I use "/tool dns-update" to keep reachable from the net and use a script to check for WAN address changes. And it works well (RouterOS 4.13):Only drawback: "/tool dns-update" requires a "name=", which may not be empty or missing. As a result, I can easily update names like "gw.mydomain.ch", but I cannot find a way update the root of the zone "mydomain.ch".

Is there a way to achieve updates on the root of the zone?

Christoph

You could just CNAME mydomain.ch to gw.mydomain.ch.

You cant make the root record a CNAME, its against RFC.

Can you use name="@" ?

You cant make the root record a CNAME, its against RFC.

Agreed: CNAME is in conflict with other information. Since NS records reside there, I cannot add a CNAME.

Can you use name="@" ?

I tested this, but get the message "refused", apparently from the DNS-server.
I guess there is no way around adding support for such updates in the "tool dns-update" interface.

Christoph