User and Group Management

[swetank01]

Task Objective:

Gain practical experience with essential Linux commands for user and group management.

Scenario:

Imagine you are the system administrator for a new web development team. You need to create user accounts for three developers: Alice, Bob, and Charlie. These users will also need to be part of a group called "webdev" to access project files and resources.

Tasks:

1. Create Users:

   • Use the useradd command to create user accounts for Alice, Bob, and Charlie.
   • Refer to the cheat sheet for the syntax and options available with useradd.
   • Hint: Consider using the -m option to create a home directory for each user.

2. Set Passwords:

   • Use the passwd command to set initial passwords for each user.
   • Important Note: When prompted, enter the new password but avoid typing it here for security reasons.

3. Verify User Information:

   • Use the id command to display information about each user, including their user ID (UID) and group ID (GID).

4. Create a Group:

   • Use the groupadd command to create a new group called "webdev".

5. Add Users to a Group:

   • Use the usermod command to add Alice, Bob, and Charlie to the "webdev" group.
   • Refer to the cheat sheet for the syntax and options available with usermod.

6. Verify Group Membership:

   • Use the groups command to list the groups each user belongs to. This should confirm that Alice, Bob, and Charlie are now members of the "webdev" group.

Bonus Challenge:

• Explore the gpasswd command. What can you do with it related to groups?

Remember:

• It's recommended to practice these commands in a safe, non-production environment to avoid impacting real user accounts.
• Pay close attention to the options available with each command and use them appropriately.
• When setting passwords, remember to choose strong and unique passwords for each user.

Further Exploration:

• After completing these tasks, try experimenting with additional options and functionalities of the covered commands.
• Explore online resources for more advanced user and group management techniques in Linux.

[rsingh0706]

1. Create Users: useradd Alice useradd Bob useradd Charlie
2. Set passwords: passwd Alice passwd Bob passwd Charlie
3. Verify User Information: Use the id command to display information about each user, including their user ID (UID) and group ID (GID). id Alice id Bob id Charlie
4. Create a Group: groupadd webdev
5. Add User to a Group usermod -aG webdev Alice usermod -aG webdev Bob usermod -aG webdev Charlie
6. verify Group Membership vim /etc/passwd