hosts.deny & hosts.allow will control access by domain or IP
Make sure packages are up to date, FTP has a habit of showing exploits over
time
Read about chrooting..it may apply for you., not sure I like the
last option :-) giving users acc is like a compromise anyways :-)
*** RE
I need to determine if it is possible to secure inbound FTP on machines
running NIS. People who need to upload files, University faculty and
some users could have local accounts created so that they can upload
files. Is there any major security issues with this? Another idea would
be a machine