ldns-signzone(1) on Linux
The text e518fbdb3a1e, as Debian 13 (Trixie) shipped it.
sign a zonefile with DNSSEC data
Flags it lists
-
-A -
-E -
-K -
-U -
-Z -
-a -
-b -
-d -
-e -
-f -
-i -
-k -
-n -
-o -
-p -
-s -
-t -
-u -
-v -
-z