// Server Management · Linux Hardening · Windows AD · 99.99% Uptime

Hardened Infrastructure.
Zero Unplanned Downtime.

Unpatched server kernels, exposed management ports, and missing backup validations are open invitations for ransomware. CyberHQ manages and hardens your Linux, Windows, and virtualization clusters with 24/7 proactive monitoring.

99.99%

Uptime SLA Maintained

CIS

Level-1 & Level-2 Hardening

VMware+

Proxmox · Hyper-V · KVM

Automated

Zero-Downtime Patching

Get Server Management Quote See Hardening Framework

// Enterprise Systems Administration

Proactive Hardening &
Continuous System Health

Server management is not just fixing crashes when they happen — it is continuous optimization, kernel updates, SSH bastion locking, automated immutable backups, and real-time CPU/RAM/IOPS threshold alerting.

Ubuntu, RHEL, Debian, Rocky Linux, and Windows Server 2016-2025 administration

Automated Immutable 3-2-1 Backups with daily disaster recovery test verification

Active Directory Forest optimization, GPO hardening, and Kerberos audit

Cluster virtualization: VMware ESXi, Proxmox VE, and Nutanix hyperconverged clusters

cyberhq@ops-center:~$ ansible-playbook harden_servers.yml

[*] Running CIS Benchmark Level-2 baseline across 32 servers...

[+] Enforcing SSH Ed25519 keys & disabling password auth

[+] Configuring kernel sysctl memory protections (ASLR enabled)

[+] Setting up UFW/iptables with zero-trust egress rules

[*] Checking automated backup status...

[✓] All 32 instances hardened. 0 downtime incurred during rolling patch.

// Execution Lifecycle

Server Hardening & Management Methodology

CIS Level-2 Baseline Hardening & Continuous Uptime Architecture

PHASE 01 STAGE 1/5

Server Inventory & Kernel Audit

Complete baseline discovery of all Linux/Windows virtual machines, storage IOPS bottlenecks, and open management ports.

AnsiblePrometheusCIS-CAT

PHASE 02 STAGE 2/5

CIS Level-2 Baseline Hardening

Enforcing Ed25519 SSH keys, disabling obsolete SSL/SMB protocols, configuring kernel sysctl parameters, and locking firewall rules.

UFW/iptablesGPO BaselineSELinux/AppArmor

PHASE 03 STAGE 3/5

Immutable 3-2-1 Backup Engine

Deploying air-gapped WORM backup repositories with automated daily bare-metal recovery verification scripts.

VeeamProxmox BackupRestic

PHASE 04 STAGE 4/5

24/7 Health Telemetry & Failover

Real-time CPU, RAM, disk I/O, and service health alerting with automated high-availability failover triggers.

GrafanaZabbixHAProxy

PHASE 05 STAGE 5/5

Zero-Downtime Patch Rollouts

Automated rolling kernel and security updates during maintenance windows ensuring 99.99% uptime for business applications.

Live Kernel PatchRolling UpdateSLA Report

Comprehensive Security Deliverables Included

Every engagement includes executive briefings, technical PoCs, code-level fix guidance, and a complimentary 30-day verification re-test.

Request Scope & Quote

// Production Reliability

Case Study: Zero-Downtime Data Center Migration

How CyberHQ migrated and hardened 48 mission-critical servers for a Surat brokerage firm without 1 minute of customer downtime.

// CHALLENGE

Aging Architecture

A financial brokerage was running legacy Windows Server 2012 systems with outdated SSL ciphers, suffering frequent IOPS bottlenecks during stock market peak hours.

// EXECUTION

Live Proxmox Cluster

CyberHQ architected a high-availability NVMe Ceph cluster, applied CIS Level-2 hardening, and performed live storage vMotion migrations overnight.

// RESULTS

Flawless Operation

Query latency dropped by 64%, 0 minutes of downtime occurred during trading sessions, and the infrastructure achieved SEBI cybersecurity audit compliance.

Hardened Infrastructure.Zero Unplanned Downtime.

Proactive Hardening &Continuous System Health