no server suitable for synchronization found In new HP-UX server

[Jorge Olmos]

Hi Gurus

I did a new installation (HP-UX) and when i try to activate NTP server, the response is "no server suitable for synchronization found"

I did the configuration manually using the following procedure

*.- /sbin/init.d/xntpd stop
*.- Edit the /etc/rc.config.d/netdaemons file

export NTPDATE_SERVER="172.16.50.41 172.16.50.42"
export XNTPD=1
export XNTPD_ARGS=

*.- Edit the /etc/ntp.conf file
Add the following lines
server 172.16.50.41 prefer
server 172.16.50.42

*.-/sbin/init.d/xntpd start
after that i saw the message "no server suitable for synchronization found"

i did the following command
------------------------------------------
cg4:/usr/sbin #/usr/sbin/ntpdate -d 172.16.50.41
transmit(172.16.50.41)
transmit(172.16.50.41)
transmit(172.16.50.41)
transmit(172.16.50.41)
transmit(172.16.50.41)
server 172.16.50.41, port 123
stratum 0, precision 0, leap 00, trust 000
refid [0.0.0.0], delay 0.00000, dispersion 64.00000
transmitted 4, in filter 4
reference time: 00000000.00000000 Thu, Feb 7 2036 3:28:16.000
originate timestamp: 00000000.00000000 Thu, Feb 7 2036 3:28:16.000
transmit timestamp: ce74f4c6.73354000 Mon, Oct 5 2009 18:42:14.450
filter delay: 0.00000 0.00000 0.00000 0.00000
0.00000 0.00000 0.00000 0.00000
filter offset: 0.000000 0.000000 0.000000 0.000000
0.000000 0.000000 0.000000 0.000000
delay 0.00000, dispersion 64.00000
offset 0.000000

5 Oct 18:42:15 ntpdate[23860]: no server suitable for synchronization found
------------------------------------------

cg4:/root #ntpq -p
remote refid st t when poll reach delay offset disp
==============================================================================
172.16.50.41 0.0.0.0 16 - - 64 0 0.00 0.000 16000.0
172.16.50.42 0.0.0.0 16 - - 64 0 0.00 0.000 16000.0

PLease i need integrate ASAP this server with NTP server.

Any help will be appreciate

[Bill Hassell · Accepted solution]

Yopu have done everything correctly -- it's not an HP-UX problems. Neither of those IP addresses is working as an NTP server. The reasons could be:

- The IP addresses are unreachable (not on same network and no route is available). Use traceroute 172.16.50.41 and traceroute 172.16.50.42 -- if traceroute fails, contact your network administrator.

- The server will not allow your system's IP address to obtain NTP information. Contact the NTP server administrator to allow your IP address to poll the server.

- Someone gave you the wrong IP addresses for the NTP servers.

- Port 123 is blocked between your HP-UX server and the NTP servers. Contact your network administrator.

[rick jones]

You should also add at least a third time source to allow NTP to have some hope of detecting bad time sources.

[Jorge Olmos]

Our Customer ... told me .... BOTH NTP SERVER ARE DOWN .... PLOP ... Thanks for your support. And please close this case