On 12/19/23 16:29, Carlos E. R. wrote:
You only need to tell another machine of the address of the first one, and the first one will instantly act as server.
No. I just tried. I set my ThinkPad to use my desktop as the server and tried the test. It failed. I then tried my firewall and it worked fine. The NTP client in 15.5 is not a server and hasn't been since before openSUSE, IIRC.
What I don't remember is if a machine on the LAN can broadcast a query for ntp servers.
It can be configured as a DHCP option. However, when it did provide a server, it could be configured to multicast NTP, without being requested.
Of course, the machine has to know that its time is accurate, and for this it needs to compare its own time with other machines. I think the minimum is three.
Yep. Either use 1 or at least 3. 2 can cause it to ignore both, if they disagree. I use 6 on pfSense. 3 are stratum 1 from the local Internet exchange and the other 3 are stratum 2 from government servers.
Where from can the daemon obtain external addresses of servers, I do not know. The dhcp server of the lan can publish them, I think.
Yep. I don't know of any other method, beyond manual configuration.