At what time intervals does ntpd update the time?












0














I'm running the latest ntpd.



When I start ntpd my system time synchronizes with ntp server's ntp. After synchronizing I changed my system time manually using date command date -s '1997-02-22 12:00:00'



My system time got changed as per the date command.



NTPD is still running, I want to know at what time interval my system time will sync with the internet via ntp.






ntp







share|improve this question





























    0














    I'm running the latest ntpd.



    When I start ntpd my system time synchronizes with ntp server's ntp. After synchronizing I changed my system time manually using date command date -s '1997-02-22 12:00:00'



    My system time got changed as per the date command.



    NTPD is still running, I want to know at what time interval my system time will sync with the internet via ntp.






    ntp







    share|improve this question



























      0












      0








      0







      I'm running the latest ntpd.



      When I start ntpd my system time synchronizes with ntp server's ntp. After synchronizing I changed my system time manually using date command date -s '1997-02-22 12:00:00'



      My system time got changed as per the date command.



      NTPD is still running, I want to know at what time interval my system time will sync with the internet via ntp.






      ntp







      share|improve this question















      I'm running the latest ntpd.



      When I start ntpd my system time synchronizes with ntp server's ntp. After synchronizing I changed my system time manually using date command date -s '1997-02-22 12:00:00'



      My system time got changed as per the date command.



      NTPD is still running, I want to know at what time interval my system time will sync with the internet via ntp.






      ntp




      ntp






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jul 13 '16 at 9:59









      Zanna

      50.1k13131240




      50.1k13131240










      asked Jul 13 '16 at 6:32









      Sharath Manchala

      2415




      2415






















          2 Answers
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          active

          oldest

          votes


















          1














          Generally we can also call it as polling interval and minimum time is 64 sec and maximum time 1024 sec , but you can still change it as you want by doing changes at /etc/ntp.conf.




          minpoll minpoll



          maxpoll maxpoll



          These options specify the minimum and
          maximum poll intervals for NTP messages, in seconds as a power of two.
          The maximum poll interval defaults to 10 (1,024 s), but can be
          increased by the maxpoll option to an upper limit of 17 (36.4 h). The
          minimum poll interval defaults to 6 (64 s), but can be decreased by
          the minpoll option to a lower limit of 3 (8 s). These option are valid
          only with the server and peer commands.







          share|improve this answer





















          • thanks Raja. I'm seeing one more issue.My ntpd is crashing with the error message "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled ". Do you have any idea regarding this
            – Sharath Manchala
            Jul 13 '16 at 7:12






          • 1




            @SharathManchala forums.freebsd.org/threads/53885
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • @SharathManchala novell.com/coolsolutions/feature/15345.html
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • my understanding was if we dont configure minpoll and maxpoll then it sets default values as 64s and 1024s(17 mins). Is it dam sure that within this interval time will get sync from server.
            – Sharath Manchala
            Jul 13 '16 at 9:44





















          1














          What is is saying is "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled " because of event that happened ntpd stopped. The event is you changing the time of the clock. NTPD is angry that you changed the time of the clock too far away form the time that it knows, and NTPD wants you to make sure you get the time within within 1000s or 16 minutes. NTPD does not like having to jump too far. For example if you computer did not have a internet connection for a long time and then you reconnected it, it would not jump to the correct time right away, but slowly get the time closer until it was correct.






          share|improve this answer

















          • 1




            This RH Q&A discusses this a little serverfault.com/q/847998
            – jdv
            Dec 13 '18 at 19:07











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          2 Answers
          2






          active

          oldest

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          2 Answers
          2






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          Generally we can also call it as polling interval and minimum time is 64 sec and maximum time 1024 sec , but you can still change it as you want by doing changes at /etc/ntp.conf.




          minpoll minpoll



          maxpoll maxpoll



          These options specify the minimum and
          maximum poll intervals for NTP messages, in seconds as a power of two.
          The maximum poll interval defaults to 10 (1,024 s), but can be
          increased by the maxpoll option to an upper limit of 17 (36.4 h). The
          minimum poll interval defaults to 6 (64 s), but can be decreased by
          the minpoll option to a lower limit of 3 (8 s). These option are valid
          only with the server and peer commands.







