ss-nat(1) on Linux
The text 8e1fc6b6ea4c, as Debian 9 (Stretch) shipped it.
helper script to setup NAT rules for transparent proxy
Flags it lists
-
-L -
-S -
-U -
-a -
-b -
-e -
-f -
-h -
-i -
-l -
-o -
-s -
-u -
-w