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| Section | Objectives |
|---|---|
| Topic 1: Configure local storage | - File system mounting using UUID or labels - Logical volumes - Volume groups - Adding partitions, logical volumes, and swap - Physical volumes - GPT disk partitions |
| Topic 2: Manage users and groups | - Password and password aging management - Local group management - Privileged access configuration - Local user account management |
| Topic 3: Manage security | - SELinux file context restoration - SELinux Boolean settings - SSH key-based authentication - SELinux port labels - Firewall configuration - SELinux enforcing and permissive modes - Default file permissions - SELinux file and process contexts |
| Topic 4: Manage software | - Install and remove Flatpak packages - Configure Flatpak repositories - Install and remove RPM packages - Configure RPM repositories |
| Topic 5: Manage basic networking | - Network services at boot - Hostname resolution - IPv4 and IPv6 configuration - Firewall configuration with firewalld and firewall-cmd |
| Topic 6: Create and configure file systems | - File permission troubleshooting - Autofs - VFAT, ext4, and XFS file systems - Extending logical volumes - NFS file systems |
| Topic 7: Create simple shell scripts | - Looping constructs - Conditional execution - Processing command output - Processing script inputs |
| Topic 8: Deploy, configure, and maintain systems | - Task scheduling with at, cron, and systemd timers - Service management - Time service clients - Software installation and updates - Bootloader configuration - Default boot target configuration |
| Topic 9: Understand and use essential tools | - Users and multi-user targets - Creating and editing text files - Shell access and command syntax - File and directory management - File archiving and compression - Text analysis with grep and regular expressions - File permissions - Input and output redirection - Hard and soft links - Remote system access using SSH - System documentation |
| Topic 10: Operate running systems | - Interrupt the boot process - Boot systems into different targets - Network services - Secure file transfer - Boot, reboot, and shut down systems - System logs and journals - Tuning profiles - Process scheduling - Process monitoring and termination |
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NEW QUESTION # 61
Make on data that only the user owner and group owner member can fully access.
Answer:
Explanation:
see explanation below.
Explanation
* chmod 770 /data
* Verify using : ls -ld /data Preview should be like:
drwxrwx--- 2 root sysadmin 4096 Mar 16 18:08 /data
To change the permission on directory we use the chmod command.
According to the question that only the owner user (root) and group member (sysadmin) can fully access the directory so: chmod 770 /data
NEW QUESTION # 62
How is cloud-init integrated with a managed system image?
Answer: B
NEW QUESTION # 63
27. System Optimization Configuration
Choose the recommended tuned configuration set for your system and set it as default.
Answer:
Explanation:
Solution:
# Install and enable tuned
[root@node2 ~]# yum -y install tuned
[root@node2 ~]# systemctl enable tuned
[root@node2 ~]# systemctl restart tuned
# Check the recommended configuration scheme for the system
[root@node2 ~]# tuned-adm recommend
virtual-guest
# Switch to the specified configuration scheme
[root@node2 ~]# tuned-adm profile virtual-guest
# Check the current configuration scheme
[root@node2 ~]# tuned-adm active
Current active profile: virtual-guest
NEW QUESTION # 64
Create a backup file named /root/backup.tar.bz2, which contains the contents of /usr/local, bar must use the bzip2 compression.
Answer:
Explanation:
see explanation below.
Explanation
cd /usr/local
tar -jcvf /root/backup.tar.bz2*
mkdir /test
tar -jxvf /root/backup.tar.bz2 -C /test/
NEW QUESTION # 65
Configure an NFS export /srv/nfs/projects so clients on 192.168.50.0/24 can mount it read-write.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
dnf install -y nfs-utils
mkdir -p /srv/nfs/projects
echo "/srv/nfs/projects 192.168.50.0/24(rw,sync)" > > /etc/exports
exportfs -rav
systemctl enable --now nfs-server
firewall-cmd --permanent --add-service=nfs
firewall-cmd --reload
exportfs -s
Detailed Explanation:
* nfs-utils provides the NFS server tools.
* /etc/exports defines the exported directory and allowed client network.
* exportfs -rav reloads exports.
* nfs-server must be enabled and started.
* If a firewall is enabled, the NFS service must be allowed.
* RHEL 10 network file services documentation covers NFS server configuration. ( Red Hat
Documentation )
NEW QUESTION # 66
......
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