虚拟机安装Debian11

Quick Install

I prefer to choose the netinst.iso of Debian 11 because it has a smaller size and basic functionality. However, there are a few things to pay attention to during the installation process.

• Scan extra installation media?

  • no
  • yes

  when we choose no, it won't scan other package info and save our time

• Using a network mirror?

  • no
  • yes

  We hope to install the necessary packages as needed.
  These two steps save us a lot of installation time.

Allow remote ssh connect

1. First, log in using the root account and install openssh-server to allow SSH tools to connect remotely. What we need to do is

   apt install openssh-server
2. Next, we need to install another tool, sudo, which allows other users to have root privileges.

   apt install sudo
3. Then, add the non-root user to the sudoers list to grant them root privileges

...
# User privilege specification
root    ALL=(ALL:ALL) ALL
# Change your own non-root-user bellow
your-non-root-user    ALL=(ALL:ALL) NOPASSWD: ALL
# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL
...

Attention: The NOPASSWD setting, which means that the non-root user does not need to enter a password when temporarily using root privileges. This setting is only for convenience during testing. For a production environment, it is recommended to configure it as follows. your-non-root-user ALL=(ALL:ALL) ALL