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| Section | Objectives |
|---|---|
| Topic 1: Operate running systems | - Boot systems into different targets - Tuning profiles - Process monitoring and termination - Process scheduling - Secure file transfer - System logs and journals - Boot, reboot, and shut down systems - Network services - Interrupt the boot process |
| Topic 2: Manage security | - SELinux port labels - SELinux enforcing and permissive modes - SELinux file and process contexts - SELinux Boolean settings - SELinux file context restoration - Firewall configuration - Default file permissions - SSH key-based authentication |
| Topic 3: Understand and use essential tools | - File permissions - Input and output redirection - Shell access and command syntax - Remote system access using SSH - System documentation - Creating and editing text files - File and directory management - Hard and soft links - Users and multi-user targets - File archiving and compression - Text analysis with grep and regular expressions |
| Topic 4: Deploy, configure, and maintain systems | - Software installation and updates - Default boot target configuration - Task scheduling with at, cron, and systemd timers - Time service clients - Service management - Bootloader configuration |
| Topic 5: Create and configure file systems | - VFAT, ext4, and XFS file systems - File permission troubleshooting - Autofs - NFS file systems - Extending logical volumes |
| Topic 6: Configure local storage | - Logical volumes - File system mounting using UUID or labels - Volume groups - Physical volumes - Adding partitions, logical volumes, and swap - GPT disk partitions |
| Topic 7: Manage basic networking | - Hostname resolution - Firewall configuration with firewalld and firewall-cmd - IPv4 and IPv6 configuration - Network services at boot |
| Topic 8: Create simple shell scripts | - Looping constructs - Conditional execution - Processing command output - Processing script inputs |
| Topic 9: Manage software | - Install and remove RPM packages - Install and remove Flatpak packages - Configure RPM repositories - Configure Flatpak repositories |
| Topic 10: Manage users and groups | - Password and password aging management - Local user account management - Local group management - Privileged access configuration |
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NEW QUESTION # 11
Install a FTP server, and request to anonymous download from /var/ftp/pub catalog. (it needs you to configure yum direct to the already existing file server. )
Answer:
Explanation:
Answer see in the explanation.
Explanation/Reference:
# cd /etc/yum.repos.d
# vim local.repo
[local]
name=local.repo
baseurl=file:///mnt
enabled=1
gpgcheck=0
# yum makecache
# yum install -y vsftpd
# service vsftpd restart
# chkconfig vsftpd on
# chkconfig --list vsftpd
# vim /etc/vsftpd/vsftpd.conf
anonymous_enable=YES
NEW QUESTION # 12
Add a new logical partition having size 100MB and create the data which will be the mount point for the new partition.
Answer:
Explanation:
1. Use fdisk /dev/hda-> To create new partition.
2. Type n ->For New partitions
3. It will ask for Logical or Primary Partitions. Press l for logical.
4. It will ask for the Starting Cylinder: Use the Default by pressing Enter Keys
5. Type the size: +100M you can specify either Last cylinder of size here.
6. Press P to verify the partitions lists and remember the partitions name.
7. Press w to write on partitions table.
8. Either Reboot or use partprobe command.
9. Use mkfs -t ext3 /dev/hda?
OR
1. mke2fs -j /dev/hda? ->To create ext3 filesystem.
2. vi /etc/fstab
3. Write:
/dev/hda? /data ext3 defaults 0 0
4. Verify by mounting on current sessions also:
mount /dev/hda? /data
NEW QUESTION # 13
Create a group named ops, create user sara, and add sara to the supplementary group ops.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
groupadd ops
useradd sara
usermod -aG ops sara
id sara
Detailed Explanation:
* groupadd creates the group.
* useradd creates the user.
* usermod -aG adds the user to a supplementary group without removing existing memberships.
* id sara confirms the result.
NEW QUESTION # 14
Pull the registry.access.redhat.com/ubi10/ubi image and run a rootless container named webtest that executes
sleep 3600.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
podman pull registry.access.redhat.com/ubi10/ubi
podman run -d --name webtest registry.access.redhat.com/ubi10/ubi sleep 3600
podman ps
Detailed Explanation:
* podman pull downloads the image.
* podman run -d starts the container in the background.
* Rootless Podman is a normal RHEL container workflow.
* RHEL 10 container documentation continues to center on Podman for image and container
management. ( Red Hat Documentation )
NEW QUESTION # 15
One Logical Volume is created named as myvol under vo volume group and is mounted. The Initial Size of that Logical Volume is 400MB. Make successfully that the size of Logical Volume 200MB without losing any data. The size of logical volume 200MB to 210MB will be acceptable.
Answer:
Explanation:
see explanation below.
Explanation
* First check the size of Logical Volume: lvdisplay /dev/vo/myvol
* Make sure that the filesystem is in a consistent state before reducing:
# fsck -f /dev/vo/myvol
* Now reduce the filesystem by 200MB.
# resize2fs /dev/vo/myvol 200M
* It is now possible to reduce the logical volume. #lvreduce /dev/vo/myvol -L 200M
* Verify the Size of Logical Volume: lvdisplay /dev/vo/myvol
* Verify that the size comes in online or not: df -h
NEW QUESTION # 16
......
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