dnswalk(1) on Linux
The text 5af1fade12a0, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster) shipped it. The page shows this text now.
A DNS database debugger
Flags it lists
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-F -
-a -
-d -
-i -
-l -
-m -
-r