# more /etc/redhat-release
Red Hat Enterprise Linux Server release 6.5 (Santiago)
Using the SSH protocol for remote maintenance, disable the Telnet
vi /etc/xinetd.d/telnet
disable = NO
to restart xinetd process
Service xinetd restart
/etc/init.d/xinetd reload
the kill -HUP (xinetd process ID)
or
chkconfig telnet off