ntp time servers

://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p2.tar.gzTAR-ZXVF ntp-4.2.8p2.tar.gzCD NTP-4.2.8P2./configure--PREFIX=/USR/LOCAL/NTP--enable-all-clocks--enable-parse-clocksMake-j3 make Install #yum安装Yum-y Install NTPC

/ntp/drift# Permit time synchronization with We time source, but does not# permit the source to a query or modify the service on this system.Restrict default Kod nomodify notrap nopeer noqueryrestrict-6 default Kod nomodify notrap nopeer noquery# Permit All access over the loopback interface. This could# is tightened as well, but to does so would effect some of#

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

all NTP packets that is not cryptographically authenticated." This forces remotes servers to authenticate themselves to your (client) ntpdSolve:Remove the notrust.2. Check the firewall for NTP server. The server's firewall may be blocking the UPD 123 port.You can use the command#service iptables StopTo switch off the iptables service and then try to synchronize

server.NTPD depends on the parameters of the configuration file to provide a clock service to other servers or to synchronize clocks from other servers. All configurations are in the/etc/ntp.conf file.= = = Note Firewall Shield NTP port = = =The NTP server default port is 123, and if the firewall is turned on, there m

)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 found there may be 2 reasons for this problem:1. Check the version of NTP, if you are using ntp4.2 (including 4.2) after the version, in the definition of restrict used notrust, will lead to the above error.Use the following command to check t

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

proposed in 1985 by Professor David L. Mills of the University of the United States, in addition to estimating the round-trip latency of packets on the network, and independently estimating the computer clock bias, To achieve high precision computing on the network, it is a communication protocol designed to enable different machines to maintain the same time on the Internet. The time server (timeserver) i

Today there is a small project, completely self-made, originally thought very simple NTP service, I give toss for 2 hours only to support the head (formerly are operations, not too much attention, so this technology, in simple all need to kiss taste AH), here records for the future do not waste time. Target environment, 5 Linux CentOS 6.3, one as NTPD service and external public

Time Protocol (NTP), a protocol designed to synchronize the clocks of computers over a network, for policyears. NTP Version 3 is a standard protocol ormalized in RFC 1305 protocol hat uses the user datateprotocol (UDP) and Port 123. Unlike PCs or servers, Cisco network devices specifically need to run

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

Linux distributions provide a default configuration pointing to the time server they maintain. For example, the following is a Fedora Configuration: [Time]# NTP =# FallbackNTP = 0.fedora.pool.ntp.org 1.fedora.pool.ntp.org You can enter other time servers you want to use, su

/drift # Permit time synchronization with our time source, but do not # permit the source to query or modify the service on this system. restrict default nomodify notrap nopeer noquery # Permit all access over the loopback interface. this cocould # be tightened as well, but to do so wocould effect some of # the administrative functions. restrict 127.0.0.1restrict: 1 # Hosts on local network are less restric

The cat used to write ASM and C often do not forget the "reverse", and then write the drive when the VM and the like to build a "two-machine" debugging Environment for debugging, but also for some small software crack cd-key the joy of God Horse. Since the use of the bird so-called advanced Dynamic language Ruby, this black inverse mentality seems to gradually weaken ... But it's hard to get the chance to catch the itch.Ruby+linux's open source way has not been to the bin code as well as dis asm

configuration file, is also the only one;/usr/share/zoneinfo/: Provided by Tzdata, the time format for each time zone corresponds to the file/etc/sysconfig/clock: Set the time zone and whether to use UTC time Clock configuration file, after each boot Linux will automatically read this file to set their own system to d

: the client cannot use the ntpc and ntpq programs to modify the server's time parameters, but the client can still use this host for network calibration; noquery: the client cannot use commands such as ntpq and ntpc to query the time server, which is equal to network time when NTP is not provided. notrap: remote event

under mongown and view the default gateway under ipconfig. Nameserver 10.17.1.1 1. Install ntp service in yum [Root @ node1 ~] Yum install-y ntp 2. Compile the ntp configuration file/etc/ntp. conf and add the following two lines, Restrict 10.17.1.0 mask limit 255.0 nomodify Server 210.72.145.44 prefer For the

the NTP configuration file/etc/NTP. conf and add the following two lines, Restrict 10.17.1.0 mask limit 255.0 nomodify Server 210.72.145.44 prefer For the time servers provided on the Internet, you can find them online. There are time

# hwclock -systohccn.pool.ntp.org is a public NTP server located in China to synchronize your time (If your time is different from the server's time cut, you may not be able to synchronize time or even execute commands such as sudo reboot ). 4. Set automatic online synchron

(5), ntp_misc (5), ntp_mon (5 ). driftfile/var/lib/ntp/drift # Permit time synchronization with our time source, but do not # permit the source to query or modify the service on this system. restrict default nomodify notrap nopeer noquery# Permit all access over the loopback interface. This cocould # be tightened as well, but to do so wocould effect some of # th