Linux Disaster Recovery Expertise

Zwiegnet provides expert Linux disaster recovery consulting and hands-on implementation to protect critical servers from hardware failure, ransomware, natural disasters, or human error. We design and deploy robust DR solutions tailored to your RTO (Recovery Time Objective) and RPO (Recovery Point Objective) requirements, ensuring business continuity with minimal downtime and data loss.

Our Linux DR services include:

• Bare-Metal Disaster Recovery with ReaR (Relax-and-Recover) – Automated ISO/USB bootable rescue images for full system restore on new hardware or VMs. Supports GRUB, LVM, RAID, encrypted partitions, and integration with Bacula, rsync, NFS, or cloud storage (S3, Backblaze).
• High Availability & Disaster Recovery (HA/DR) Clustering – Active/passive or active/active setups using Pacemaker/Corosync, DRBD synchronous replication, or SIOS LifeKeeper for zero-downtime failover across sites.
• Backup & Replication Strategies – Incremental/differential backups with rsync, Bacula, BorgBackup, or DRLM. Off-site replication to secure remote locations or cloud for geographic redundancy.
• RTO/RPO Optimization – Custom planning to achieve near-zero RPO (synchronous replication) and low RTO (automated failover, pre-staged recovery environments). Regular DR drills and testing to validate recovery times.
• Security-Hardened Recovery – Encrypted backups, immutable storage, air-gapped off-site copies, fail2ban, ModSecurity, and post-recovery security audits to prevent re-infection.
• Migration & Failover Testing – Zero-downtime migrations to new hardware, cloud, or virtual environments. Full DR plan documentation, runbooks, and simulated disaster exercises.
• Monitoring & Automation – Ansible for configuration management, Nagios/Zabbix monitoring, automated backup verification, and alerting for failed recoveries.
• Compliance & Auditing – Align DR plans with ISO 27001, NIST, CIS benchmarks, and industry regulations. Detailed logging and reporting for audits.

Ideal for enterprises running mission-critical Linux workloads (databases, web servers, ERP, custom applications) that demand 99.99%+ uptime and rapid recovery. We specialize in legacy-to-modern transitions, including CentOS EOL migration to AlmaLinux/Rocky with integrated DR.

Located between Madison and Milwaukee, Wisconsin since 2009 — direct access to seasoned Linux DR experts with thousands of production servers protected.