          share|improve this answer





















          • thanks Raja. I'm seeing one more issue.My ntpd is crashing with the error message "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled ". Do you have any idea regarding this
            – Sharath Manchala
            Jul 13 '16 at 7:12






          • 1




            @SharathManchala forums.freebsd.org/threads/53885
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • @SharathManchala novell.com/coolsolutions/feature/15345.html
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • my understanding was if we dont configure minpoll and maxpoll then it sets default values as 64s and 1024s(17 mins). Is it dam sure that within this interval time will get sync from server.
            – Sharath Manchala
            Jul 13 '16 at 9:44


















          1














          Generally we can also call it as polling interval and minimum time is 64 sec and maximum time 1024 sec , but you can still change it as you want by doing changes at /etc/ntp.conf.




          minpoll minpoll



          maxpoll maxpoll



          These options specify the minimum and
          maximum poll intervals for NTP messages, in seconds as a power of two.
          The maximum poll interval defaults to 10 (1,024 s), but can be
          increased by the maxpoll option to an upper limit of 17 (36.4 h). The
          minimum poll interval defaults to 6 (64 s), but can be decreased by
          the minpoll option to a lower limit of 3 (8 s). These option are valid
          only with the server and peer commands.







          share|improve this answer





















          • thanks Raja. I'm seeing one more issue.My ntpd is crashing with the error message "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled ". Do you have any idea regarding this
            – Sharath Manchala
            Jul 13 '16 at 7:12






          • 1




            @SharathManchala forums.freebsd.org/threads/53885
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • @SharathManchala novell.com/coolsolutions/feature/15345.html
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • my understanding was if we dont configure minpoll and maxpoll then it sets default values as 64s and 1024s(17 mins). Is it dam sure that within this interval time will get sync from server.
            – Sharath Manchala
            Jul 13 '16 at 9:44
















          1












          1








          1






          Generally we can also call it as polling interval and minimum time is 64 sec and maximum time 1024 sec , but you can still change it as you want by doing changes at /etc/ntp.conf.




          minpoll minpoll



          maxpoll maxpoll



          These options specify the minimum and
          maximum poll intervals for NTP messages, in seconds as a power of two.
          The maximum poll interval defaults to 10 (1,024 s), but can be
          increased by the maxpoll option to an upper limit of 17 (36.4 h). The
          minimum poll interval defaults to 6 (64 s), but can be decreased by
          the minpoll option to a lower limit of 3 (8 s). These option are valid
          only with the server and peer commands.







          share|improve this answer












          Generally we can also call it as polling interval and minimum time is 64 sec and maximum time 1024 sec , but you can still change it as you want by doing changes at /etc/ntp.conf.




          minpoll minpoll



          maxpoll maxpoll



          These options specify the minimum and
          maximum poll intervals for NTP messages, in seconds as a power of two.
          The maximum poll interval defaults to 10 (1,024 s), but can be
          increased by the maxpoll option to an upper limit of 17 (36.4 h). The
          minimum poll interval defaults to 6 (64 s), but can be decreased by
          the minpoll option to a lower limit of 3 (8 s). These option are valid
          only with the server and peer commands.








          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Jul 13 '16 at 6:58









          rɑːdʒɑ

          56.9k84216301




          56.9k84216301












          • thanks Raja. I'm seeing one more issue.My ntpd is crashing with the error message "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled ". Do you have any idea regarding this
            – Sharath Manchala
            Jul 13 '16 at 7:12






          • 1




            @SharathManchala forums.freebsd.org/threads/53885
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • @SharathManchala novell.com/coolsolutions/feature/15345.html
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • my understanding was if we dont configure minpoll and maxpoll then it sets default values as 64s and 1024s(17 mins). Is it dam sure that within this interval time will get sync from server.
            – Sharath Manchala
            Jul 13 '16 at 9:44




















          • thanks Raja. I'm seeing one more issue.My ntpd is crashing with the error message "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled ". Do you have any idea regarding this
            – Sharath Manchala
            Jul 13 '16 at 7:12






          • 1




            @SharathManchala forums.freebsd.org/threads/53885
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • @SharathManchala novell.com/coolsolutions/feature/15345.html
            – rɑːdʒɑ
            Jul 13 '16 at 7:15










