Under high TFTP loads (approx 5-10 requests per second), the TFTP server starts to deny requests. /var/log/messages ----------------- Dec 29 05:51:31 breu tftpd[2168]: tftpd: trying to get file: zenith-clone-generic-1.cfg Dec 29 05:51:31 breu tftpd[2168]: tftpd: serving file from /tftpboot Dec 29 05:51:33 breu tftpd[2170]: tftpd: trying to get file: zenith-clone-generic-1.cfg Dec 29 05:51:33 breu tftpd[2170]: tftpd: serving file from /tftpboot Dec 29 05:51:33 breu tftpd[2170]: tftpd: read: Connection refused /etc/inetd.conf --------------- tftp dgram udp wait.40000 root /usr/sbin/in.tftpd in.tftpd
What tftp version ("rpm -q tftp")? If tftp-0.16, there is an attempt within the tftpd daemon to prevent DOS attacks by delaying 0.1 secs between attempts to service a request. This can be disabled if you desire in the source and recompiling. I'm hard pressed to imagine a circumstance in which >10 tftp requests/second is generally useful (read: I don't think that this should be disabled in the distributed tftp package.)