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Developer tools · #almalinux
Learn how to use AlmaLinux AppStream to manage multiple software versions of the same package without upgrading your entire OS, using the dnf module system.
AlmaLinux’s AppStream lets you run multiple application streams side‑by‑side. This blog explains how to enable, use, and switch streams—like Node.js 18 and 16—while highlighting trade‑offs for enterprise servers.
Learn how to use AlmaLinux AppStream modules to manage multiple software versions (streams) on a single OS deployment without breaking system dependencies.
I need to upgrade the Bash package on an AlmaLinux system while minimizing risk and preserving the ability to roll back if the update causes problems. I plan to back up configuration files and possibly take a system snapshot, but I am uncertain about the best practices for selecting which files to back up, how to verify the new Bash version works correctly,
After hardening an AlmaLinux 8 system with the CIS Security Benchmarks, a cron job that uses ack to search a log file returns zero matches, while the same command works correctly when run from an interactive shell. This causes monitoring or alerting scripts to fail. What explains this discrepancy, and how can the cron job be fixed while remaining compliant w
When running a Bash script that uses ack to search for patterns in a file, the script reports the expected counts when executed directly from an interactive shell on AlmaLinux 9. However, the same script invoked via a cron job returns zero counts, causing the conditional logic to fail. What causes this difference in behavior, and how can the script be modifi
The goal is to keep repository metadata current enough to prevent dependency resolution failures while avoiding unnecessary network traffic caused by frequent cache refreshes. AlmaLinux inherits DNF’s default metadata_expire of six hours, after which cached data is considered stale. Administrators can either set metadata_expire=0 to force a refresh on every
AlmaLinux kernels include CONFIG_LIVEPATCH and provide the kpatch user-space utilities in standard repositories. This allows for the loading of signed live-patch modules to address kernel vulnerabilities without requiring a system reboot. While the framework for live patching is present, there is no integrated, default payload service provided by the distrib
Stream Management in AppStream AlmaLinux 9 uses the DNF package manager with the AppStream model, allowing multiple versions of a software stream (e.g., Node.js, Python) to coexist. When a system has a module stream already enabled, switching to another stream often triggers dependency conflicts because the previous stream’s packages remain installed. Curren
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