sudo-rs vs run0 in 2026: Memory-Safe sudo Replacements for Linux Compared
Compare sudo-rs and run0 in 2026: install steps, polkit rules, the sudoers features sudo-rs drops, Ubuntu 25.10 defaults, and a CI-ready migration playbook.
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Sigma Rules for Linux Threat Detection in 2026: Detection-as-Code with pySigma, Zircolite, and SIEM Backends
Sigma turns Linux auditd, journald, sshd, and sudo events into portable YAML detections that compile to any SIEM. Learn pySigma, sigma-cli, Zircolite, and CI patterns for detection-as-code in 2026.
Zeek Network Security Monitoring on Linux: Scripting, JA4 Fingerprints, and Threat Hunting in 2026
Install Zeek 7.x on Linux, tune AF_PACKET for line-rate capture, write your first detection script, use JA4 TLS fingerprints, and stitch Zeek into a SIEM for real threat hunting.
fapolicyd on Linux in 2026: Application Allowlisting on RHEL and Fedora Without Locking Yourself Out
A practical 2026 guide to fapolicyd on RHEL and Fedora: how it uses fanotify to gate execve, how to write rules that don't lock you out, the safe permissive-to-enforce rollout, and how it maps to CIS, STIG, and PCI DSS compliance.
Coraza WAF vs ModSecurity in 2026: Migrating to a Modern Linux WAF
A practical 2026 guide to migrating from ModSecurity to Coraza WAF on Linux. Includes install recipes for Caddy and Nginx (OpenResty + lua-resty-coraza), OWASP CRS 4.15 rule tuning, FTW regression testing, and SIEM shipping tips drawn from production edges.
Cilium Network Policies and Hubble on Linux: eBPF Zero-Trust Networking in 2026
A pipeline-first guide to Cilium 1.17 on Linux: writing CiliumNetworkPolicy resources with L7 HTTP/DNS/Kafka rules, wiring Hubble for flow observability, and validating every policy in CI before it reaches production.
Immutable Linux Backups in 2026: Restic vs Borg vs Kopia with S3 Object Lock
Restic, Borg, and Kopia compared for ransomware-resistant Linux backups in 2026, with S3 Object Lock, append-only SSH, and the 3-2-1-1-0 rule wired end-to-end.
Talos vs Bottlerocket vs Flatcar in 2026: Immutable Kubernetes Nodes Compared
Talos Linux, Bottlerocket, and Flatcar compared for immutable Kubernetes nodes in 2026: attack surface reduction, A/B atomic updates, FIPS 140-3 support, and a clear recommendation for AWS, bare metal, and edge deployments.
YARA and YARA-X on Linux: Writing Detection Rules and Hunting Malware at Scale in 2026
Learn YARA and YARA-X on Linux for malware detection and threat hunting. Covers rule writing, ELF/hash modules, Wazuh integration, Volatility 3 memory scans, and fleet-wide scanning.
Linux Kernel Live Patching in 2026: kpatch, Ubuntu Livepatch, and TuxCare KernelCare Compared
How Linux kernel live patching works in 2026 with kpatch, Ubuntu Livepatch, and TuxCare KernelCare. Install commands, comparison table, and audit tips for zero-downtime CVE fixes.
Wolfi vs Distroless vs Alpine in 2026: Choosing Secure Container Base Images
Wolfi vs Distroless vs Alpine base images for 2026 Linux workloads, with CVE benchmarks, apko and cosign pipeline snippets, and real migration examples for Node.js and Python services.
OpenBao vs HashiCorp Vault in 2026: Linux Secrets, Migration, and the Attacker's View
OpenBao 2.5 vs HashiCorp Vault in 2026: licensing under BUSL vs MPL 2.0, what's free in OpenBao, a real migration recipe from Vault CE 1.14.x, Kubernetes patterns with ESO, and a hardening checklist from a pentester's view.