systemd troubleshooting is easier when you stop treating systemctl restart as the diagnostic method. A failed service can be caused by the unit file, an […]
XK0-006
CompTIA XK0-006: Linux Storage with LVM, RAID, and Filesystems
Linux storage problems become much easier when you identify the layer that is actually failing. A disk can contain partitions; partitions or disks can become […]
CompTIA XK0-006: SELinux, AppArmor, firewalld, and UFW
SELinux, AppArmor, firewalld, and UFW are often grouped under “Linux security,” but they do not enforce the same thing. SELinux and AppArmor are mandatory access […]
CompTIA XK0-006: Linux+ Container Isolation Fundamentals
Containers are often described as lightweight virtual machines, but that analogy becomes misleading when troubleshooting security, storage, networking, or resource behavior. A container usually shares […]
CompTIA XK0-006: Choosing Bash, Python, or Ansible
Bash, Python, and Ansible can all automate Linux administration, but they are optimized for different kinds of work. Bash is close to the shell and […]