2256
Comment: protect cron command with brackets
|
2274
added links to it translation + minor fixes
|
Deletions are marked like this. | Additions are marked like this. |
Line 2: | Line 2: |
||<tablewidth="100%" tablestyle=""style="border: 0px hidden ;">~-[[DebianWiki/EditorGuide#translation|Translation(s)]]: none-~ ||<style="border: 0px hidden ; text-align: right;"> (!) [[/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]] || |
Line 24: | Line 24: |
* [Troubleshooting] If you run '''ntpq -p''' and you get | * If you run '''ntpq -p''' and you get |
Line 54: | Line 54: |
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: | 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: |
Line 58: | Line 58: |
57 5 * * * root /usr/sbin/ntpdate ntp.blueyonder.co.uk | 57 5 * * * root /usr/sbin/ntpdate-debian > /dev/null |
Line 62: | Line 62: |
uk.pool.ntp.org (This points to a random United Kingdom based time server) | {{{uk.pool.ntp.org}}} - This points to a random United Kingdom based time server |
- 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