Hi all,
I am trying to get ntp running on a couple of Fedora Core 3 machines. It seems that ntpd is running, however when I stop the ntpd service and try to run ntpdate, it does nothing.
I have configured ntp on multiple Fedora Core 3 systems, but cannot get it to run correctly on two of them. NTP was installed when the system was installed and I have even uninstalled and reinstalled the rpm with the same result.
Has anybody had the same problem or have any ideas?
On Tue, 30 Nov 2004 13:16:52 -0600, Nathaniel Hall halln@otc.edu wrote:
I am trying to get ntp running on a couple of Fedora Core 3 machines. It seems that ntpd is running, however when I stop the ntpd service and try to run ntpdate, it does nothing.
I have configured ntp on multiple Fedora Core 3 systems, but cannot get it to run correctly on two of them. NTP was installed when the system was installed and I have even uninstalled and reinstalled the rpm with the same result.
Has anybody had the same problem or have any ideas?
What commands are you executing?
What does your /etc/ntp.conf config file look like? Note that just adding servers lines to the default config file doesn't work, you also need to loosen the security to let that site send you time updates.
and also firewall config, though if 'ntpdate pool.ntp.org' works, then ntpd should (though you can only run one or the other) There is a flag that'll let you bind to a different port and run ntpdate even if ntpd is running, though.
- Kevin
I am executing ntpdate /timeserver/.
Here is my ntpq -p:
ntpq: read: Connection refused
Like I said, I have ntp running correctly on several Fedora Cor 3 servers, as well as RHAS3 servers without problems. I have double checked our firewalls and do not see a problem. The firewall on the local box is disabled so that shouldn't be a problem. I did ask the guy who actually installed the system if he enabled SELinux and he did. The only thing that still throws me off is that we have other systems with SELinux enabled that didn't give us any problems.
Nathaniel Hall, GSEC Intrusion Detection and Firewall Technician Ozarks Technical Community College -- Office of Computer Networking
halln@otc.edu 417-447-7535
Kevin Wang wrote:
On Tue, 30 Nov 2004 13:16:52 -0600, Nathaniel Hall halln@otc.edu wrote:
I am trying to get ntp running on a couple of Fedora Core 3 machines. It seems that ntpd is running, however when I stop the ntpd service and try to run ntpdate, it does nothing.
I have configured ntp on multiple Fedora Core 3 systems, but cannot get it to run correctly on two of them. NTP was installed when the system was installed and I have even uninstalled and reinstalled the rpm with the same result.
Has anybody had the same problem or have any ideas?
What commands are you executing?
What does your /etc/ntp.conf config file look like? Note that just adding servers lines to the default config file doesn't work, you also need to loosen the security to let that site send you time updates.
and also firewall config, though if 'ntpdate pool.ntp.org' works, then ntpd should (though you can only run one or the other) There is a flag that'll let you bind to a different port and run ntpdate even if ntpd is running, though.
- Kevin
On Tue, 30 Nov 2004 13:35:30 -0600, Nathaniel Hall halln@otc.edu wrote:
I am executing ntpdate timeserver.
Here is my ntpq -p:
ntpq: read: Connection refusedLike I said, I have ntp running correctly on several Fedora Cor 3 servers, as well as RHAS3 servers without problems. I have double checked our firewalls and do not see a problem. The firewall on the local box is disabled so that shouldn't be a problem. I did ask the guy who actually installed the system if he enabled SELinux and he did. The only thing that still throws me off is that we have other systems with SELinux enabled that didn't give us any problems.
ntpq tries to talk to the ntpd running on your machine, so it likely isn't running.
but again, please post your ntp.conf. that will help immensely.
and the output of "ntpdate pool.ntp.org" would help too.
- Kevin
Here is the configuration of my ntp.conf (comments removed)
server /Our internal time server/ server ntp-cup.external.hp.com server time.nist.gov server 127.127.1.0 fudge 127.127.1.0 stratum 10
restrict 127.0.0.1 restrict 0.0.0.0 mask 255.255.255.255 nomodify notrap noquery notrust
driftfile /etc/ntp/drift multicastclient # listen on default 224.0.1.1 broadcastdelay 0.008
authenticate no
ntpdate seems to have started working now, however, ntpq -p does not. After syncing with the time servers using ntpdate, I start the service and run ntpq -p and get this response:
remote refid st t when poll reach delay offset jitter ============================================================================== emh1.otc.edu .RSTR. 16 u - 64 0 0.000 0.000 4000.00 ntp-cup.externa .RSTR. 16 u - 64 0 0.000 0.000 4000.00 time.nist.gov .RSTR. 16 u - 64 0 0.000 0.000 4000.00 LOCAL(0) LOCAL(0) 10 l 62 64 7 0.000 0.000 0.004
The ntpdates synced without a problem. I have other servers using the same ntp.conf file without a problem. Any ideas?
Nathaniel Hall, GSEC Intrusion Detection and Firewall Technician Ozarks Technical Community College -- Office of Computer Networking
halln@otc.edu 417-447-7535
Kevin Wang wrote:
On Tue, 30 Nov 2004 13:35:30 -0600, Nathaniel Hall halln@otc.edu wrote:
I am executing ntpdate timeserver.
Here is my ntpq -p:
ntpq: read: Connection refusedLike I said, I have ntp running correctly on several Fedora Cor 3 servers, as well as RHAS3 servers without problems. I have double checked our firewalls and do not see a problem. The firewall on the local box is disabled so that shouldn't be a problem. I did ask the guy who actually installed the system if he enabled SELinux and he did. The only thing that still throws me off is that we have other systems with SELinux enabled that didn't give us any problems.
ntpq tries to talk to the ntpd running on your machine, so it likely isn't running.
but again, please post your ntp.conf. that will help immensely.
and the output of "ntpdate pool.ntp.org" would help too.
- Kevin
The meaning of 'notrust' was radically changed, don't use it anymore.
Tom
Nathaniel,
Are you running ntpdate with a server argument?
i.e.-> ntpdate louie.udel.edu
also when you run: ntpq -p
what does the output show?
--Harry
Nathaniel Hall wrote:
Hi all,
I am trying to get ntp running on a couple of Fedora Core 3 machines. It seems that ntpd is running, however when I stop the ntpd service and try to run ntpdate, it does nothing.
I have configured ntp on multiple Fedora Core 3 systems, but cannot get it to run correctly on two of them. NTP was installed when the system was installed and I have even uninstalled and reinstalled the rpm with the same result.
Has anybody had the same problem or have any ideas?
On Tue, 2004-11-30 at 13:16 -0600, Nathaniel Hall wrote:
I have configured ntp on multiple Fedora Core 3 systems, but cannot get it to run correctly on two of them. NTP was installed when the system was installed and I have even uninstalled and reinstalled the rpm with the same result.
Please post your ntp.conf.
Has anybody had the same problem or have any ideas?
Are you using the "notrust" keyword? The meaning of it changed radically from 4.1 to 4.2 (which IMHO is asinine... never redefine a keyword or parameter which drastically changes functionality), so now in most settings you should not use this keyword.
What do the logs show when the ntpd service is restarted?
Cheers,
-
Harry Hoffman -
Kevin Wang -
Nathaniel Hall -
Rodolfo J. Paiz -
Thomas Zehetbauer