Ntp time servers - server 2.asia.pool.ntp.org. server 3.asia.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information ...

 
 server 2.asia.pool.ntp.org. server 3.asia.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information ... . Nfl gird

The public can now access the time service through the Internet Time Server of the Observatory at stdtime.gov.hk. The server supports NTP, SNTP, Time and Daytime internet protocols. Besides, IPv6 users may also access NTP service through time.hko.hk. To make use of the time service, a synchronization software has to … server 1.nl.pool.ntp.org. server 2.nl.pool.ntp.org. server 3.nl.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP ... The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for vendors . See all zones in … The Masterclock NTP100 family of NTP time servers provide accurate timing to networks and conform to NTPv2 (RFC 1119), NTPv3 (RFC 1306) and NTPv4 (RFC 5905). Each NTP100 device can operate on a local area network (LAN) or act as an enterprise-wide source for legally-traceable time and date distribution, depending upon your network configuration requirements. All used servers are evaluated for a consistent time. In case of disagreements, the largest set of agreeing servers (truechimers) is used to produce a combined reference time, thereby declaring other servers as invalid (falsetickers). Usually it takes about five minutes (five good samples) until a NTP server is accepted as a …Instead the most common questions are tried to be answered, enabling everybody to get a working configuration. All we do here is invent games to pass the time. John O' Donohue. 1. About this Document. The NTP FAQ and HOWTO was originally edited by: Ulrich Windl. Dale R. Worley. David Dalton, Hewlett-Packard.The public can now access the time service through the Internet Time Server of the Observatory at stdtime.gov.hk. The server supports NTP, SNTP, Time and Daytime internet protocols. Besides, IPv6 users may also access NTP service through time.hko.hk. To make use of the time service, a synchronization software has to … server 2.europe.pool.ntp.org. server 3.europe.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our ... An error stating that a program cannot find a server indicates that there is a connection error. Unfortunately, determining the cause of the error can be challenging. This error fr... server 2.asia.pool.ntp.org. server 3.asia.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information ... NTP home - the website about ntp The NTP Pool DNS server uses GeoIP data from MaxMind to help choose an NTP server from the Pool. Meinberg, makers of incredibly fine time server systems. The Public servers abuse and the Fixing the NTP server abuse problem threads on the comp.protocols.time.ntp newsgroup have caused …Feb 25, 2563 BE ... All NTP servers are supposed to be traceable back to International Atomic Time. This means they'll all provide exactly the same time, within the ...In today’s digital age, email has become an essential part of our personal and professional lives. Whether you are sending important business communications or staying in touch wit...The time offset between the NTP servers reference time and the Italian national time scale UTC(IT) is continuously monitored and is kept below the level of one millisecond. The synchronization precision depends on the informatics network topology and on the distance between the NTP servers and the PC/server to be synchronized. Normally a ...The NTP Pool DNS server uses GeoIP data from MaxMind to help choose an NTP server from the Pool. Meinberg, makers of incredibly fine time server systems. The Public servers abuse and the Fixing the NTP server abuse problem threads on the comp.protocols.time.ntp newsgroup have caused this …METAS NTP time service. METAS is responsible for the dissemination of the official time in Switzerland and is offering a free NTP (Network Time Protocol ) dissemination service, which allows synchronizing computer clocks over the network. ... The alias ntp.metas.ch points to one of the above servers. Last modification …The NTP appliance receives the time signal via a GPS antenna, which needs to be in clear, 360° view of the sky and is sealed to IP65 standards. An additional time source – radio – is also available for WWVB, MSF or DCF time signal. The NTP server then delivers the time received to the devices on your network via an … server 1.pl.pool.ntp.org. server 2.pl.pool.ntp.org. server 3.pl.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP ... server 2.uk.pool.ntp.org. server 3.uk.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for ...server 2.asia.pool.ntp.org. server 3.asia.