          • my understanding was if we dont configure minpoll and maxpoll then it sets default values as 64s and 1024s(17 mins). Is it dam sure that within this interval time will get sync from server.
            – Sharath Manchala
            Jul 13 '16 at 9:44


















          thanks Raja. I'm seeing one more issue.My ntpd is crashing with the error message "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled ". Do you have any idea regarding this
          – Sharath Manchala
          Jul 13 '16 at 7:12




          thanks Raja. I'm seeing one more issue.My ntpd is crashing with the error message "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled ". Do you have any idea regarding this
          – Sharath Manchala
          Jul 13 '16 at 7:12




          1




          1




          @SharathManchala forums.freebsd.org/threads/53885
          – rɑːdʒɑ
          Jul 13 '16 at 7:15




          @SharathManchala forums.freebsd.org/threads/53885
          – rɑːdʒɑ
          Jul 13 '16 at 7:15












          @SharathManchala novell.com/coolsolutions/feature/15345.html
          – rɑːdʒɑ
          Jul 13 '16 at 7:15




          @SharathManchala novell.com/coolsolutions/feature/15345.html
          – rɑːdʒɑ
          Jul 13 '16 at 7:15












          my understanding was if we dont configure minpoll and maxpoll then it sets default values as 64s and 1024s(17 mins). Is it dam sure that within this interval time will get sync from server.
          – Sharath Manchala
          Jul 13 '16 at 9:44






          my understanding was if we dont configure minpoll and maxpoll then it sets default values as 64s and 1024s(17 mins). Is it dam sure that within this interval time will get sync from server.
          – Sharath Manchala
          Jul 13 '16 at 9:44















          1














          What is is saying is "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled " because of event that happened ntpd stopped. The event is you changing the time of the clock. NTPD is angry that you changed the time of the clock too far away form the time that it knows, and NTPD wants you to make sure you get the time within within 1000s or 16 minutes. NTPD does not like having to jump too far. For example if you computer did not have a internet connection for a long time and then you reconnected it, it would not jump to the correct time right away, but slowly get the time closer until it was correct.






          share|improve this answer

















          • 1




            This RH Q&A discusses this a little serverfault.com/q/847998
            – jdv
            Dec 13 '18 at 19:07
















          1














          What is is saying is "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled " because of event that happened ntpd stopped. The event is you changing the time of the clock. NTPD is angry that you changed the time of the clock too far away form the time that it knows, and NTPD wants you to make sure you get the time within within 1000s or 16 minutes. NTPD does not like having to jump too far. For example if you computer did not have a internet connection for a long time and then you reconnected it, it would not jump to the correct time right away, but slowly get the time closer until it was correct.






          share|improve this answer

















          • 1




            This RH Q&A discusses this a little serverfault.com/q/847998
            – jdv
            Dec 13 '18 at 19:07














          1












          1








          1






          What is is saying is "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled " because of event that happened ntpd stopped. The event is you changing the time of the clock. NTPD is angry that you changed the time of the clock too far away form the time that it knows, and NTPD wants you to make sure you get the time within within 1000s or 16 minutes. NTPD does not like having to jump too far. For example if you computer did not have a internet connection for a long time and then you reconnected it, it would not jump to the correct time right away, but slowly get the time closer until it was correct.






          share|improve this answer












          What is is saying is "event at 1020 0.0.0.0 0617 07 panic_stop +611777596 s; set clock manually within 1000 s. event at 1020 0.0.0.0 061d 0d kern kernel time sync disabled " because of event that happened ntpd stopped. The event is you changing the time of the clock. NTPD is angry that you changed the time of the clock too far away form the time that it knows, and NTPD wants you to make sure you get the time within within 1000s or 16 minutes. NTPD does not like having to jump too far. For example if you computer did not have a internet connection for a long time and then you reconnected it, it would not jump to the correct time right away, but slowly get the time closer until it was correct.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Dec 13 '18 at 18:48









          doanerock

          111




          111








          • 1




            This RH Q&A discusses this a little serverfault.com/q/847998
            – jdv
            Dec 13 '18 at 19:07














          • 1




            This RH Q&A discusses this a little serverfault.com/q/847998
            – jdv
            Dec 13 '18 at 19:07








          1




          1




          This RH Q&A discusses this a little serverfault.com/q/847998
          – jdv
          Dec 13 '18 at 19:07




          This RH Q&A discusses this a little serverfault.com/q/847998
          – jdv
          Dec 13 '18 at 19:07


















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