On 12/17/23 21:36, Carlos E. R. wrote:

I'm running Wireshark on my computers. I can see the traffic to both IPv4 and IPv6 addresses of my server. I am also seeing it between my computer and some external server, so I don't think it's traffic between servers.

When David says "between servers" he means "between your server and outside servers". This is normal, it is how it works.

My server is not on openSUSE. It's on my pfSense firewall/router. So, my desktop and ThinkPad computers are just clients. All the NTP server traffic is between my desktop or ThinkPad and my server, along with some external server. My server is configured in the NTP settings, the outside one(s) isn't.

Does the openSUSE NTP client even provide a server anymore? It did back in the SUSE days and I ran my NTP server on it, when I had a Linux firewall.