linux ntp client

Linux ntp time server and client installation and configuration 1. Main file and command:/etc/ntp. conf server configuration file/etc/sysconfig/clock time zone configuration file/bin/date display and set the time command/sbin/hwclock for BIOS clock (hardware clock) the command/usr/sbin/ntpd is mainly used to provide th

Configuring NTP to set up the local time server NTP is a protocol used to keep the system and a precise time source at time. in Linux, we can use the Network Time Protocol to keep our system accurate. install: # Yum install NTP or find the ntp rpm package from the installati

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 the server IPthatthe NTP server itself synchronizes ,127.127.1.0 to synchronize with the ser

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 server 127.127.1.14. Restart the service systemctl restart Ntpd.service use ntpq-p to see if it is a local ntpd5.

/ntp/ntp.drift#restrict default Kod nomodify notrap nopeer noquery defaults to all operations denied by the client#restrict 127.0.0.1 allow native address everything#restrict 192.168.1.0 Mask 255.255.255.0 nomodify allows all clients in the LAN to connect to this server for synchronization time.#/ETC/INIT.D/NTPD Start# chkconfig--level ntpd on# VI/ETC/SYSCONFIG/NTPDSync_hwclock=yesWatch Ntpq-p4.

noquery Then allow all operations on the local address Code: Restrict 127.0.0.1 Finally, we allow all clients in the LAN to connect to the server for synchronization, but refuse to allow them to modify the time on the server. Code: Restrict 192.168.1.0 mask 255.255.255.0 nomodify Add these three to/etc/ntp. conf to complete our simple configuration. NTP can also use key for authentication, which will not b

Linux time synchronization ntp service installation and configuration, linux time synchronization ntp service When we need to manage the time of multiple servers, it is too troublesome to modify one server. The NTP service can solve this problem for us! 1. First install

NetworkTimeProtocol (NTP, Network Time Protocol) is used to synchronize all of its client clock services. The NTP server uses the local system Network Time Protocol (NTP, Network Time Protocol) to synchronize all of its client clock services. The

completed our simple configuration. NTP can also use key to do authentication, here is not detailed introduction8. Settings for NTP ClientTo do this we already have a relay server of our own. If we want to make time synchronization for other clients in the LAN, then we should build another relay server, and then point all the client to both servers ( Be careful

calibration target time source is not necessarily accurate. The time skew of different computers in the corporate local area network, especially the time skew between the client/server, can have an impact on some services that require time synchronization. For example, for ease of management, the server has set a time-out period before the account expires and the user cannot access the Internet network. And if your computer time is not synchronized w

NTP provides a good viewing tool: NTPQ (NTP query)I suggest that you can run the NTPQ command to monitor the operation of the server after you open the NTP server. Here we can use the Watch command to view the changes in server values over time # Watch Ntpq-pEvery 2.0s:ntpq-p Sat June 7 00:41:45 2007Remote refID St T when poll reach delay offset jitter==========

The server is very time-critical, the generation of Linux server files, logs, and database connections are based on the logic of timeTask processing, if the time is not synchronized, then, the processing of the task, and the analysis of the problem log, the time is wrong, difficult to analyzeDirectly change the Linux server time, the impact is particularly large, we all know that the server farm startup is

executing netdate-d from the client is as follows:Transmit (192.168.30.22)Transmit (192.168.30.22)Transmit (192.168.30.22)Transmit (192.168.30.22)Transmit (192.168.30.22)192.168.30.22:server Dropped:no DataServer 192.168.30.22, Port 123.....Jul 17:42:24 ntpdate[14148]: No server suitable for synchronization foundThis problem can occur because:Check the version of NTP, if you are using ntp4.2 (including 4.2

, many libraries are under the "target-mipsel_24kec+dsp_glibc-2.21" path rather than the "toolchain-mipsel_24kec+dsp_ gcc-4.8-linaro_glibc-2.21 "directory, so you need to specifically specify the path of the OpenSSL, or compile will be prompted to find the appropriate file, the compilation failed. ./configure--prefix=/home/sky/ntp/ntp_out \ --enable-shared \ --disable-static \ with-yielding-select=manual \ --disable-main \ --host=mipsel-openwrt-

executing netdate-d from the client is as follows:Transmit (192.168.30.22)Transmit (192.168.30.22)Transmit (192.168.30.22)Transmit (192.168.30.22)Transmit (192.168.30.22)192.168.30.22:server Dropped:no DataServer 192.168.30.22, Port 123.....Jul 17:42:24 ntpdate[14148]: No server suitable for synchronization foundThis problem can occur because:Check the version of NTP, if you are using ntp4.2 (including 4.2

Time is performed by a quartz crystal oscillator circuit in the computer; Networktimeprotocol (NTP); Typically, time synchronization is performed as follows:; (1): NTP client sends a time to the NTP server, (2): When the server receives the package ; (3): When the client rec

1. "The NTP socket is on use, exiting" error appears. The reason for this is that the system NTPD server is running and can be via PS aux | grep ntpd View, if you still want to manually synchronize time, you must first stop the service, the command is:service ntpd stop or/etc/init.d/ntpd stop2. Npdate time.windows.com or ntpdate us.pool.ntp.org will be able to synchronize time successfully. This article is from the

Tags: Linux ntp time synchronizationFirst, build time synchronization server1. Compile and install NTP serverRpm-qa | grep NTPIf not found, the NTP package is not installed, the NTP packet is found on the CD, and theRPM-UVH ntp***

Windows XP Client time update script NTP :: Windows XP Client time Update script NTP reg ADD "HKEY_LOCAL_MACHINE\software\microsoft\ windows\CurrentVersion\datetime\servers "/ve/t reg_sz/d 3/freg Add" HKEY_LOCAL_MACHINE\software\microsoft\ windows\CurrentVersion\datetime\servers "/V 1/t reg_sz/d time.windows.com/f

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 as the client and the external NTP server