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| ||<tablestyle="width: 100%;" style="border: 0px hidden">~-[:DebianWiki/EditorGuide#translation:Translation(s)]: [:fr/NTP:Français]-~||<style="text-align: right;border: 0px hidden"> (!) [:/Discussion:Discussion]|| | ||<tablewidth="100%" tablestyle=""style="border: 0px hidden ;">~-[[DebianWiki/EditorGuide#translation|Translation(s)]]: English - [[it/NTP|Italiano]] -~ ||<style="border: 0px hidden ; text-align: right;"> (!) [[/Discussion]] || |
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| Describe in one or two lines what your page is about. | Network Time Protocol, This will keep you system date with exact match to actual date. |
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| ## If your page gets really long, uncomment this Table of Contents [[TableOfContents(2)]] #language en ||<tablestyle="width: 100%;" style="border: 0px hidden">~-[:DebianWiki/EditorGuide#translation:Translation(s)]: none-~||<style="text-align: right;border: 0px hidden"> (!) [:/Discussion:Discussion]|| ---- Network Time Protocol, This will keep you system date with exact match to actual date. ## If your page gets really long, uncomment this Table of Contents [[TableOfContents(2)]] *Type date to see current date and time |
## If your page gets really long, uncomment this Table of Contents ## [[TableOfContents(2)]] = Install and Configure = * Type date to see current date and time |
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| *Install NTP | * Install NTP |
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| apt-get install ntpdate | aptitude install ntp-simple aptitude install ntpdate |
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| *Done. *Type '''date''' again to see if the time changed. *[Optional]If you would like to add a server that is closer to you and you know its address. You could type: |
* Done. * Type '''ntpq -p''' to see servers you are syncing with. * Type '''date''' again to see if the time changed. You time should be synced in a next minute. * Done. == Troubleshooting == * If you run '''ntpq -p''' and you get {{{ No association ID's returned }}} *Run {{{ dpkg-reconfigure ntp }}} *And then again: {{{ ntpq -p remote refid st t when poll reach delay offset jitter ============================================================================== ntp.pbx.org xx.xxx.xxx.xxx 2 u - 64 1 33.763 1799619 1.054 xray.metadom.co xx.xxx.xxx.xxx 2 u 1 64 1 40.367 1799619 0.001 hydrogen.cert.u xx.xxx.xxx.xxx 2 u - 64 1 64.740 1799619 0.001 mirror .INIT. 16 u - 64 0 0.000 0.000 0.001 }}} == Add your time server == * [Optional] If you would like to add a server that is closer to you and you know its address. You could type: |
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| === Using The Cron === To configure the system to synchronize the clock with an Internet Time Server every morning, add the following entry to the {{{/etc/crontab}}} configuration file: {{{ #m h dom mon dow user command 57 5 * * * root /usr/sbin/ntpdate-debian > /dev/null }}} === Public Internet Time Servers === {{{uk.pool.ntp.org}}} - This points to a random United Kingdom based time server |
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| CategoryNetwork | . CategoryNetwork |
- Network Time Protocol, This will keep you system date with exact match to actual date.
Install and Configure
- Type date to see current date and time
date
- Install NTP
aptitude install ntp-simple aptitude install ntpdate
- Done.
Type ntpq -p to see servers you are syncing with.
Type date again to see if the time changed. You time should be synced in a next minute.
- Done.
Troubleshooting
If you run ntpq -p and you get
No association ID's returned
- Run
dpkg-reconfigure ntp
- And then again:
ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
ntp.pbx.org xx.xxx.xxx.xxx 2 u - 64 1 33.763 1799619 1.054
xray.metadom.co xx.xxx.xxx.xxx 2 u 1 64 1 40.367 1799619 0.001
hydrogen.cert.u xx.xxx.xxx.xxx 2 u - 64 1 64.740 1799619 0.001
mirror .INIT. 16 u - 64 0 0.000 0.000 0.001
Add your time server
- [Optional] If you would like to add a server that is closer to you and you know its address. You could type:
/etc/init.d/ntp-server stop ntpdate clock.fmt.he.net ntpdate ntp1.tummy.com /etc/init.d/ntp-server start
Using The Cron
To configure the system to synchronize the clock with an Internet Time Server every morning, add the following entry to the /etc/crontab configuration file:
#m h dom mon dow user command 57 5 * * * root /usr/sbin/ntpdate-debian > /dev/null
Public Internet Time Servers
uk.pool.ntp.org - This points to a random United Kingdom based time server