dropbear(8) on Linux
The text b804aadc9579, as Debian 8 (Jessie) shipped it.
lightweight SSH server
Flags it lists
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-E -
-F -
-I -
-K -
-P -
-R -
-V -
-W -
-a -
-b -
-g -
-i -
-j -
-k -
-m -
-p -
-r -
-s -
-w