When installing the MXONE, part of the setup requires testing the NTP server. This is a great way to ensure that the customer's site is truly prepared for all prerequisites. However, it can make advanced prep of systems - like SBN - really difficult. Here is an easy way to set your own Linux machine as an NTP server:
Edit /etc/chrony.conf. Below I have highlighted the entries that matter. Customise the allowed IPs to suit your purpose.
Next, remember to allow the NTP port (123 UDP) on your machine's firewall. On openSUSE using YaST:
References:
https://www.ibm.com/docs/en/db2/11.5?topic=suntp-setting-up-chrony-as-network-time-protocol-server-client-by-using-chronyd-linux