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please …Public NTP Time Servers. From NBS Special Publication 432 (1979 edition, now out of print) Please note the location of the public NTP time servers lists has moved. They can be found at the NTP.Servers Web.server 2.lv.pool.ntp.org. server 3.lv.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for ...In order to ensure data reliability and minimize the risk of data loss, it is essential for database administrators to regularly perform full backups of their SQL Server databases....GPS / GNSS, NTP Time Server, NTP Slave, NTP Client, NTP Time Synchronization, GPS Primary Reference (PRC) Clock ITU-T G.811.When browsing the internet or using certain applications, you may have come across the term “server.” But what exactly is a server, and how does it relate to your computer? In this...In addition to Netnod's NTP servers, it may be helpful to use other freely available NTP servers such as: pool time.nist.gov iburst pool ptbtime1.ptb.de iburst pool ptbtime2.ptb.de iburst pool ptbtime3.ptb.de iburst. NIST and PTB are the state measuring institutes in the USA and Germany, respectively, which also have publicly available NTP … Network Time Protocol (NTP) is a protocol used to synchronize computer clock times in a network . It belongs to and is one of the oldest parts of the TCP/IP protocol suite. The term NTP applies to both the protocol and the client-server programs that run on computers. The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for vendors . See all zones in … server 1.nl.pool.ntp.org. server 2.nl.pool.ntp.org. server 3.nl.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP ... Key Benefits of the GPS Time Server. Accurate: stratum one time server that receives time from up to 12 satellites. Secure: sits behind your firewall. User-friendly: easy to install, time is automatically …Learn about the NTP Pool Project, Google's public network time servers, and how to configure your client and synchronize with a public NTP server. Find out the advantages …Đây là nguồn đồng hồ tham chiếu cho các server Stratum 2. Các máy tính này còn được gọi là time server. Các server Stratum 1 (với NTPv3 hay trước đó) có thể không hoạt động với độ chính xác của cấp Stratum 1; Stratum 2 : Là các máy tính gửi các yêu cầu NTP đến cho server Stratum ...Previously, Amazon Time Sync was available through EC2 instances. Now, you can access the Amazon Time Sync Service at time.aws.com as a publicly available NTP service in addition to the connection provided directly to EC2 instances. This means your devices and infrastructure outside of AWS, such as …Mar 14, 2554 BE ... ... Server และ PC ภายในระบบ network จึงมีความจำเป็นที่จะต้องตั้งเวลาให้ตรงกัน โดย โปรโตคอลมาครฐานที่เป็นที่นิยมใช้คือ NTP (Network Time Protocol). NTP ...The NTP Project conducts Research and Development in NTP, a protocol designed to synchronize the clocks of computers over a network to a common timebase. NTP is what ensures the reliability of billions of devices around the world, under the sea, and even in space. Accurate timekeeping is vital to the many applications which have revolutionized …The NTP server receives accurate Coordinated Universal Time (UTC) from an authoritative clock source, such as an atomic clock or GPS. Then, the NTP client ...Public NTP Time Servers. From NBS Special Publication 432 (1979 edition, now out of print) Please note the location of the public NTP time servers lists has moved. They can be found at the NTP.Servers Web.The NTP servers use a custom-build FPGA-based hardware implementation for responding to the NTP requests, using IPv4 or IPv6, unsigned or signed, at a full line-rate speed of …What is NTP Server Used for? An NTP server is a time source, while an NTP client is a system or device that tries to synchronize its clock with a server. Servers can be primary or secondary. A primary server gets UTC time signals from a highly precise source, such as an atomic clock or, more typically, a GPS signal source.In addition to the settings common to all payload types, the Time Server payload defines the following keys: timeServer timeZone The ntp server to connect to. server 1.no.pool.ntp.org. server 2.no.pool.ntp.org. server 3.no.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP ... Feb 2, 2563 BE ... You'll have better luck with pool.ntp.org.Once you decide which NTP server to use, tell Ubuntu to update its time against that server daily by typing: sudo vi /etc/cron.daily/ntpdate. And insert (press the “i” key) a line that says: #!/bin/sh. ntpdate 10.0.1.2. And save it (by typing “:wq”) Now make it executable: sudo chmod 755 /etc/cron.daily/ntpdate.The NTP subnet operates with a hierarchy of levels, where each level is assigned a number called the stratum. Stratum 1 (primary) servers at the lowest level are directly synchronized to national time services via satellite, radio or telephone modem. Stratum 2 (secondary) servers at the next higher level are synchronized to stratum 1 …The NTP Project conducts Research and Development in NTP, a protocol designed to synchronize the clocks of computers over a network to a common timebase. NTP is what ensures the reliability of billions of devices around the world, under the sea, and even in space. Accurate timekeeping is vital to the many applications which have revolutionized …server 1.fr.pool.ntp.org. server 2.fr.pool.ntp.org. server 3.fr.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP ...May 31, 2564 BE ... NTP Server หรือ ไทม์เซิร์ฟเวอร์ (Time Server) คือ เป็นเครื่องเซิร์ฟเวอร์ประเภทหนึ่ง ที่ทำหน้าที่เป็นเครื่องที่ใช้อ้างอิงเวลาของระบบเครือข่าย เพื่อให้คอมพิวเตอร์...NTP allows networked devices, such as clocks, phones and computers, to request and receive time from a server that, in turn, receives precise time from a definitive time source, like an atomic clock. NTP was developed in the 1980s and is now on version four. Since its release, it’s been used to synchronise the critical systems of businesses ...NTP clients and servers synchronize to the Coordinated Universal Time (UTC) timescale used by national laboratories and disseminated by radio, satellite and … The Masterclock NTP100 family of NTP time servers provide accurate timing to networks and conform to NTPv2 (RFC 1119), NTPv3 (RFC 1306) and NTPv4 (RFC 5905). Each NTP100 device can operate on a local area network (LAN) or act as an enterprise-wide source for legally-traceable time and date distribution, depending upon your network configuration requirements. IJS operates several NTP time servers: one public (with restrictions) stratum-1 server goodtime.ijs.si with GPS time receiver, one public stratum-2 server time.ijs.si, and three lower-stratum servers for internal use (ntp1.ijs.si, ntp2.ijs.si, ntp3.ijs.si).Supported protocols are NTP (version 3 and 4) and SNTP. IJS users should …The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for vendors . See all zones in …Let’s see how you can configure NTP Server on Windows Server 2019/2022. The Windows Time service uses the Network Time Protocol (NTP) to help synchronize time across a network. NTP is an Internet time protocol that includes the discipline algorithms necessary for synchronizing clocks (Microsoft Docs).The following server supports only the NTP format and transmits UT1 time rather than UTC(NIST). For details about the UT1 server, please see the UT1 NTP Information page … Welcome to the home of the Network Time Protocol (NTP) Project. The NTP Project conducts Research and Development in NTP, a protocol designed to synchronize the clocks of computers over a network to a common timebase. NTP is what ensures the reliability of billions of devices around the world, under the sea, and even in space. Accurate ... svl2.ntp.se. The NTP service is free to use for anyone anywhere. The NTP servers use a custom-build FPGA-based hardware implementation for responding to the NTP requests, using IPv4 or IPv6, unsigned or signed, at a full line-rate speed of 10Gb/s per interface. They use 1PPS and 10MHz signals from the local time scales to achieve high accuracy ...An NTP Time Server is a server that provides accurate time to various devices connected to it. NTP, which is short for Network Time Protocol, is a protocol specifically designed for this purpose and is one of the oldest Internet protocols in existence. Millions of devices like computers, smartphones, tablets, routers, TVs, … server 2.cz.pool.ntp.org. server 3.cz.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for ... The public can now access the time service through the Internet Time Server of the Observatory at stdtime.gov.hk. The server supports NTP, SNTP, Time and Daytime internet protocols. Besides, IPv6 users may also access NTP service through time.hko.hk. To make use of the time service, a synchronization software has to …Nov 13, 2563 BE ... Share your videos with friends, family, and the world.server 0.at.pool.ntp.org server 1.at.pool.ntp.org server 2.at.pool.ntp.org server 3.at.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that …Defines an NTP server to use for time synchronization, or updates the settings of an existing server with new values. Up to eight servers can be defined. The no ...NTP client for setting system time from NTP servers. ntpd : 4.2.6p4-1 : 168.021 : The ISC ntp suite is a collection of tools used to synchronize the system clock with remote NTP time servers and run/montior local NTP servers. This package contains the ntpd server. See ntpd: ntpd-ssl Find and use NTP servers in North America by adding server names to your ntp.conf file. See the number of active servers in each country and zone, and the historical trends of server counts. server 2.asia.pool.ntp.org. server 3.asia.