Attempts to add or remove an IP/Subnet from the banned list.
subnetstringREQUIREDcommandstringREQUIREDbantimenumberoptionalabsolutebooleanoptionalcurl --user myuser --data-binary '{"jsonrpc":"1.0","id":"1","method":"setban","params":["192.168.0.6","add",86400]}' -H 'content-type:text/plain;' http://127.0.0.1:8332/null