installing telnet deamon
$ sudo apt-get install xinetd telnetd
make a “telnet” file in /etc/xinet.d/
:::: vim /etc/xinet.d/telnet
# default: off
service telnet
{
disable = no
flags = REUSE
socket_type = stream
wait = no
user = root
server = /usr/sbin/in.telnetd
log_on_failure += USERID
}
then restart the process
$ sudo /etc/init.d/xinetd restart