Linux & Windows Systems Administration

Enterprise operating systems managed for security, reliability, and operational continuity.

Technology deep dive

Engineering disciplines & technical approaches

An overview of established concepts, architectures, and methods relevant to linux & windows systems administration. Solutions are scoped to each customer's requirements and available delivery resources.

TECHNICAL DOMAIN 01

Linux server engineering

RHEL-family and Debian-family administration, systemd, SSH, storage volumes, filesystem tuning, SELinux/AppArmor, and package repositories.

TECHNICAL DOMAIN 02

Windows Server engineering

Active Directory Domain Services, Group Policy, DNS, DHCP, Windows Server roles, PowerShell, and Windows event diagnostics.

TECHNICAL DOMAIN 03

Identity & directory services

LDAP, Kerberos, SSO, federation concepts, privileged access, directory synchronization, and access lifecycle workflows.

TECHNICAL DOMAIN 04

Virtualization & compute

Hypervisors, virtual machine templates, snapshots, capacity planning, high availability, and hybrid compute management.

TECHNICAL DOMAIN 05

Automation & configuration

PowerShell, Bash, Ansible-style configuration management, patch orchestration, golden images, and desired-state baselines.

TECHNICAL DOMAIN 06

Operations & recovery

Monitoring, vulnerability remediation, backup verification, restore testing, change control, and system hardening benchmarks.

These descriptions explain technology domains SIS is positioned to discuss and pursue; they are not claims of completed contracts, existing products, or specialized certifications.

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