1. run
# yum install telnet telnet-server -y
2. modify config
# vim /etc/xinetd.d/telnet
Set disable = no
# default: on
# description: The telnet server serves telnet sessions; it uses \
# unencrypted username/password pairs for authentication.
service telnet
{
flags = REUSE
socket_type = stream
wait = no
user = root
server = /usr/sbin/in.telnetd
log_on_failure += USERID
disable = no
}
3. start and auto run service
# service xinetd start
# chkconfig telnet on
# chkconfig xinetd on
