How to Install Telnet Server on CentOS/RHEL 6/5

http://tecadmin.net/install-telnet-server-on-centos-redhat/

Install Telnet Server

Telnet server is available under default yum repositories. Execute following command to install it

# yum install telnet-server

Enable Telnet Service

Telnet is an xinetd based service, First edit telnet xinetd configuration file /etc/xinetd.d/telnetand set disable to no.

service telnet
{
        flags           = REUSE
        socket_type     = stream
        wait            = no
        user            = root
        server          = /usr/sbin/in.telnetd
        log_on_failure  += USERID
        disable         = no
}

Now restart xinetd service

# service xinetd restart