Automating Edge Device Backups: Agentless vs. Agent Strategies for Decentralized Sites
Decentralized sites and edge devices present particular challenges for backup teams. This practical guide explains how to automate edge-device …
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End-to-end validation: backup consistency and recovery for Oracle RAC environments
Practical guide for administrators: end-to-end validation of backups in Oracle RAC environments. RMAN validation, NAS pitfalls, snapshot consis…
Proxmox for small sites and homelabs: resource optimization, cost-effective HA alternatives
Practical guide for admins: How to operate Proxmox VE resource-efficiently in small branch offices and homelabs — storage design, ZFS replicati…
Ensuring time zone, NTP and locale consistency in heterogeneous server pools
Practical guide for administrators and operations teams: How to verify, standardize, automatically roll out, and safely roll back time zone, NT…
Auditing SUID/SGID Binaries: Automated Risk Checks and Hardening Measures
SUID/SGID files are a common vector for privilege escalation. This practical guide explains how to audit SUID/SGID binaries, automatically prio…
Diagnosing Asymmetric Routing: Tools, Diagnostic Procedure and Countermeasures
Practical guide for administrators and operators: forensic preservation, reproducible test sequence and pragmatic countermeasures for asymmetri…
Container Storage Troubleshooting: OverlayFS, device-mapper and loopback pitfalls
When containers suddenly slow down, builds stall, or 'no space left' appears despite available disk space, the cause is often the storage drive…
Securing CI/CD Runners: Credential Isolation, Secure Workspace Cleanup, and Protection of the Build Chain
Securing CI/CD runners: a practical guide for administrators with concrete measures for credential isolation, robust workspace cleanup, and bui…
Practical deployment of GCP Workload Identity Federation: Keyless Access, Short‑Lived Credentials, and Auditing
Practical guide for administrators: How to implement GCP Workload Identity Federation as keyless access, securely use short-lived credentials, …
Zero-Trust for Cloud APIs: securely deploy mTLS between services
mTLS between services establishes identity, integrity and confidentiality for service-to-service communication. Practical guide for admins: arc…