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Questions tagged [ntp]

NTP stands for Network Time Protocol, and it is an Internet protocol used to synchronize the clocks of computers to some time reference.

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Does Amazon manage time synchronization on ECS/Fargate containers?

I'm trying to use NTP to synchronize local time in ECS containers using the ntpdate command, but it gives me this error: ntpdate[770]: Can't adjust the time of day: Operation not permitted Investigating the issue, I realized that local time is…
Aramis Rodríguez Blanco
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What happens when ntp stops sync with remote ntp server and LOCAL (127.0.0.1) is also not defined in the ntp.conf

I wish to understand the scenario in which we have defined only remote servers in the /etc/ntp.conf file and we have not set the LOCAL ntp server (127.0.0.1) options. What happens in case of a network partition, where the server looses its…
Mustafa Alam
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Which ntp command replaces ntpdate -q?

On older systems, where ntpdate is still available, I'm able to query an NTP-Server without setting ntpdate -q pool.ntp.org and got e.g.: server 213.239.239.164, stratum 2, offset -0.001191, delay 0.06012 server 185.220.101.76, stratum 3, offset…
Achim
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How to change time source from a LOCAL CMOS CLOCK to a Cisco router configured as a NTP master

I have a test network that I'm using for my CCNA. I am using my Cisco 2811 router as an NTP master. I think I have it configured correctly. Is there a Cisco command to see what NTP time source I am connected to? When I run, w32TM /querry /source…
Acenyc
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Sync server time

I have 3 servers and each one of them is showing different time. How do I correctly set the SAME time across all severs? I noticed that ntpd server is stopped. So I started it. service ntpd start Is it the correct way to sync time? (Indian Standard…
shantanuo
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Ceph Clock Skew

I want to know where I can configure the limit of skew time for my ceph monitors. Also,how does CEPH throw this clock skew error? Specifically from which file and where can I find the file so that I can edit? I am already running NTP and…
Zeeshan Haris
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all my ntpd servers marked falsetick, why?

I have a set of four ntpd servers that sync time from the same stratum 1 server. But on some clients they all are marked falsetick, why? remote refid st t when poll reach delay offset …
poison1456
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Unable to ntp query host that I have connection to

So I have an ethernet point to point connection from my PC to a device running NTP on UDP port 123. This is what nmap shows: root@kali:~# nmap -sU mydevice PORT STATE SERVICE 123/udp open|filtered ntp Now when i start ntp and check its…
Sam
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NTP time synchronization

I have two Linux computers connected to each other via Ethernet crossover cable. No Internet Connection! How can I make the first computer always sync to the time of the second computer? I tried playing with NTP, but could not figure out how to make…
dani
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linux + understanding Chrony logs and conclusions from logs

we are using chrony service in order to sync linux clients to NTP server in our cluster since we get diff time between machines we enable the chrony logs to understand the reasons that machines in the cluster are with diff time example of chrony…
shalom
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NTP reach property equivalent for timedatectl command

The ntpq -p command returns information which includes the reach and when properties as shown in the example: remote refid st t when poll reach delay offset …
Tony.H
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Why is the /var/log/chrony folder empty?

we are using chrony in order to sync our servers to ntp servers ( redhat 7.2 ) we configured the logdir /var/log/chrony in chrony.conf and restart the chrony ( systemctl restart chronyd ) , but still folder - /var/log/chrony is empty without…
shalom
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NTP NIC binding

I'm wondering whether it's possible to setup NTP on a Windows Server running 2012 R2. The catch is that I only want one of the two NICs on the server to be used for NTP. Here's a little more information on why I've been asked to set it up this way.…
Luke Welden
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There's no ntpd in centos 7, how to sync time automatically and manually with chrony?

Seems there's no ntpd in centos7, how can I sync time in centos7? I found out that chrony should be used in centos7, what is manual way to update time using chrony? I assume chronyd is something equivalent to ntpd? and what's the command equivalent…
gacopu
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Red Hat Linux NTP Inconsistent Values

Recently I am experiencing NTP high delay and offset values on my server. $ ntpq -p remote refid st t when poll reach delay offset …
aschkant
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