ftpbnc 0.3 is experimental build with TLS support. Testing feedback will be
appreciated.

ftpbnc 0.21 is most  stable  at  the  moment,  and  supports username/password
authentication. Problems may occur with connections being stuck. In such case,
decrease DATA_SIZE in ftpbnc.c to 128 and rebuild.

ftpbnc 0.1 is rather stable, but lacks username/password authentication.