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| Section | Weight | Objectives |
|---|---|---|
| Manage security | 10% | - Enforce SELinux modes, contexts, booleans, and port labeling - Restore file contexts and troubleshoot SELinux issues |
| Manage users and groups | 10% | - Manage password policies and sudo access - Configure SSH key-based authentication - Create, delete, modify users and groups |
| Create and configure file systems | 15% | - Mount and manage network file systems (NFS, autofs) - Manage access control lists (ACLs) - Create and mount XFS, ext4, VFAT file systems - Maintain entries in /etc/fstab using UUID or labels |
| Deploy, configure, and maintain systems | 15% | - Manage network interfaces and settings with NetworkManager/nmcli - Configure firewalld firewall rules - Manage software packages with DNF/YUM |
| Operate running systems | 20% | - Maintain accurate system time with chrony - Schedule tasks using cron and at - Manage logging and journaling - Boot systems into different targets; manage systemd units - Manage networking and network services |
| Perform basic shell scripting | - Use conditional statements, loops, and script inputs | |
| Configure local storage | 15% | - Configure swap space - List, create, delete partitions and GPT/MBR layouts - Create and manage LVM physical volumes, volume groups, logical volumes |
| Understand and use essential tools | 25% | - Use input-output redirection - Access shell prompt and issue commands with correct syntax - Create/edit text files; manage files, directories, links, permissions - Access remote systems via SSH - Use grep and regular expressions - Archive, compress, unpack files using tar, gzip, bzip2 |
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NEW QUESTION # 50
Find Files
Find all files belonging to the user "jacques" and move them to the directory /root/findfiles under the root directory.
Answer:
Explanation:
Solution:
[root@node1 ~]# mkdir /root/findfiles
[root@node1 ~]# find / -user jacques
[root@node1 ~]# find / -user jacques -exec cp -a {} /root/findfiles \;
# Verification
[root@node1 ~]# ll /root/findfiles/
NEW QUESTION # 51
What is the Puppet equivalent to an Ansible Playbook called?
Answer: D
Explanation:
Explanation/Reference:
NEW QUESTION # 52
Change the logical volume capacity named vo from 190M to 300M. and the size of the floating range should set between 280 and 320. (This logical volume has been mounted in advance.)
Answer:
Explanation:
Answer see in the explanation.
Explanation/Reference:
# vgdisplay
(Check the capacity of vg, if the capacity is not enough, need to create pv , vgextend , lvextend)
# lvdisplay (Check lv)
# lvextend -L +110M /dev/vg2/lv2
# resize2fs /dev/vg2/lv2
mount -a
(Verify)
------------------------------------------------------------------------------- (Decrease lvm)
# umount /media
# fsck -f /dev/vg2/lv2
# resize2fs -f /dev/vg2/lv2 100M
# lvreduce -L 100M /dev/vg2/lv2
# mount -a
# lvdisplay (Verify)
OR
# e2fsck -f /dev/vg1/lvm02
# resize2fs -f /dev/vg1/lvm02
# mount /dev/vg1/lvm01 /mnt
# lvreduce -L 1G -n /dev/vg1/lvm02
# lvdisplay (Verify)
NEW QUESTION # 53
Configure SELinux so that /webdata can be used as web content and make the context persistent.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
mkdir -p /webdata
semanage fcontext -a -t httpd_sys_content_t "/webdata(/.*)?"
restorecon -Rv /webdata
ls -Zd /webdata
Detailed Explanation:
* semanage fcontext defines a persistent SELinux file-context rule.
* restorecon applies the correct labels to the directory and contents.
* httpd_sys_content_t is the standard read-only content type for Apache.
* RHEL 10 SELinux documentation covers persistent labeling with semanage and applying labels with
restorecon. ( Red Hat Documentation )
NEW QUESTION # 54
Configure Container as a Service
As the user "wallah," configure a systemd service for the container:
- Container name: ascii2pdf
- Use the image named pdf created earlier.
- Service name: container-ascii2pdf
- Automatically start the service on system reboot without manual intervention.
- Configure the service to automatically mount /opt/file to /dir1 and /opt/progress to /dir2 in the container upon startup.
Answer:
Explanation:
# Note: Perform the following operations by SSHing into localhost as the user "wallah"
[root@node1 ~]# ssh wallah@localhost
# Prepare the relevant mapping directories
[wallah@node1 ~]$ sudo mkdir /opt/{file,progress}
[wallah@node1 ~]$ sudo chown wallah:wallah /opt/{file,progress}
# Start the container and map directories
# :Z changes the SELinux security context of the directory to allow container access.
[wallah@node1 ~]$ podman run -d --name ascii2pdf -v /opt/file:/dir1:Z -v /opt/progress:/dir2:Z pdf
[wallah@node1 ~]$ podman ps -a
# Create systemd service file
[wallah@node1 ~]$ mkdir -p ~/.config/systemd/user
[wallah@node1 ~]$ cd ~/.config/systemd/user/
[wallah@node1 ~]$ podman generate systemd -n ascii2pdf -f --new
[wallah@node1 user]$ ll
total 4
-rw-r--r--. 1 wallah wallah 770 Dec 13 01:07 container-ascii2pdf.service
# Stop and remove the existing ascii2pdf container
[wallah@node1 ~]$ podman stop ascii2pdf
[wallah@node1 ~]$ podman rm ascii2pdf
[wallah@node1 ~]$ podman ps -a
# Enable and start the container-ascii2pdf service
[wallah@node1 ~]$ systemctl --user daemon-reload
[wallah@node1 ~]$ systemctl --user enable --now container-ascii2pdf
# Check container status
[wallah@node1 ~]$ systemctl --user status container-ascii2pdf
[wallah@node1 ~]$ podman ps
# On node1, switch to the root user to perform the following operations
# Ensure that the services for the wallah user start automatically at system boot
[root@node1 ~]# loginctl enable-linger
[root@node1 ~]# loginctl show-user wallah
# Check to ensure the container starts on boot (mandatory operation)
[root@node1 ~]# reboot
[root@node1 ~]# ssh wallah@node1
[wallah@node1 ~]# podman ps
NEW QUESTION # 55
......
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