How to Enable SSHD on Ubuntu Karmic
Ubuntu Karmic includes a secure shell client, but doesn't include the SSH server. SSHD, or SSH daemon, is a service that runs in the background on your computer once it's installed. Other users can connect to the SSH server and log in with a user name and password. After they've logged in, they can use the terminal as if they were sitting in front of your computer. You can enable SSH logins on your Ubuntu system by installing the openssh-server package. Ubuntu enables and starts the SSHD service automatically after you install it.
Instructions
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1
Click the "Applications" menu, hover the cursor over "Accessories" and click "Terminal."
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Type "sudo apt-get install openssh-server" into the terminal window and press "Enter."
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Type your password at the password prompt and press "Enter."
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Type "y" and press "Enter" to confirm installation.
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Tips & Warnings
Type "sudo gedit /etc/ssh/sshd_config" into the terminal window and press "Enter" to open the SSHD configuration file in a graphical text editor. Replace "gedit" with "nano" if you want to use a terminal text editor.
You have to restart the SSH service after editing its configuration file for your settings to take effect. You can do so with the "sudo service ssh restart" command.