[CentOS] tftpd server S not responding

Reading back through prior emails. . . TFTP client requests packets *are*
making it to the TFTP server. So it seems like something on the TFTP server
itself.

Like previously mentioned server side
firewall/iptables/tcp-wrappers/selinux are all possible culprits.

Hmmm just thought of something else, what are the file permissions of the
file you are requesting? Try `chmod a+r filename`?