Windows is used for several years, and there is always a time to change the system time. However, it is easy to adjust the system time. It is not that easy to call up a correct one. A few years ago (when I was still in college, it was about a junior) I used C # To write an NTP
Program But when the
1. change the system time zone to the Shanghai time zone cp/usr/share/zoneinfo/Asia/Shanghai/etc/localtime2. write a script ntp. cron #! /Bin/bash/usr/sbin/ntpdatentp.fudan.edu.cn | logger-tNTP put the script in/etc/cron. daily...
1. change the system time zone to the Shanghai tim
1. Select a server as the time synchronization server.2. Run regedit to open Registry Editor.3. Locate the registry key hkey_local_machine\system\currentcontrolset\services\w32time\config\, and in the right window, change the value of AnnounceFlags to 5.4. Continue to locate the registry key Hkey_local_machine\system\currentcontrolset\services\w32time\timeprovide
Server-side:1. PackagingSlightly....2. Modify the NTP service configuration fileConfiguration file location:/etc/ntp.confWhat to modify:# Set the IP network segment to synchronize with the server time , the following is the 192.168.x.x machine can synchronize with the serverRestrict 192.168.0.0 mask 255.255.0.0# Set th
Tags: mysql time sync ntpdate1. Adjust database server timeBecause the app shook a shake activity found out of date 15 minutes, but also can continue to shake, the problem is that the database server time than the application server
Basic configuration fileYou want to configure local time server server 127.127.1.0 must write this# --- GENERAL CONFIGURATION ---server aaa.bbb.ccc.dddserver 127.127.1.0fudge 127.127.1.010# Drift file.driftfile /etc/ntp/driftMy exampleRestrict 192.168.0.0 mask 255.255.25
Automatically synchronize the date and time of a linux host through network ntp
If you only need to synchronize data once, run the following command:
Rdate-s time.nist.gov
WhereTime.nist.govIs a time server, of course, you can also use another time
GMT/UTC/CST;/etc/localtime,/usr/share/zoneinfo/* time zone file,/etc/profile plus TZ variable;Hardware time RTC, system time; date,hwclock,tzselect;/usr/share/zoneinfo/asiaZdump Sichuan View the current time for each zone# Hwclock--set--date= "Mm/dd/yy hh:mm:ss" Set hardware time
NTP Server Setup1. determine that two hosts are in the same network segment and can ping each other 2. Click start , click run , type regedit, and then click " Determine " . 3. Locate and click the following registry subkey:Hkey_local_machine\system\currentcontrolset\services\w32time\parameters\type4. in the right pane, right-click the Type, and then click Modify . 5. " edit value " " numeric dat
The IP address of the NTP server that can be used in China, and the time deviation value of the Tailfeather server, the Tailfeather clock server live connection antenna, the antenna has been connected for more than 72 hours before testingTime-a.nist.gov 129.6.15.28 NIST, Gai
1. Go to the server, click: Windows+r pop-up run window---regedit---OKthen click OK.2. Expand: HKEY_LOCAL_MACHINE, SYSTEM, CurrentControlSet, Services, W32Time, Timeproviders, NtpServerOn the right side of the NtpServer key value enablied, the default of 0Instead, turn on the NTP server.3. Expand: HKEY_LOCAL_MACHINE, SYSTEM, CurrentControlSet, Services, W32Time,
1, domain-joined machines will synchronize with the domain time, the current exsi has not confirmed that only the Windows system effective2, remember the time zone of the system to be set in the East eight district3. Confirm that when ESXi is joined to a domain, the time is synchronized, as with domain control.4, in VCAC and IA configuration encountered
1. Modify the registry keyHkey_local_machine\system\currentcontrolset\services\w32time\timeproviders\ntpserverEnabled is set to 1 (default 0)Hkey_local_machine\system\currentcontrolset\services\w32time\config\AnnounceFlags set to 5 (default 10)2. Disable the firewall or set exceptions for UDP 123 ports.3. Run services.msc to set the Windows Time service to Automatic (delayed start)Network devices (such as Cisco, H3C switches ...) ) cannot synchronize
Computer time can not sync, computer time synchronization error resolution steps:
(Tip: Adjust the date and time to close to the current, and avoid problems when computer time is not synchronized or when synchronization occurs)
(Before starting the following settings, the
[Admin@arch036088.sqa.cm4 logs] $ ntpq-P remote refID st t when poll reach delay offset jitter ============== ========================================================== ======================= * ntp103.cm4. tbsi 10.225.208.100 2 U 225 256 377 0.464 0.149 0.019 + ntp104.cm4. tbsi 10.228.209.150 2 U 163 256 377-0.459 0.234
The front + number indicates the server responding to this request
RefID superior NTP
Linux Sync server 1 for multi-sync instances
Demand: Online also business requirements, meaning that n machines need to maintain a directory on their respective machines, and they are all the same drops. So, after two days of thinking about it, I decided to use rsync server+inotify to solve the problem. Of course
Select a machine that can sisu the network as a time server (can not be on or on the optional one, but only to ensure that the LAN time synchronization)
Configure this time server
install NTP
Configure
Tags: Local installation country Write ALS one task/dev/null ShanghaiThere are two Linux times. One is the system time, one is the hardware time!When synchronizing national time, there will be an error: No server suitable for synchronization foundNow the state authorized 210.72.145.44 is temporarily unable to useThis a
When the Linux server is in the wrong time, you can use the Ntpdate tool to correct the time.Installation: Yum Install NtpdateNtpdate Simple usage:# ntpdate IP# ntpdate 210.72.145.44The following are some of the available NTP server addresses:Common server address:
in the Ntpd-network time Protocol (NTP) daemon page. After a suitable period ofMourning, the Ntpdate program was to being retired from this distributionSynopsisntpdate [ -46BBDQSUV] [-a key] [-e Authdelay] [-K keyfile] [-o version] [-p samples] [-tTimeout] [-u user_name] server [...]DESCRIPTION[Refer to the Linux Man manual for details]Date
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