Description of Problem: I'm trying to set up a tftp server on Redhat 7.1. I have the tftpd package installed. My /etc/xinetd.d/tftp is as follows: # default: off # description: The tftp server serves files using the trivial file transfer \ # protocol. The tftp protocol is often used to boot diskless \ # workstations, download configuration files to network-aware printers, \ # and to start the installation process for some operating systems. service tftp { disable = no socket_type = dgram wait = yes user = nobody log_on_success += USERID log_on_failure += USERID server = /usr/sbin/in.tftpd server_args = /tftpboot } However, when I start, restart, or reload xinetd I get the message: xinetd[506]: socket creation failed (Socket type not supported (errno = 94)). service = tftp (in /var/log/messages) If I do an strace on xinetd I see socket(PF_INET, SOCK_DGRAM, IPPROTO_TCP) = -1 ESOCKTNOSUPPORT (Socket type not supported) SOCK_DGRAM and IPPROTO_TCP definitely do not go together. It looks like in the sources... the third parameter to socket() is always zero. That's probably the problem.
adding 'protocol=udp' to /etc/xinetd.d/tftp made the problem go away but it would be nice if xinetd chose a reasonable default protocol when one isn't specified.
tftp-server-0.17-14 (and probably earlier ones, but that's one I verified) have protocol=udp in its xinetd.