The default system administrator account of Linux is the root account.

The default system administrator account in Linux is root.

Root is a user account with permissions in the Linux system, also known as the super user. It has full access to all files and configurations in the system and can make any modifications and operations to the system. When installing a Linux system, a root account will be manually created and the user will be asked to set a root password.

The root account has the following characteristics:

1. Full control permissions: root has full control permissions for all files and directories in the system, and can read, write and execute any file. This makes the root account the most important and powerful account for system administrators.

2. Key system operation and maintenance work: The root account is mainly used for key system operation and maintenance work, such as: installing, upgrading software, system configuration, managing users and groups, setting file permissions, managing processes, etc.

3. Security risk: Because of the powerful permissions of the root account, it also has greater security risks. Wrong command operations or the execution of malicious programs may cause the system to crash or be invaded. Therefore, you should be careful when using the root account, use it as little as possible, but adhere to the principle of safe operation.

4.sudo command: In order to reduce the risk of directly using the root account linux creates an administrator user Hongqi Linux system, the Linux system provides the sudo command. sudo allows ordinary users to run specified commands as administratorslinux Create administrator usersLinux server configuration and management without knowing the password of the root account. Administrators can configure sudo files to authorize ordinary users to use sudo commands.

In order to improve the security of the system, the following principles should be followed:

1. Try not to use the root account: Only use the root account when performing operations that require root permissions. Normally, you should use an ordinary user account.

2. Use the sudo command: For operations that require root permissions, use the sudo command for authorization. This can reduce the impact of misuse or malicious operations on the system.

3. Set a strong password: Set a strong password for the root account to prevent it from being guessed or violently cracked.

4. Use a firewall: Configure the firewall to restrict remote access to the root account and only allow access from specific IP addresses or networks.

In short, the root account is a privileged user account in the Linux system and has full control of the system. You need to be careful when using the root account and try to follow the principles of safe operation to protect the security and stability of the system.

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