ntptrace(1) on Linux
The text a505408f4efd, as Debian 10 (Buster) shipped it.
Trace peers of an NTP server
Flags it lists
-
-! -
--help -
--host -
--max-hosts -
--more-help -
--numeric -
--version -
-? -
-m -
-n -
-r -
-v