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In order for a system to accept SSH connections the system must first be running the SSH server. By default, Ubuntu Linux does not install the SSH server so the first step is to ensure that the server is installed. This can be performed using either the Synaptic Package Manager or the apt-get command-line tool.
To install usingusing the Synaptic Package Manager, select the ''System'' desktop menu and then click on ''Synaptic Package Manager'' in the ''Administration'' sub-menu. Enter your password when prompted to do so. Click on the Search button in the toolbar and search for ''openssh-server''. After the search completes, you will see ''openssh-server'' in the package list. Simply click on the check box next to this item and follow the instructions to install the SSH server package. To install from the command line, begin by opening a terminal window by selecting the Applications menu and selecting Konsole from the System Tools menu. In the terminal window enter the following command and press enter to execute it: <pre>sudo apt-get install openssh-server</pre> The installation process with download the SSH server, install it and start the service running in the background. The next step is to configure the firewall to allow SSH connections to be established to this system. == Configuring the Ubuntu Linux Firewall to Allow SSH Connections == If you are using a firewall to protect your system you will need to allow SSH connections before you be able to connect from a remote system. If youa re using the basic firewall configuration (see [[Basic Ubuntu Linux Firewall Configuration]]) you can allow SSH connections using the ''lokkit'' tool.
