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RHEL
Specialization
AB
ANDRES BERNAL
@abernal093

Linux & Cloud Engineer. RHEL specialist.
Writing real tutorials from real labs —
no theory, just working configs.

RHEL 9 Pacemaker Docker Ansible AWS Azure CI/CD Kubernetes
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RHEL 9 x HIGH AVAILABILITY x PACEMAKER x COROSYNC x DOCKER x ANSIBLE x CI/CD x AZURE x AWS x KUBERNETES x SELINUX x TERRAFORM
RHEL 9 x HIGH AVAILABILITY x PACEMAKER x COROSYNC x DOCKER x ANSIBLE x CI/CD x AZURE x AWS x KUBERNETES x SELINUX x TERRAFORM
LATEST ARTICLES // RECENT POSTS
Intermediate
Mastering the Bash Shell in RHEL

Master the Bash shell in RHEL. Learn shell and environment variables, command and variable substitution, tab completion, history, redirection, pipes, filename globbing, regular expressions, and how to configure system-wide and per-user shell environments. RHCSA prep included.

2026-07-15 READ MORE →
RHEL / Linux
Linux File Permissions and Searching in RHEL

Master Linux file permissions in RHEL. Learn the UGO/RWX model, chmod, chown, umask, special bits (SUID, SGID, Sticky), and the find command with real lab examples. RHCSA prep included.

2026-04-23 READ MORE →
RHEL / Linux
File Compression and Archiving with tar, gzip, and bzip2 in RHEL

Learn how to compress and archive files in RHEL using gzip, bzip2, and tar. Real lab examples with commands, options, and RHCSA exam tips included.

2026-03-24 READ MORE →
RHEL / Linux
Linux Directory Structure and File Systems in RHEL 10

Learn how Linux directory structure and file systems work in RHEL 10. A complete guide covering FHS, top-level directories, static vs dynamic data, and real lab examples.

2026-03-22 READ MORE →

BUILT FROM
THE LAB.

Every article on StackDeploy comes from real
lab configurations — actual terminal outputs,
real commands, real results. No theory,
no fluff. Just infrastructure that works.

5+
Years experience
RHEL
Certified
100%
Lab verified
MX
Based in Mexico