The Network Time Protocol, is used to synchronize system clocks to precision time servers on the internet or locally connected devices such as a GPS.

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How to run ntp commands as non-root?

NTP commands such as ntpd and ntpdate are privileged and belongs to the root group. What is the best way to run these commands as non-root ? Linux capabilities, ownership, any method ? I have openSUSE ...
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votes
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242 views

NTP symmetric mode

I'm configuring NTP symmetric modes. Say I have Peer A (192.168.101.1) and Peer B(192.168.101.2) and configure their ntp.conf as follows: # Peer A peer 192.168.101.2 server 127.127.1.0 fudge ...
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316 views

NTP synchroinzation waiting for a while after booting

According to the recommendation on Arch Wiki, I set my hardware clock to UTC. And here is the result of timedatectl status on my machine when just booted: Local time: Tue 2013-07-02 15:38:03 ...
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75 views

How to set NTP tinker step (which unit)? and how to query?

One of the workaround for old CentOS/CentOS kernel (6.1-6.3) which may "Systems hang due to leap-second livelock." (quoting redhat), is to set tinker step in /etc/ntp.conf. Bug the documentation is ...
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75 views

script does not execute

I have rPi B+ running ArchLinux with kernel Linux comp001 3.18.6-2-ARCH #1 PREEMPT Sun Feb 8 09:43:43 MST 2015 armv6l GNU/Linux with Real Time Clock hardware RTC Pi. However, I would like to check if ...
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46 views

Linux Mint system clock is days ahead after an overnight laptop suspend

I'm a long-time Ubuntu user, who recently started trying out Linux Mint on a laptop. This is not a dual-boot setup, Mint is the only OS on the machine. When I suspend the laptop (i.e. close the ...
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54 views

How can I consistently tell OpenSUSE to refresh the clock / current time?

I use OpenSUSE in a VM and sometimes want to save the machine and get back to work later. I haven't had much success with hibernate or suspend, so I simply save the state of the machine and resume ...
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60 views

What causes ntpq refid CRYP when authentication is successful?

I have five servers that I'm configuring for production use based on a configuration we've recently tested. The servers are RHEL6 with NTP version 4.2.4p8@1.1612-o. Right now, though, I'm trying to ...
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55 views

NTP authentication failing with opcode 108

I'm trying to get NTP authentication working on a cluster of test servers and a couple clients. I've followed the instructions at ntp.org. To be honest, though, I'm not sure they are entirely clear ...
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917 views

NTP Problems - sntp: too many bad or lost packets

I need some help from you guys regarding NTP on Suse. I have a server, whose IP is 192.168.100.52, which is based on Suse Linux and here is my NTP conf file: server 192.168.100.11 iburst restrict ...
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Do I need to stop NTP service for client or only the server for leap second bug in linux

I have a server with suse 11 sp1 which are connected to NTP server that is also of same version. How can prevent leap second bug from effecting the servers? Can stoping the NTP service prevent effects ...
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54 views

NTP setup on a Java application Linux server

In a farm of time sensitive Java application Linux servers, how should one configure NTP in the ntp.conf file? Would it be okay to point the server to four stratum 3 NTP servers (switches) that are ...
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148 views

NTP compilation failed - without ssl

I am trying to cross compile NTP ver 4.2.8 without SSL support. I gave --without-crypto while configuring, but still it was throwing following error: ../libntp/libntp.a(ntp_crypto_rnd.o): In function ...