On Dec 5, 2007 2:24 PM, Paul Smith <phhs80@xxxxxxxxx> wrote: > > > Yes, Craig, I did reboot the computer after having turned off ipv6, > > > but it did not solve the problem. It is rather strange that > > > '/sbin/service ntpd restart' works perfectly and that NTP cannot > > > synchronize with the server at booting. > > > > > This is not strange at all. When it tries to connect at boot, it can > > not make the connection. When the network is up, it can make the > > connection. I don't remember for sure, but I believe you were > > getting a DNS error. This could be because you couldn't reach the > > name server, or because you are running a local name server, and it > > isn't up when NTP starts. I would also expect to see this if you > > were using a wireless connection and network manager configured to > > make the connection when the user logs in. (User supplied wireless > > key instead of system supplied wireless key.) > > I understand your explanation. I do not use any wireless connection to > the Internet. Moreover, my Ethernet device is configure to be > activated when computer starts. What else should I look at? Again, the output of 'grep ntp tail /var/log/messages': /var/log/messages:Dec 5 14:00:27 localhost ntpd[2928]: time reset +0.234547 s /var/log/messages:Dec 5 14:09:42 localhost ntpd[2928]: synchronized to 193.136.134.3, stratum 2 /var/log/messages:Dec 5 14:26:01 localhost ntpd[2928]: ntpd exiting on signal 15 /var/log/messages:Dec 5 14:27:34 localhost ntpdate[1951]: can't find host ntp.ist.utl.pt /var/log/messages:Dec 5 14:27:34 localhost ntpdate[1951]: no servers can be used, exiting /var/log/messages:Dec 5 14:27:34 localhost ntpd[1954]: ntpd 4.2.4p2@xxxxxxxx Mon Sep 24 14:40:07 UTC 2007 (1) /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: precision = 1.000 usec /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: Listening on interface #1 wildcard, ::#123 Disabled /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: Listening on interface #2 lo, ::1#123 Enabled /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: Listening on interface #3 lo, 127.0.0.1#123 Enabled /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: Listening on interface #4 vmnet8, 192.168.139.1#123 Enabled /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: Listening on interface #5 vmnet1, 192.168.113.1#123 Enabled /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: kernel time sync status 0040 /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: frequency initialized 26.857 PPM from /var/lib/ntp/drift /var/log/messages:Dec 5 14:27:34 localhost ntpd[1955]: getaddrinfo: "ntp.ist.utl.pt" invalid host address, ignored /var/log/messages:Dec 5 14:27:35 localhost ntpd[1955]: Listening on interface #6 vmnet8, fe80::250:56ff:fec0:8#123 Enabled /var/log/messages:Dec 5 14:27:35 localhost ntpd[1955]: Listening on interface #7 vmnet1, fe80::250:56ff:fec0:1#123 Enabled /var/log/messages:Dec 5 14:28:36 localhost ntpd[1955]: Cannot find existing interface for address 193.136.134.3 /var/log/messages:Dec 5 14:28:36 localhost ntpd_initres[1959]: ntpd indicates no data available! /var/log/messages:Dec 5 14:29:36 localhost ntpd[1955]: Cannot find existing interface for address 193.136.134.3 /var/log/messages:Dec 5 14:29:36 localhost ntpd_initres[1959]: ntpd indicates no data available! /var/log/messages:Dec 5 14:30:36 localhost ntpd[1955]: Cannot find existing interface for address 193.136.134.3 /var/log/messages:Dec 5 14:30:36 localhost ntpd_initres[1959]: ntpd indicates no data available! Paul