Ubuntu Server 13.1 - Install Telnet and SSH Server for remote connection (Post Setup 3)

By default, telnet server and ssh server is not install.  You will have to install it yourself. 
1. Before installation of telnet and ssh, do a ping test to ensure that you are able to connect to Internet from Ubuntu Server.
2. Update and refresh the latest software packages list in Ubuntu Server. This is to ensure that you will install the latest copy of Telnet Server and SSH Server.

$ sudo apt-get update

You will see a list of connections to http://us.archive.ubuntu.com ….  ended with “Reading package lists… Done”.
If you don’t have any error message, you are good to go.
3. Install Telnet Server

$ sudo apt-get install telnetd

After this step, you should be able to telnet to your Ubuntu Server.
If for any reasons that you need to restart your telnetd services, enter the following command

$ sudo /etc/initd/openbsd-inetd restart

4. Install SSH Server

$ sudo apt-get install openssh-server

After this step, you should be able to ssh to your Ubuntu Server.
If for any reason that you need to restart your ssh services, enter the following command

$ sudo /etc/init.d/ssh restart