[PLUG] ntp isn't keeping the clock accurate
Paul Heinlein
heinlein at attbi.com
Fri Apr 11 11:01:02 UTC 2003
On 11 Apr 2003, Mike De La Mater wrote:
> [root at rhws sbin]# ./ntpdc
> ntpdc> peers
> remote local st poll reach delay offset disp
> =======================================================================
> =time.nist.gov 5.0.0.0 16 64 0 0.00000 0.000000 0.00000
> =clock.via.net 5.0.0.0 16 64 0 0.00000 0.000000 0.00000
The '5.0.0.0' local address is the key: ntpd is unable to reach the
remote hosts.
For troubleshooting, make sure
* you can ping those hosts
* your client has permission to sync with them:
ntpd -q time.nist.gov
ntpd -q clock.via.net
* you don't have a packet filter rule that's blocking ntp traffic
> Note that /usr/sbin does not appear to be in my path, so I have to
> enter the ./ to make it run. I'm logged into X as a user, but I su'd
> to root for this check.
Typically, you don't need to be root to run ntpdc.
--Paul Heinlein <heinlein at attbi.com>
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