On Tue, 22 Mar 2005, Jonathan Hutchins wrote:
On Tue, March 22, 2005 4:02 pm, Gerald Combs said:
Jonathan Hutchins wrote:
Ntp doesn't guarantee correct time, it's just another way to screw it up.
It _does_ guarantee that you have the same time as a server or a set of peers, within a given tolerance. This is helpful if you want to correlate log data on different hosts, or run "make" in an NFS-mounted directory.
That's if/when it's configured and working correctly. Then it'll even provide the correct date for your email timestamps. That's not necessarily a given though.
I had a system that, because I was relying on ntp, and because ntp was confirured correctly when I checked after setting it up, was six hours off after subsequent reboots. Gentoo had, in the absence of useful data from the DHCP server, overwritten the valid ntp config file with default garbage. (This is the default behavior for gentoo.) Caveat admin.
*cough* Works well on RedHat systems since like ... 6.0 *cough*
:-)
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