Enterprise Linux & RHEL Lifecycle
Linux platforms built right and kept right across distributions — with RHEL as our primary specialization, not our boundary.
The operating system is the mission's foundation.
Every capability above it inherits the quality of the Linux layer. AASHU delivers that layer with fleet discipline: repeatable builds, managed configuration, planned upgrades, and measured performance — from a single enclave to hundreds of nodes.
What this capability covers.
Focused engineering with clear technical outcomes, documented implementation, and a path for the operating team to own the result.
Deployment & provisioning
Kickstart, cloud-init, image-based, vendor-native, and automation-driven builds producing consistent, documented systems on demand.
Version migrations
Cross-distribution upgrades and RHEL major-version migrations in planned waves: dependency mapping, rehearsals, and rollback per wave.
Configuration management
Fleet configuration standardized and enforced as code — drift detected, deviations explained.
Patching & lifecycle
Patch baselines, package and advisory management, and maintenance-window discipline with health checks.
Performance engineering
Kernel, storage, and network tuning driven by measurement, with before/after evidence.
Identity integration
SSSD, IdM/AD join, Kerberos, and sudo policy — centralized authentication done right the first time.
What you receive.
From environment understanding to operational ownership.
Every engagement is scoped to the actual environment. The implementation changes by capability, but the operating discipline remains consistent.
Assess the environment
Map the current state, dependencies, constraints, risk, and operational ownership before making changes.
Engineer the implementation
Build the technical path with repeatable configuration, validation, and rollback appropriate to the scope.
Leave an operating model
Document the baseline, runbooks, lifecycle tasks, and handoff so the capability remains supportable.
Ready to scope this work?
Tell us the environment, requirement, constraints, and timeline.