I installed Virtualmin 4.10.gpl GPL and check the configuration.
I received message:
Virtualmin is configured to setup DNS zones, but this system is not setup to use itself as a DNS server. Either add 127.0.0.1 to the list of DNS servers, or turn off the BIND feature on the module config page.
… your system is not ready for use by Virtualmin.
I select the link, list of DNS servers > I add 127.0.0.1 to the list of DNS servers > Save > Apply Configuration > System Information > Re-check and refresh configuration > and same error.
Any suggestions please?