Howto install Telnet Server for the first time

After confusing with the wiki of installing telnet server on NMT, I will try to share the step-by-step that I following.
Before it, make sure you had install your NMT Apps, if not follow this.

Install Telnet
1. Plugin harddrive to linux computer
2. copy busybox26 to /mnt/syb8634/bin
3. chmod 755 busybox26
4. edit file /mnt/syb8634/etc/ftpserver.sh
5. Add the following line to end of the Start() directive
/mnt/syb8634/bin/busybox26 telnetd -l /bin/sh -p 23 &
6. Add the following line to end of the Stop() directive
killall busybox26
7. Plugin the harddrive to NMT
8. NMT Applications > start FTP Server