his protocol is a relaxed version of FTP. Typically, users can transfer any file (even system files, such as NT's Registry and UNIX's equivalent, /etc/passwd) without a password. Unless you need TFTP, we strongly recommend that you remove or disable the tftpd file. In UNIX, you need to comment out the entry from the /inetd.conf file in the /etc directory. In NT, you need to check whether anyone has installed third-party software that includes a TFTP service. (NT ships with an FTP service, but not a TFTP service.) If your network has a TFTP service, disable it.