yum-y install NTP installation is not installed3. Modify/etc/ntp.conf Add the original server annotated local s
You need to set up a time synchronization server in the LAN to unify the system time of each client and server. On the Internet, most of the NTP servers are indeed based on Linux. search, experiment, and summary: Write an article using the w32time service that comes with windwos2003 for time synchronization. windows 2003 Serv
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