rxdebug(1) on Linux
The text e813cf99ac61, as Debian 8 (Jessie) shipped it.
Provides debugging trace of Rx activity
Flags it lists
-
-allconnections -
-help -
-noconns -
-nodally -
-onlyauth -
-onlyclient -
-onlyhost -
-onlyport -
-onlyserver -
-peers -
-rxstats -
-version