[ntp:questions] ntp-4.2.6p2 doesn't sync with Autokey

Joe Smithian joe.smithian at gmail.com
Sun Oct 17 03:43:38 UTC 2010


Hello,

I've compiled ntp-4.2.6p2 from the source code with crypto, openssl and
autokey enabled on CentOS 5.4 platform. I've configured my CentOS 5.4 client
to use Autokey but it doesn't sync as you can see below. Authentication is
OK but it rejects the trusted server. I've done the same configuration using
ntp-4.2.4p5 on an old RedHat 7.2 machine and it syncs to the same trusted
server. So I guess the problem might be in the new version of NTP. I'd
apprecite your comments and helps to fix this issue.


Peers:
==============================================================================
     remote           refid      st t when poll reach   delay   offset
jitter
==============================================================================
*LOCAL(0)        .LOCL.          10 l   46   64   37    0.000    0.000
0.000
 myNTPServer LOCAL(0)        11 u   37   64    7    0.755  -10394.   4.494
==============================================================================

Associations:
==============================================================================

ind assid status  conf reach auth condition  last_event cnt
===========================================================
  1 51788  963a   yes   yes  none  sys.peer    sys_peer  3
  2 51789  f024   yes   yes   ok     reject   reachable  2
==============================================================================

NTP Time:
==============================================================================
ntp_gettime() returns code 0 (OK)
  time d064e30b.ed25a000  Sat, Oct 16 2010 22:50:51.926, (.926355),
  maximum error 8102124 us, estimated error 0 us
ntp_adjtime() returns code 0 (OK)
  modes 0x0 (),
  offset 0.000 us, frequency 0.000 ppm, interval 1 s,
  maximum error 8102124 us, estimated error 0 us,
  status 0x1 (PLL),
  time constant 2, precision 1.000 us, tolerance 512 ppm,
==============================================================================

NTP Logs:

16 Oct 22:48:03 ntpd[17026]: [My NTP Server's IP address] e024 84 reachable

server setup in /etc/ntp.conf:

server myNTPServer autokey

The same problem exists when using symmetric key authentication or No
authetication:

ind assid status  conf reach auth condition  last_event cnt
===========================================================
2 15550  9024   yes   yes  none    reject   reachable  2

The difference between the client and server's date and time is less than
one minute so that's not causing a sync problem.


Thanks

Joe



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