MaD dUCK wrote:
also sprach Rick Francis (on Wed, 17 Jan 2001 06:33:51PM -0600):
had this same error message...resolved by having to re-add the udp 123 port allowance in the routers acl. ntp requires both tcp and udp on port 123.
i had udp only in the first place so now i added tcp for 123 as well, but that does not solve the problem.
NTP uses udp port 123 as standard - AFAIK it doesn't use TCP 123 at all (but I may be wrong).
check out the debug output:
root@fishbowl:/home/madduck # ntpdate -d albatross 19 Jan 00:46:58 ntpdate[12420]: ntpdate 4.0.99f Sat Jul 29 13:00:15 GMT 2000 (1) transmit(192.168.14.1) receive(192.168.14.1) transmit(192.168.14.1) server 192.168.14.1, port 123 stratum 16, precision -17, leap 11, trust 000
The above line is probably your problem - your server is reporting itself as being stratum 16. Your client computer may well be a lower stratum than the server, hence the client is unwilling to take the time from a more inaccurate time source... As I mentioned earlier, your restrict rules may be preventing your time server from accessing the time from the external servers, so you need to alter your restrict rules. Try adding the following rule for each external server (where <server ip> is replaced by the IP address of the server): restrict <server ip> nomodify This should get the server resynchronised and it's stratum number will fall to its proper value.
refid [0.0.0.0], delay 0.02615, dispersion 0.00000 transmitted 4, in filter 4 reference time: 00000000.00000000 Thu, Feb 7 2036 7:28:16.000 originate timestamp: be11fe8f.b33c8000 Fri, Jan 19 2001 0:45:19.700 transmit timestamp: be11fef2.81275ee9 Fri, Jan 19 2001 0:46:58.504 filter delay: 0.02628 0.02617 0.02615 0.02615 0.00000 0.00000 0.00000 0.00000 filter offset: -98.8046 -98.8047 -98.8047 -98.8047 0.000000 0.000000 0.000000 0.000000 delay 0.02615, dispersion 0.00000 offset -98.804723
19 Jan 00:46:58 ntpdate[12420]: no server suitable for synchronization found root@fishbowl:/home/madduck #
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