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please …Network Time Protocol (NTP) is an internet protocol used to synchronize with computer clock time sources in a network. It belongs to and is one of the oldest parts of the TCP/IP …The NTP (Network Time Protocol) protocol lets you synchronise the time on PCs, servers and other equipment on your campus network based on an accurate reference time. For this, you will need to use the Belnet NTP server, which receives this reference time, which is itself shared between GPS satellites. Simply use one …The NTP Pool DNS server uses GeoIP data from MaxMind to help choose an NTP server from the Pool. Meinberg, makers of incredibly fine time server systems. The Public servers abuse and the Fixing the NTP server abuse problem threads on the comp.protocols.time.ntp newsgroup have caused this …The pool.ntp.org project is a very large virtual cluster of NTP network time servers which provide a reliable and easy to use NTP service. NTP pool servers are used by millions of clients around the world. Indeed, it is the preferred time reference for many Linux distributions and network appliance manufacturers. …Mar 16, 2566 BE ... Most if not all NTP servers speak UTC and give you a UTC timezone, and your system adapts by offsetting based on your tz libraries on your ...The What and Why on NTP Time Servers? NTP (Network Time Protocol) is a network protocol that enables you to synchronize clocks on devices over a network. It …server 1.ch.pool.ntp.org. server 2.ch.pool.ntp.org. server 3.ch.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP ...The stratum indicates how close to the "absolute time" the NTP server is. Zero is the source of time, like a GPS device or atomic clock. Stratum 1 is the server that connects to the absolute clock source (stratum 0) and provides its time info to other clients and servers. Stratum 2 is a server that gets its time info from the stratum 1 server ...Various NTP packages are available for Unix/Linux/BSD etc, including NTP, NTPsec, Chrony and OpenNTPD (where the 'pool' directive is called servers with an 's'). They usually have an ntp.conf file (also sometimes called ntpd.conf) for configuring the NTP server.See the example above, but consult the documentation for the relevant package as well, because …Go to Control Panel. Go to Clock and Region. Click Date and Time. Go to the Internet Time tab. Click Change settings.. For Server:, type time.cloudflare.com and click Update now. Click OK. To use our NTP server, change the time configuration in your device to point to time.cloudflare.com.This section of the NTP FAQ introduces and explains the basic features of NTP, the Network Time Protocol. The discussion is limited to the more theroretical aspects of NTP. ... 4.1.6 How many NTP servers are available in the Internet? According to A Survey of the NTP Network(1999) there were at least …server 2.hk.pool.ntp.org. server 3.hk.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for ...The public can now access the time service through the Internet Time Server of the Observatory at stdtime.gov.hk. The server supports NTP, SNTP, Time and Daytime internet protocols. Besides, IPv6 users may also access NTP service through time.hko.hk. To make use of the time service, a synchronization software has to …server 2.south-america.pool.ntp.org. server 3.south-america.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please ...GPS NTP time servers provide networks with an accurate time reference for precisely setting the system time on servers, workstations, routers, telephone systems, CCTV cameras and other network infrastructure. There are however a large number of internet based time servers located in Australia that can be used completely free of …NTP home - the website about ntp The NTP Pool DNS server uses GeoIP data from MaxMind to help choose an NTP server from the Pool. Meinberg, makers of incredibly fine time server systems. The Public servers abuse and the Fixing the NTP server abuse problem threads on the comp.protocols.time.ntp newsgroup have caused …GPS / GNSS, NTP Time Server, NTP Slave, NTP Client, NTP Time Synchronization, GPS Primary Reference (PRC) Clock ITU-T G.811.server 2.uk.pool.ntp.org. server 3.uk.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for ...NTP client for setting system time from NTP servers. ntpd : 4.2.6p4-1 : 168.021 : The ISC ntp suite is a collection of tools used to synchronize the system clock with remote NTP time servers and run/montior local NTP servers. This package contains the ntpd server. See ntpd: ntpd-sslserver 1.ch.pool.ntp.org. server 2.ch.pool.ntp.org. server 3.ch.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP ...

