Hi secret52
If you are trying to do remote administration you are probably down to three choices:
1. Find individual programs that offer a web interface, either here or externally.
2. Use a remote desktop app. That will let you use command line, GUI, and web GUI apps.
3. Write a custom web interface, which is probably what FreeNAS did.
I have not tried the proftpd.tcz extension myself, but their website indicates it offers a web interface.