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Developer tools · #almalinux
Resolve DNS failures on AlmaLinux 9 by checking systemd‑resolved, /etc/resolv.conf, firewall rules, and interface DNS settings. Follow this step‑by‑step guide to diagnose and fix the problem.
ELevate turns a CentOS 7‑to‑AlmaLinux 8 upgrade into a repeatable, testable process. Run a preupgrade check, fix inhibitors, then let the tool handle the in‑place migration—all within a single reboot.
Rebuilding from scratch feels safer, but an in-place AlmaLinux 9 to 10 upgrade via Leapp can preserve configuration and reduce downtime—if you treat it as a controlled migration with proper pre-flight checks.
Learn how to use dnf history undo on AlmaLinux to reverse bad package updates, what the transaction log covers, and why it is not a full backup.
Enabling FIPS mode on AlmaLinux changes the cryptographic trust boundary. Learn the minimal design, operational checks, and failure modes before you rebuild initramfs.
AlmaLinux keeps RHEL binary compatibility for the OS base and uses AppStream dnf modules to isolate application versions. This lets you run certified workloads while choosing specific language streams without upgrading the entire system.
Learn how to manage AppStream modularity and EPEL repositories in AlmaLinux 9 to maintain RHEL binary compatibility while expanding software availability.
Migrate CentOS 7 or 8 to AlmaLinux using the official almalinux-deploy script. Follow this step-by-step guide covering prerequisites, execution, verification, and rollback options for a safe migration.
AlmaLinux rebuilds RHEL source RPMs for binary compatibility. Here's what that guarantee covers, how to verify it yourself, and where the rebuild lag shifts risk to you.