"synchronisation lost" errors for Solaris NTP server Post: 303042066

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Operating Systems Solaris "synchronisation lost" errors for Solaris NTP server Post 303042066 by solaris_1977 on Thursday 12th of December 2019 03:10:38 PM

12-12-2019

Registered User

It is NTP v3.

It is production NTP server, so being little more caution before changing anything.

In last part of message, it again reported same lost yesterday. Does it say that, that time is dragging behind by approx second and then NTP service reset it, to bring it back ? Or in absense of any diagnostic tool (like chrony), it is difficult to say this statement ?

Code:

ntp-serv10 # pkginfo -l | grep -i ntp
   PKGINST:  SUNWntpr
      NAME:  NTP, (Root)
      DESC:  Network Time Protocol v3, NTP Daemon and Utilities (xntpd)
   PKGINST:  SUNWntpu
      NAME:  NTP, (Usr)
      DESC:  Network Time Protocol v3, NTP Daemon and Utilities (xntpd)
ntp-serv10 # pkginfo -l SUNWntpr
   PKGINST:  SUNWntpr
      NAME:  NTP, (Root)
  CATEGORY:  system
      ARCH:  sparc
   VERSION:  11.9.0,REV=2002.04.06.15.27
   BASEDIR:  /
    VENDOR:  Sun Microsystems, Inc.
      DESC:  Network Time Protocol v3, NTP Daemon and Utilities (xntpd)
    PSTAMP:  crash20020406153653
  INSTDATE:  Sep 20 2006 17:11
   HOTLINE:  Please contact your local service provider
    STATUS:  completely installed
     FILES:       17 installed pathnames
                   8 shared pathnames
                   4 linked files
                  10 directories
                   1 executables
                   9 blocks used (approx)

ntp-serv10 # pkginfo -l SUNWntpu
   PKGINST:  SUNWntpu
      NAME:  NTP, (Usr)
  CATEGORY:  system
      ARCH:  sparc
   VERSION:  11.9.0,REV=2002.04.06.15.27
   BASEDIR:  /
    VENDOR:  Sun Microsystems, Inc.
      DESC:  Network Time Protocol v3, NTP Daemon and Utilities (xntpd)
    PSTAMP:  leo20040603152123
  INSTDATE:  Sep 20 2006 17:11
   HOTLINE:  Please contact your local service provider
    STATUS:  completely installed
     FILES:        9 installed pathnames
                   4 shared pathnames
                   4 directories
                   5 executables
                 938 blocks used (approx)

ntp-serv10 # cat /var/adm/messages | grep -i ntp
Dec 11 11:54:33 ntp-serv10 xntpd[15247]: [ID 854739 daemon.info] synchronized to 192.168.70.16, stratum=1
Dec 11 14:52:01 ntp-serv10 xntpd[15247]: [ID 774427 daemon.notice] time reset (step) 0.999041 s
Dec 11 14:52:01 ntp-serv10 xntpd[15247]: [ID 204180 daemon.info] synchronisation lost
Dec 11 14:56:54 ntp-serv10 xntpd[15247]: [ID 854739 daemon.info] synchronized to 172.28.34.204, stratum=1
Dec 11 14:56:53 ntp-serv10 xntpd[15247]: [ID 774427 daemon.notice] time reset (step) -1.003380 s
Dec 11 14:56:53 ntp-serv10 xntpd[15247]: [ID 204180 daemon.info] synchronisation lost
Dec 11 15:01:34 ntp-serv10 xntpd[15247]: [ID 854739 daemon.info] synchronized to 192.168.70.16, stratum=1

Last edited by Neo; 12-13-2019 at 08:54 AM.. Reason: Code Tags, not Quote Tags, Please See YT Video on this: https://youtu.be/4BuPvWJV__k

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ntptrace

ntptrace(1)						      General Commands Manual						       ntptrace(1)

NAME

       ntptrace - trace a chain of NTP servers back to the primary source

SYNOPSIS

       ntptrace [ -vdn ] [ -r retries  ] [ -t timeout  ] [ server  ]

DESCRIPTION

       ntptrace   determines  where  a	given  Network Time Protocol (NTP) server gets its time from, and follows the chain of NTP servers back to
       their master time source. If given no arguments, it starts with localhost . Here is an example of the output from ntptrace :

       % ntptrace localhost: stratum 4, offset 0.0019529, synch distance 0.144135 server2ozo.com: stratum  2,  offset  0.0124263,  synch  distance
       0.115784  usndh.edu:  stratum  1,  offset  0.0019298, synch distance 0.011993, refid On each line, the fields are (left to right): the host
       name, the host stratum, the time offset between that host and the local host (as measured by ntptrace ; this is why it is not  always  zero
       for " localhost "), the host synchronization distance, and (only for stratum-1 servers) the reference clock ID. All times are given in sec-
       onds. Note that the stratum is the server hop count to the primary source, while the synchronization distance is the estimated error  rela-
       tive to the primary source. These terms are precisely defined in RFC-1305.

OPTIONS

       -d      Turns on some debugging output.

       -n      Turns off the printing of host names; instead, host IP addresses are given. This may be useful if a nameserver is down.

       -r      retries Sets the number of retransmission attempts for each host (default = 5).

       -t      timeout Sets the retransmission timeout (in seconds) (default = 2).

       -v      Prints verbose information about the NTP servers.

BUGS

       This program makes no attempt to improve accuracy by doing multiple samples.

SEE ALSO

       More documentation is available in the package ntp-doc.

AUTHOR

       David L. Mills <mills@udel.edu>

ntp 4.1.1b-r5															       ntptrace(1)