Enable telnet on Fedora


# yum whatprovides telnet-server
Loaded plugins: langpacks, presto, refresh-packagekit
1:telnet-server-0.17-52.fc17.x86_64 : The server program for the Telnet remote login protocol
Repo        : fedora

# yum install telnet-server-0.17-52.fc17.x86_64

# vi /etc/xinetd.d/telnet
service telnet
{
        .....
        disable         = no
}

# service xinetd restart