Introduction

Red Hat Enterprise Linux (RHEL) is a secure, open-source operating system designed specifically for business environments. It excels in providing seamless performance in multi-user and multi-tasking situations. Renowned for its reliability, scalability, and stability, RHEL is ideally suited for a diverse array of business applications.

Features and benefits

RHEL provides subscription-based worldwide support, guaranteeing prompt upgrades and knowledgeable help. Major corporations trust it for its performance and stability, making it the most popular Linux operating system for servers. RHEL is a popular option for companies all around the world because of its robust community and enterprise-grade capabilities.

Importance of user management in Linux

In Linux, user management is crucial for assigning the right permissions based on job roles. It ensures that each user can only access the resources they need, maintaining system integrity and security. Effective user management protects sensitive information and reduces unauthorized access.

Types of Users in Linux

Root User: Denoted by #, the root user has all permissions and privileges, functioning as the superuser with full control over the system.Definition and role Capabilities and cautions

Regular Users: Denoted by $, regular users have restricted permissions and privileges, allowing them access only to their own files and specific system resources.

System Users: These users are created automatically by application software in the Linux OS, typically for running specific system services or processes.

Attributes of Users

• User Identifiers (UIDs): A unique ID number assigned to each user for identification in the system.

• Group Identifiers (GIDs): A unique ID for the user's group, which may match the UID if the group isn't created separately.

• Comments: Additional information or description about the user.

• Home Directory Path: The directory assigned as the user's home, where their personal files are stored.

• Shell: The command-line interface the user interacts with, such as bash or zsh.Creating and Managing Users

Steps to Create a New User

• Create a New User: Use the useradd or adduser command to create a new user.

• Set a Password: Use the passwd command to set a password for the new user.

• Modify User Attributes: Use the usermod command to change user permissions or other attributes.

• Delete a User: Use the userdel command to delete an existing user from the system.Conclusion

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