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Table of Contents

• Abilitate root login
• Switch SSH port
• How to create an RSA ssh key

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Abilitate root login

By default, when installing the OS, root can’t login via ssh, so we need to enable it.

1. Open the ssh config file:

    $ ee /etc/ssh/sshd_config
   

2. Edit/Add the following option as such:

    PermitRootLogin yes
   

   Note: by default, it’s no. There’s also another option without-password for enabling just login via rsa ssh key and disabling via password.

3. Refresh the settings:

    $ service sshd reload
   

   Note: by doing reload instead of restart, the already connected ssh connections will stay connected and working

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Switch SSH port

By default, the (sftp) ssh port is 22, but it’s easily swichable.

1. Open the ssh config file:

    $ ee /etc/ssh/sshd_config
   

2. Edit/Add the following option as such specifying a different port number: (it’s advised to use a number above 1024 since the first 1024 are reserved)

    Port 22
   

3. Refresh the settings:

    $ service sshd reload
   

   Note: by doing reload instead of restart, the already connected ssh connections will stay connected and working

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How to create an RSA ssh key

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