Once you decide which NTP server to use, tell Ubuntu to update its time against that server daily by typing: sudo vi /etc/cron.daily/ntpdate. And insert (press the “i” key) a line that says: #!/bin/sh. ntpdate 10.0.1.2. And save it (by typing “:wq”) Now make it executable: sudo chmod 755 /etc/cron.daily/ntpdate.. Intrusion prevention system

ntp time servers

A UK manufacturer of computer and computer network time synchronisation devices. Solutions include dedicated ntp servers and ntp reference clock time servers for PCs. World Time Solutions A manufacturer of precision time synchronization systems: high bandwidth GPS time servers, secure dual source …May 16, 2012 · Show whether or not the system is configured to receive time from an NTP server. Show the NTP server(s) the system is receiving time from. Show the time of the last synchronization. Show the current time on the system. What command(s) would be necessary to achieve these results? Looking for a solution that's cross-compatible with Windows XP, 7 ... In addition to the settings common to all payload types, the Time Server payload defines the following keys: timeServer timeZone The ntp server to connect to.All Pool Servers. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for vendors .If you are managing a network of your own with many sites it is sensible to consider having a hierarchy using a centralized set of NTP servers in your own ...The Network Time Protocol (NTP) is one of the most accurate and flexible means of sending time over the Internet. It can be used by almost any type of computer. The protocol is …If you use an older version of windows you can try. net time /setsntp:"0.pool.ntp.org 1.pool.ntp.org 2.pool.ntp.org". The same can be achieved by, as administrator, right-clicking the clock in the taskbar, selecting 'Adjust Date/Time' and entering the server name in the 'Internet Time' tab. Meinberg made a port of the ntp daemon for windows .Once you decide which NTP server to use, tell Ubuntu to update its time against that server daily by typing: sudo vi /etc/cron.daily/ntpdate. And insert (press the “i” key) a line that says: #!/bin/sh. ntpdate 10.0.1.2. And save it (by typing “:wq”) Now make it executable: sudo chmod 755 /etc/cron.daily/ntpdate.NTP home - the website about ntp The NTP Pool DNS server uses GeoIP data from MaxMind to help choose an NTP server from the Pool. Meinberg, makers of incredibly fine time server systems. The Public servers abuse and the Fixing the NTP server abuse problem threads on the comp.protocols.time.ntp newsgroup have caused this project to …Internet NTP servers also provide no guarantee of service, which can be problematic if network synchronization is critical. These issues can be solved by a local NTP server. Local NTP Servers. A stratum 1 time server with direct connection to a hardware clock, such as GPS, is often referred to as a local NTP server. These have a number of ... server 0.europe.pool.ntp.org. server 2.europe.pool.ntp.org. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our ... If it can't find a unique secondary server that provides a time which is a close fit to the time returned by the primary server, it will fail with "Inconsistent Responses" The most common causes for this is if multiple servers are configured but point to the same IP address, or you're using the default servers and you are in a region with only 1 actual server in the …Đây là nguồn đồng hồ tham chiếu cho các server Stratum 2. Các máy tính này còn được gọi là time server. Các server Stratum 1 (với NTPv3 hay trước đó) có thể không hoạt động với độ chính xác của cấp Stratum 1; Stratum 2 : Là các máy tính gửi các yêu cầu NTP đến cho server Stratum ....

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