Tag: #rhel
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 8 posts
Why Installing RHEL Packages in an Air-Gapped Network Is Genuinely Hard — Dependencies Are a Graph, and You Cannot Solve It from the Inside
Explains from first principles why bringing RHEL packages into a locked-down network for finance, government, or defense never ends at "just copy one rpm file". It covers the fact that RPM dependencies are a symbol-level
2026-08-14 · 8 min read #linux#rhel#air-gap#dnf#rpmModules and Version Pinning in an Air-Gapped Network — RHEL 8, 9, and 10 Tell Different Stories
Separates out, against the official documentation, exactly where RHEL 8 modularity goes wrong in an air-gapped network and how that story changes in RHEL 9 and RHEL 10. The key point is that in a local repository built b
2026-08-14 · 10 min read #linux#rhel#air-gap#dnf#modularityBuilding a Local Repository Inside an Air-Gapped Network — createrepo_c, repodata, .repo Files, and GPG Keys
Covers the whole process of turning a transferred bundle of rpms into a working dnf repository inside an air-gapped network. It walks through the structure of the repodata directory that createrepoc produces and the role
2026-08-14 · 10 min read #linux#rhel#air-gap#dnf#createrepoThe Air-Gapped Operations Playbook — Keeping Up with Security Patches, Rolling Back, and Managing CVE Lag
The story that begins after the transfer procedure is finished — the operations chapter, about running an air-gapped network for years. It first makes clear that slow CVE response inside an air-gapped network is not team
2026-08-14 · 13 min read #linux#rhel#air-gap#dnf#securityBringing Container Images into an Air-Gapped Network — podman save and skopeo Are Different Tools
Once the RPM transfer procedure has settled into place, the next request is almost always container images. It starts by separating podman save from the skopeo copy family — one goes through the local image store, the ot
2026-08-14 · 12 min read #linux#rhel#air-gap#podman#skopeoAir-Gap Transfer Procedure and Integrity — Building a Bundle That Still Installs the Same Way Six Months Later
Covers what to put on the transfer medium, what to verify, and how to make that bundle produce the same result when you open it again six months later. It starts with why signature verification matters more in an air-gap
2026-08-14 · 8 min read #linux#rhel#air-gap#rpm#gpgDownloading on the Outside for an Air-Gapped Transfer — dnf download, reposync, and yumdownloader Solve Different Problems
A command-by-command walkthrough of the real procedure for pulling RHEL packages, dependencies and all, on an internet-connected machine so the result can be carried into an air-gapped network. It covers exactly what --r
2026-08-14 · 10 min read #linux#rhel#air-gap#dnf#rpmComparing Red Hat vs Ubuntu Server Operations: An Enterprise Decision Guide
RHEL/Rocky Linux and Ubuntu Server are compared from an enterprise operation perspective, including package management, security patches, licensing, technical support, and container compatibility, and present selection c
2026-03-07 · 12 min read #linux#redhat#rhel#ubuntu#centos