Installing SSH server in Kubuntu
Tuesday, November 4, 2008

Install

Run in console:

sudo apt-get install openssh-server openssh-client

Configure SSH server

Run in console:

sudo kate /etc/ssh/sshd_config

Change the following line

PasswordAuthentication yes

to

PasswordAuthentication no

in order to disable clear text password authentication.

Run in console:

/etc/init.d/ssh reload

Now the configuration is reloaded.

Setup keys

Run in console:

mkdir ~/.ssh
chmod 700 ~/.ssh
ssh-keygen -q -f ~/.ssh/id_rsa -t rsa

Enter a passphrase for that. You have to use it when connecting from a client.
Now the public key is placed in ~/.ssh/id_rsa.pub, while the private key in ~/.ssh/id_rsa.

Run in console:

cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
rm ~/.ssh/id_rsa.pub
chmod go-rwx ~/.ssh/*

Now the public key is appended to the ~/.ssh/authorized_keys file.

Setup client

Copy the ~/.ssh/id_rsa file to the client and use it as the private key.

Done!

Posted byWill Tang at 9:28 AM  

Labels: kubuntu, linux, ssh

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