1. First login

ssh username@server_ip

Type your password at first login password change is requested, then verify if you are logged in as the root user.

1.1. Change your default editor

After logging in, you may want to set your preferred editor for editing configuration files. Use the following command:

sudo update-alternatives --config editor

This will show a list of available editors. Select the number corresponding to your choice (e.g., vim, nano, etc.).

There are 4 choices for the alternative editor (providing /usr/bin/editor).

  Selection    Path                Priority   Status
------------------------------------------------------------
* 0            /bin/nano            40        auto mode
  1            /bin/ed             -100       manual mode
  2            /bin/nano            40        manual mode
  3            /usr/bin/vim.basic   30        manual mode
  4            /usr/bin/vim.tiny    15        manual mode

Press <enter> to keep the current choice[*], or type selection number: