RHCSA Practice Questions¶

Question 1¶

Network Configuration¶

On Node1, you are logged into a Red Hat Enterprise Linux system. Determine the system’s current local network configuration, then configure the default network interface ensXXX to meet the following requirements:

Configure a static IPv4 address using:
- An IP address within the same network as the current configuration, with a host ID of 50
- Netmask: 255.255.255.0
- Default gateway within the same network, with a host ID of 1
Configure the system to use the following DNS settings:
- DNS server: 8.8.8.8
- DNS search domain: example.local
Set the system hostname to:
- rhel-node1.example.com

Ensure the network configuration is persistent across reboots and active immediately

Question 2:¶

Configure DNF/RPM/YUM Repository Access¶

On Node1, configure repository access using the repositories located at:
- https://repo.example.com/rhel9_10/BaseOS
- https://repo.example.com/rhel9_10/AppStream

Ensure the repositories are enabled, persist across reboots, and can be used to install packages.

Question 3:¶

Configuring and Securing an Apache HTTP Service¶

On Node1, configure the Apache HTTP Server to meet the following requirements:

The Apache web service must be installed, enabled, and running.
The web server must listen on TCP port 85.
The service must be accessible from both the local system and external hosts.
When curled or accessed via a web browser, the server must display the following message:
```
Welcome to the Apache Web Server!
```

Question 5:¶

Shared Group Directories and Permissions¶

On Node1, as root, create shared collaboration directories for group-based access with the following requirements:

Create the following directories:
- /groups/admins
- /groups/users
Configure /groups/admins as follows:
- The group owner of the directory must be admins
- Members of the admins group must have full access (read, write, and execute)
- No access must be granted to users outside the admin group
- The directory owner must remain root, with full access
- All newly created files and directories within /groups/admins must automatically inherit the admin group ownership
Configure /groups/users as follows:
- The group owner must be users
- Owner and members of the users group must have read, write, and execute access
- Other users must have no access
- New files created in this directory can only be deleted by the file owner or root.

Question 6:¶

User and Group Management¶

On Node1, perform the following user and group management tasks:

Create a group named admins with a fixed GID of 3500.
Create a group named users
Create the following user accounts with the specified requirements:
- harry
  - Primary group: admins
  - Secondary group users
  - User ID 3455
- natasha
  - Supplementary groups: admins and users
  - User ID of 3456
- sarah
  - Must not be a member of the admins group
  - Must not have access to an interactive shell
- bruce
  - Member of admins group
  - Home directory must be created explicitly
Set the password for all created users to:
```
password
```

Good to Know¶

For repo setup, gpgcheck=0 disables signature verification, which is acceptable in local/test repositories for exam purposes.
In the actual RHCSA exam, repo links will point to a fully functional repository source, enabling real package access and installations after configuring as we've done above.
- man dnf.conf (search 'repo options')

Things to Work On¶

such a

Convert subnet mask to CIDR notation
/etc/sysconfig/network-scripts/
Does RHEL10 have a flatpak repo?
Can we install packages on our exam boxes that were not specified?
- e.g., dnf-plugins-core
SELinux (ports, etc.)
Firewalld
Special permission bits